News Room : power management

TI’s new off-line green mode pulse width modulation controller improves efficiency and space in power supply applications

Julie Day — Mon, 16 Nov 2009 15:28:00 GMT

DALLAS (Nov. 16, 2009) – Texas Instruments Incorporated (TI) (NYSE:TXN) today introduced an off-line green mode pulse width modulation (PWM) controller that minimizes space and system cost while providing high efficiency in power supply applications. The UCC28610’s frequency and peak current modulation creates efficiency levels of 85 percent at full load and high efficiency over the entire load range. The UCC28610 uses 30 percent fewer external components than standard flyback controllers and is designed for applications with an output power range of 15W to 65W. Examples include AC/DC adapters, gaming, notebook and printer adaptors, LCD TVs and monitors, set top boxes, appliance power supplies, bias supplies or other supplies that need to meet ENERGY STAR efficiency standards or requirements under the Energy using Products (EuP) directive of the EU across the entire load range. Order samples of the UCC28610 today: www.ti.com/ucc28610-pr.

Key features and benefits of the UCC28610

Frequency and peak current modulation allows 85 percent efficiency at full load and optimized efficiency over the entire load range
Industry-leading, 125-mW no-load power consumption is more than 200 percent better than current ENERGY STAR requirements
Advanced over current and overload protection eliminates overdesign, which helps reduce the power supply cost by as much as 30 percent when compared to the industry-standard power limit feature
Cascoded MOSFET configuration enables better line surge raggedness than internal high-voltage FETs
Thirty percent fewer external components helps reduce size, system cost and complexity compared to less integrated flyback controllers

Find out more about TI’s green power portfolio by visiting the links below:

· See TI’s complete green power portfolio: www.ti.com/greenpower-pr

· For the complete power portfolio visit: www.ti.com/power-pr

· Ask questions and share knowledge in the isolated controllers forum in TI’s E2E Community: www.ti.com/isolatedcontrollers-pr

Availability and pricing

The UCC28610 is available now in an 8-pin SOIC package and is priced at $0.44 in quantities of 1,000.

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About Texas Instruments

Texas Instruments (NYSE: TXN) helps customers solve problems and develop new electronics that make the world smarter, healthier, safer, greener and more fun. A global semiconductor company, TI innovates through manufacturing, design and sales operations in more than 30 countries. For more information, go to www.ti.com

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TI introduces quad power management supervisor family with programmable delay and watchdog timer

NewsCenter — Wed, 11 Nov 2009 14:00:00 GMT

PRNewswire

DALLAS

(NYSE:TXN)

DALLAS, Nov. 11 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced a new family of quad supply voltage supervisors (SVSs) with programmable delay and watchdog timer, which minimize board space in today's multi-rail power supply designs. The TPS386000, TPS386020, TPS386040, and TPS386060 supervisors can monitor four power rails that are greater than 0.4 V with a threshold accuracy of 0.25 percent. This accuracy combined with an integrated watchdog timer provides system reliability for processor-based applications. The TPS386000 family of devices offer an independent programmable delay input for each supervisor channel, which can be set from 1.25 ms to 10 seconds for power supply sequencing. Order the TPS386000 evaluation module today: www.ti.com/tps386000-pr.

The TPS386000 devices operate with a very low quiescent current of 12 uA, which can help minimize system power consumption. They are designed for applications such as telecom infrastructure, networking, server/storage, industrial and analog sequencing applications.

Key features and benefits of the TPS386000 family

Integration of four supervisors into one IC with a threshold accuracy of 0.25 percent creates a highly integrated, accurate and small device to help minimize cost and board space
Programmable delay provides flexibility for use with a wide range of processors and provides power supply sequencing support
The low quiescent current (12 uA typical) helps minimize power consumption in the design
Watchdog timer enhances reliability in processor applications
Several options give designers flexibility to meet their system's power requirements:
- Options for open-drain, push-pull, active high and active low reset outputs
- Window comparator on the fourth supervisor can be used for over voltage and under voltage detection or as a fifth supervisor for monitoring a negative voltage

Find out more about TI's supervisor and sequencer portfolio by visiting the links below:

For the complete supervisor and sequencer portfolio visit: www.ti.com/supervisors-pr
See TI's complete power management portfolio: www.ti.com/power-pr
Ask questions and share knowledge in the supervisors and sequencers forum in TI's online E2E Community: www.ti.com/svsforum-pr

Availability and pricing

The TPS386000 is available now in a 4-mm x 4-mm, 20-pin QFN package and is priced at $2.20 in quantities of 1,000.

About Texas Instruments

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SOURCE: Texas Instruments Incorporated

Web site: http://www.ti.com/

Texas Instruments' new synchronous DC/DC boost converter with integrated current-limiting switch saves space and cost in portable devices

NewsCenter — Mon, 19 Oct 2009 13:00:00 GMT

PRNewswire

DALLAS

(NYSE:TXN)

DALLAS, Oct. 19 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced two integrated products designed to provide power and protection for USB ports. The TPS2500 and TPS2501 incorporate a boost switching regulator with an onboard current-limiting switch that saves space and cost by providing an integrated solution that meets 5-V USB power requirements from a 1.8 - 5.25V input. The output current limit can be programmed via an external resistor from as low as 130 mA to as high as 1400 mA, supporting up to two USB ports from a single device.

The onboard switching regulator is a highly efficient synchronous boost converter, with greater than 94 percent efficiency for 3.3V inputs at typical USB current ranges. The TPS2500 features a pulse-skipping mode for high efficiency at light loads, while the TPS2501 employs fixed-frequency operation across the load range for EMI sensitive designs. Both devices are designed for battery powered portable devices, set top boxes, printers or any USB application without native 5V supply. For product details see: www.ti.com/tps2500-pr.

Key features and benefits of the TPS2500

Integrated boost converter and switch saves space and optimizes designs
Wide Vin range of 1.8 - 5.25V is optimized for single-cell Li-ion battery applications
The auxiliary 5.1V output eliminates the need for additional 5V DC/DC supply
Current limiting range from 0.13 - 1.4 A is the optimal current range for USB-powered applications

Find out more about TI's USB power switches by visiting the links below:

See TI's complete power management portfolio: www.ti.com/power-pr
For the complete USB power portfolio visit: www.ti.com/usbpower-pr
Ask questions and share knowledge in the power distribution Forum in TI's E2E Community: www.ti.com/powerdistribution-pr

Availability and pricing

The TPS2500 and TPS2501 are available now in a 10-pin SON package, priced at $1.20 in quantities of 1,000.

About Texas Instruments

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SOURCE Texas Instruments Incorporated

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SOURCE: Texas Instruments Incorporated

Web site: http://www.ti.com/

TI introduces industry's first 800-mA, 30-V linear battery chargers with automatic USB detection

NewsCenter — Mon, 12 Oct 2009 13:00:00 GMT

Tiny single-input, single-cell Li-Ion chargers simplify charging in portable designs

PRNewswire

DALLAS

(NYSE:TXN)

DALLAS, Oct. 12 /PRNewswire/ -- Texas Instruments Incorporated (TI) today introduced two families of 800-mA USB battery chargers with automatic USB detection for single-cell, lithium-ion (Li-Ion) battery-powered electronics. The bq2404x and bq2405x battery charger integrated circuits have a high input-voltage range of up to 30 V, and 6.6-V overvoltage protection to support handheld devices, from entry-level feature phones to smartphones, and other low-power handheld devices, that may use low-cost adapters. See: www.ti.com/bq2404x-pr, www.ti.com/bq2405x-pr.

The bq2405x's automatic USB detection feature can intelligently detect if a power source is a dedicated power adapter or USB port. This allows a system to start immediate fast charging if a USB transceiver is unavailable due to a discharged battery.

Key features of the bq2404x and bq2405x battery chargers:

Charging accuracy: one percent charge voltage and 10 percent current accuracy using single-output channel
USB compliance: USB current limiting and input voltage dynamic power management
System safety: complies with JEITA guidelines; 30-V input rating and overvoltage protection and includes a 10-hour safety timer
System flexibility: bq2405x has automatic input source detection of USB port or a dedicated power adapter

Availability and pricing

TI's bq24040, bq24041, bq24050, bq24052 and bq24055 are available in volume now from TI and its authorized distributors. The devices come in two small package options: a 10-pin, 2 mm x 2 mm, or 12-pin, 2 mm x 3 mm SON package. Suggested resale pricing is $1.15 to $1.45 in 1,000-unit quantities. Samples, evaluation modules and application notes on TI's battery chargers are available.

New battery charger selection tool helps speed selection process

TI provides a broad range of battery charger ICs that support single-cell and multi-cell battery packs used in handheld, portable medical and portable industrial equipment. Designers can select recommended products using TI's new Battery charger selector tool, where one can choose criteria based on battery chemistry, number of cells, topology needed and battery voltage levels.

Find out more about TI's battery charging portfolio and other power management products by visiting the links below:

For the complete battery charger portfolio visit: www.ti.com/batterycharger-pr
See TI's complete power management portfolio: www.ti.com/power-pr

About Texas Instruments

Texas Instruments (NYSE: TXN) helps customers solve problems and develop new electronics that make the world smarter, healthier, safer, greener and more fun. A global semiconductor company, TI innovates through design, sales and manufacturing operations in more than 30 countries. For more information, go to www.ti.com.

Trademarks

All trademarks and registered trademarks are property of their respective owners.

SOURCE Texas Instruments Incorporated

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SOURCE: Texas Instruments Incorporated

Web site: http://www.ti.com/

Texas Instruments introduces 200-mA linear regulators with auto low-power mode

NewsCenter — Thu, 01 Oct 2009 12:00:00 GMT

LDOs achieve 8-uA quiescent current to increase battery runtime without sacrificing noise performance

PRNewswire

DALLAS

(NYSE:TXN)

DALLAS, Oct. 1 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced a family of 200-mA, low dropout regulators (LDOs), which offer an auto low-power mode that combines ultra-low quiescent current of less than 8 uA with fast transient response of +/-50 mV while maintaining low noise and a high power supply rejection ratio (PSRR). With 70 percent lower quiescent current than existing solutions, the new LDOs help increase battery runtime without sacrificing performance in noise-sensitive applications, such as smart phones, MP3 players, RF modules, remote controls, ZigBee® network systems and handheld consumer devices. For product details see: www.ti.com/tps727-pr.

Typical high-performance LDOs require the load quiescent current to be 25 uA or less. Auto low-power mode allows the TPS727xx to achieve less than 8 uA without an additional mode pin and automatically switches to and from low power depending on load current. In addition, the use of auto low-power mode eliminates the need to modify software drivers to control the mode pin, which speeds and simplifies the design process. It also reduces cost by eliminating the need for a general purpose input/output (GPIO) pin and overhead firmware.

Key features and benefits

Low-power operation with innovative auto low-power mode, ultra-low quiescent current of 8 uA, fast transient response +/-50mV for 200mA, low noise 32uVRMS and high PSRR 70dB at 1kHz helps increase battery runtime without sacrificing noise
Enables use of small 1.0 uF ceramic capacitors, which allows for a smaller overall solution
Provides low dropout of 130 mV, plus stable and accurate output voltage range of 0.9-5 V, which increases system reliability
Factory EEPROM programming of the output voltage provides the flexibility to quickly sample and release custom V out versions

Find out more about TI's linear regulator portfolio and selected products for portable applications by visiting the links below:

For the complete linear regulator portfolio visit: www.ti.com/linearregulators-pr
See TI's complete power management portfolio: www.ti.com/power-pr
Ask questions and share knowledge at TI's E2E forum: www.ti.com/linearforum-pr

Availability and pricing

The TPS727xx is available now in a 1.5 x 1.5 mm SON-6 package and a 0.8 x 1.22 mm, 0.4 mm pitch, 4-ball wafer chip-scale (WCSP) package. It is priced at $0.48 in quantities of 1,000.

About Texas Instruments

Trademarks

ZigBee is a registered trademark of the ZigBee Alliance. All registered trademarks and other trademarks belong to their respective owners.

SOURCE Texas Instruments Incorporated

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SOURCE: Texas Instruments Incorporated

Web site: http://www.ti.com/

Texas Instruments' single-chip power management units for portable electronics cut board space in half

NewsCenter — Mon, 21 Sep 2009 13:00:00 GMT

Highly integrated and efficient PMUs support advanced processor power requirements

PRNewswire

DALLAS

(NYSE:TXN)

DALLAS, Sept. 21 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced the TPS6507x family of single-chip, power management integrated circuits for portable electronics. The new power management units (PMUs) implement all sequencing and default options to power today's leading processors, including TI's OMAP™ and digital signal processors. For more information and to order samples, please see: www.ti.com/tps6507x-pr.

The TPS65070 and TPS65073 devices result in a 50-percent smaller DC/DC implementation versus a discrete design by integrating three highly efficient, 2.25-MHz, 1.5-A DC/DC step-down converters that support core processor, memory and I/O voltages; two general purpose, 200-mA LDOs; white LED backlighting to support up to 5-inch LCD displays; I2C communications interface; 10-bit analog-to-digital converter; touch-screen interface and an integrated 1.5-A linear battery charger.

TI's new PMUs support the following processors with easy-to-use reference designs:

TPS65070: OMAP-L1x, TMS320C6742, TMS320C6746 and TMS320C6748 devices
TPS65073 and TPS650731: OMAP35x processors

Availability, packaging and pricing

The TPS65070 and TPS65073 devices are available in volume production from TI and its authorized distributors. The devices come in a 6 mm x 6 mm x 0.4 mm, 48-pin, leadless, thermally enhanced QFN package with a suggested resale price of $3.95 in 1,000-unit quantities. Samples, evaluation modules and application notes are available.

More about TI's PMU portfolio:

Power management units: www.ti.com/pmu-pr.
TI's power processor reference design tool: www.ti.com/processorpower-pr
TI Power community: http://www.ti.com/powerforum-pr

About Texas Instruments

Trademarks

OMAP is a trademark of Texas Instruments. All trademarks and registered trademarks are the property of their respective owners.

SOURCE Texas Instruments Incorporated

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SOURCE: Texas Instruments Incorporated

Web site: http://www.ti.com/

Texas Instruments' new 12-channel sequencer and system health monitor with power supply margining reduces board space and eases design

NewsCenter — Tue, 15 Sep 2009 13:00:00 GMT

Intuitive Fusion Digital Power™ Designer tool speeds configuration

PRNewswire

DALLAS

(NYSE:TXN)

DALLAS, Sept. 15 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced a sequencer and system health monitor that features power supply margining and comprehensive non-volatile error logging, allowing customers to diagnose power supply failures in their systems. The UCD90120 helps reduce board space by integrating 12 rails of sequencing; monitoring capability for up to 13 channels of voltage, current or temperature; and 10 channels of power supply margining. UCD90120 is designed for any system requiring sequencing and monitoring of multiple power rails including industrial, telecom infrastructure, servers and storage systems. For product details see: www.ti.com/ucd90120-pr.

TI's easy-to-use Fusion Digital Power Designer Graphical User Interface (GUI) allows the designer to configure the UCD90120 via a PMBus™/I2C interface. The free, downloadable tool simplifies the development process and improves time-to-market by allowing the designer to configure all device parameters in minutes. To download the Fusion Digital Power Designer see: www.ti.com/fdpd-pr.

Key features and benefits of the UCD90120

Sequence and configure up to 12 channels, which allows flexible ramping up and down of multiple rails simultaneously
Detect over- and under-voltage power supply warnings and faults and respond to these faults by configuring retries, shutdown delays and slave rail shutdowns. Failures are analyzed and logged via non-volatile error logging.
Margin up to 10 rails via PMBus to ensure power supply performance at upper and lower limits
Easily configure the design with the Fusion Digital Power Designer GUI to speed time to market

Find out more about TI's supervisors and sequencers by visiting the links below:

See TI's complete power management portfolio: www.ti.com/power-pr
Ask questions and share knowledge in the SVS Forum in TI's E2E Community: www.ti.com/svsforum-pr

Availability and pricing

The UCD90120 is available now in a 64-pin VQFN package, priced at $4.95 in quantities of 1,000. TI is also offering samples of UCD90124, which adds the ability to control and monitor up to four fans. Volume production of this device is expected in the fourth quarter. For details see: www.ti.com/ucd90124-pr.

About Texas Instruments

Trademarks

Fusion Digital Power is a trademark of Texas Instruments. All registered trademarks and other trademarks belong to their respective owners.

SOURCE Texas Instruments Incorporated

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SOURCE: Texas Instruments Incorporated

Web site: http://www.ti.com/

Texas Instruments applies digital power management to next-generation Xilinx FPGA designs

NewsCenter — Mon, 31 Aug 2009 14:00:00 GMT

TI simplifies power design in new Virtex-6 FPGA evaluation kit

PRNewswire

DALLAS

(NYSE:TXN)

Xilinx Virtex-6 FPGA ML605 evaluation kit with TI’s UCD9240 digital power controller

DALLAS, Aug. 31 /PRNewswire/ -- Texas Instruments (TI) (NYSE: TXN) today announced Xilinx is using TI power management technology to simplify power design in its new Virtex®-6 ML605 field programmable gate array (FPGA) evaluation kit. TI's Fusion Digital Power™ controllers give FPGA users advanced power management capability and design flexibility, including the ability to monitor a power system's behavior in real time. For TI power reference designs for Xilinx FPGAs, visit: www.ti.com/xilinxfpga-pr.

"As FPGA designs become increasingly sophisticated, there is a growing need for intelligent power management solutions with accurate current monitoring and control," said Brent Przybus, director of platform marketing at Xilinx. "New developments in digital control technology from Texas Instruments give Virtex-6 FPGA customers a high degree of power system optimization, while accelerating design time with the Xilinx Base Platform."

TI's UCD9240 integrated power system controller, along with complementary power stage ICs and plug-in modules, intelligently manage today's high-density, high-performance power systems, such as those used in telecom and datacom infrastructure applications. The controller supports up to four independent digital control loops and up to eight phases. Two UCD9240 devices manage the power for the Virtex-6 FPGA ML605 evaluation kit. The kit also includes the INA333, the industry's lowest power zero-drift instrumentation amplifier. Xilinx's soon to be released Spartan-6 FPGA SP605 kit also includes TI's digital power products. To order the ML605 kit, please visit: http://www.xilinx.com/kits.

Easy-to-use Fusion Digital Power design tool

The evaluation kit features TI's digital power design tool with an easy-to-use graphical user interface, which helps designers configure key design parameters, optimize control loop design, and meet specific supply voltage sequencing criteria - with no programming required. The tool contains real-time monitoring, control loop modeling and impedance measuring features that support Virtex-6 FPGA design requirements.

"A major focus for Xilinx's new generation of products is reducing power consumption without compromising performance," said Steve Bakota, manager of TI's digital power business. "Power measurement and control are important features in Xilinx's new development boards. Customers using our digital power products can take full advantage of advances this technology delivers."

Find out more about TI's power management portfolio:

TI's digital power products, including UCD9K and C2000 controllers, see: www.ti.com/digitalpower-pr
Details on the INA333 amplifier: www.ti.com/ina333-pr.

X-fest 2009

TI is a Platinum partner of X-fest, a series of free worldwide technical seminars sponsored by Avnet Electronics Marketing and Xilinx. From October 2009 through February 2010, X-fest events will be hosted in 37 locations throughout Asia, Europe, North America and Japan. At the events TI plans to demonstrate its new digital power solutions for Virtex-6 and Spartan-6. For more information about X-fest: http://www.em.avnet.com/xfest.

About Texas Instruments

Texas Instruments (NYSE: TXN) helps customers solve problems and develop new electronics that make the world smarter, healthier, safer, greener and more fun. A global semiconductor company, TI innovates through design, sales and manufacturing operations in more than 30 countries. For more information, go to www.ti.com.

Trademarks

Fusion Digital Power is a trademark of Texas Instruments. All trademarks and registered trademarks are property of their respective owners.

SOURCE Texas Instruments Incorporated

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SOURCE: Texas Instruments Incorporated

Web site: http://www.ti.com/
http://www.em.avnet.com/xfest/
http://www.ti.com/xilinxfpga-pr/

Texas Instruments' high-power Power-over-Ethernet controller can deliver greater than 90 percent efficiency

NewsCenter — Mon, 18 May 2009 08:00:00 GMT

Integrated PoE Plus controller meets new standard for powered device applications

DALLAS (May 18, 2009) - Texas Instruments Incorporated (TI) (NYSE:TXN) introduced today a high-efficiency, high-power Power-over-Ethernet (PoE) controller for 13-watt or 26-watt powered device (PD) applications, such as IP phones, wireless access points or security cameras. Fully compliant to the IEEE 802.3at draft 4.0 standard, the integrated TPS23754 supports DC/DC converter topologies that can achieve higher than 90 percent power conversion efficiency, which reduces heat and increases reliability of the system. The single-chip PoE solution leverages a 100-V manufacturing process to provide a robust solution in a 13-watt or 26-watt design. For product details and to request samples see: www.ti.com/tps23754-pr.

Along with the TPS23754, TI is sampling the TPS23756 to support auxiliary input voltages as low as 12 V, allowing a PoE designer to use popular, inexpensive 12-V wall adapters. Additionally, the TPS23757 will support 13-W and below applications requiring the higher efficiency DC/DC topologies. Both the TPS23756 and TPS23757 will be available in the third quarter.

Key features

Complementary auxiliary driver with programmable dead-time
PD controller supports up to 825-mA continuous current
Power source selection priority
Current and inrush limit
100-V monolithic SOI process

Key benefits

Supports high-efficiency isolated flyback and forward DC-DC converter topologies
Implements IEEE 802.3at (draft 4.0) for PD applications requiring greater than 13 W
Natively supports external, local power sources with or without PoE power present
PD front end protects against current inrush and short circuits
Robust manufacturing process withstands voltage surges up to 100 V at the IC

Availability and pricing

The TPS23754 is available now in a HTSSOP-20 package and is priced at $1.90 in quantities of 1,000. The TPS23756 will be available in third quarter in the same quantities and pricing. The TPS23757, also available in third quarter, is priced at $1.65 in quantities of 1,000.

Find out more about PoE and connect with TI by visiting the links below:

See TI PoE portfolio, tools and resources: www.ti.com/poe-pr
Get PoE design support on TI E2E Community: www.ti.com/poecommunity-pr
Find TI power management products and tools: www.ti.com/power-pr
TI's IP phone solutions: www.ti.com/voip-pr

TI's popular SwitcherPro™ Design Software now downloadable to the desktop

NewsCenter — Mon, 02 Mar 2009 08:00:00 GMT

DALLAS (March 2, 2009) - Texas Instruments Incorporated (TI) (NYSE:TXN) introduced today the latest version of its free SwitcherPro Design Software for DC/DC controller and converter power supply designs. The SwitcherPro Design Software is now available as both a Web-based tool and the new SwitcherPro Desktop (DT) application. Engineers can download the SwitcherPro DT application to their desktop, save their work on their own system and work completely offline. The SwitcherPro DT application has all of the parts and power of TI's online tool with a familiar desktop interface. To download the new SwitcherPro DT application please visit: www.ti.com/switcherpro-pr.

Key Features

Downloadable desktop application
Calculate efficiency, loop responses and stress for all key components
Customize all components by selecting them from a built-in parts database
View and output a full parts list on the bill of materials (BOM) page
Explore changes in multiple parameters using the what-if analysis design calculator
Share designs with other SwitcherPro users
View and modify existing EVM designs
Use passive components, such as inductors and TI's NexFET^TM power MOSFETs

Key Benefits

SwitcherPro DT allows the user to either work online or work completely offline and save their work to their own system
Engineers can quickly and easily design DC/DC controller and converter power supplies

Find out more about SwitcherPro Design Software by visiting the links below:

SwitcherPro Design Software home page: www.ti.com/switcherpro-pr
Videos: https://community.ti.com/media/p/4114.aspx
Tools: www.ti.com/switcherpro-pr
TI E2E community and support: https://community.ti.com/forums/73.aspx
TI power management: www.power.ti.com

Three new power management chips increase efficiency, voltage and output current in LED designs

NewsCenter — Fri, 23 Jan 2009 08:00:00 GMT

DALLAS (January 23, 2009) - Texas Instruments Incorporated (TI) (NYSE:TXN) introduced today a high-power DC/DC boost LED driver (TPS61500) and high-voltage DC/DC boost converter (TPS61175), and expanded its step-down DC/DC converter series with TPS62110. These devices can support input voltages of up to 18 V and feature smaller voltage references for improved LED circuit design. These energy-efficient devices are cross-functional and work across a variety of LED applications, including signage, ambient light, office light, general illumination, military, medical and sensors. For product details, see www.ti.com/tps61500-pr, www.ti.com/tps61175-pr and www.ti.com/tps62110-pr.

Key features of the TPS61500 2.9-V to 18-V input voltage range 3.0-A current switch with integrated FET Four 3- W LEDs from 5 Vin Eight 3-W LEDs from 12 Vin 200 kHz to 2.2 MHz switching frequency Brightness dimming User-defined soft start 93 percent efficiency	Key benefits of TPS61500 Wide input supply range for 12-V or 15-V industrial power rails Up to 1-A output current HTSSOP package for best thermal behavior Can be tailored to many applications
Key features of TPS61175 Wide input voltage range of 2.9 V to 18 V 3.0-A/40-V integrated MOSFET Wide switching frequency of 200 kHz to 2.2 MHz	Key benefits of TPS61175 Supports industrial applications with 12-V, 15-V bus systems or multi-cell applications Builds small, internal compensation and enables flexible configurations for different application needs like boost, SEPIC and fly back converters Offers choice to design for efficiency, smallest solution size or specific frequency range
Key features of TPS62110 Adjustable input voltage: 3.1 V to 17 V Adjustable output voltage: 1.2 V to 15 V Maximum output current 1.5 A Maximum efficiency 95 percent Quiescent current: 20 uA; 2 uA in shutdown Switching frequency: 1 MHz Power good and low-battery detectSoft start limits in-rush current	Key benefits of TPS62110 Closes the gap between low-power DC/DC converters for portable applications and higher power DC/DC SWIFTTM converters for industrial applications As a LED driver new lighting achieves up to 90 percent in energy savings and the life time of the light increases up to 8 times Can support fixed line rails like 12 V or 15 V, as well as a flexible number of battery cells Small QFN package and small exterior inductor (6.8 uH) result in small overall solution size

Availability and pricing

The TPS61500, TPS61175 and TPS62110 are available now in production quantities. Please see the table below for packaging and pricing information for each device. Prices are based on 1,000-unit quantities.

Device Package Pricing

Device	Package	Pricing
TPS61500	14-pin HTSSOP	$1.60
TPS61175	14-pin HTSSOP	$1.80
TPS62110	4 x 4mm QFN	$1.90

TI's LED portfolio

From RF and power management (including AC/DC, power factor correction, DC/DC and linear power conversion) to 32-bit real time microcontrollers (MCU), ultra-low-power 16-bit MCUs and digital signal processors (DSP), TI has products for all of your LED design needs. Find out more about TI's LED driver portfolio by visiting the links below.

www.ti.com/led for:
- Videos
- Application Notes
- Solution Guides
TI's comprehensive power management portfolio: www.power.ti.com
TI Piccolo^TM microcontrollers: www.ti.com/piccolo

New system-on-chip MCU solution from TI helps e-metering applications become more cost-effective and energy-efficient

NewsCenter — Thu, 08 Jan 2009 08:00:00 GMT

MSP430FE42x2 MCU's high integration and optimized peripherals lowers EBOM to $1 for single-phase, low power e-metering applications

DALLAS (Jan. 8, 2009) - As utility companies adopt electronic-based energy meter technology to improve grid performance and reliability, reduce costs and offer energy-saving consumer options, Texas Instruments Incorporated (TI) (NYSE: TXN) announced the MSP430FE42x2 microcontroller (MCU) series, reducing electronic bill of materials (EBOM) to the $1 range in high volumes for single-phase electricity metering (e-metering) applications. MSP430FE42x2 MCUs integrate all metering functionality onto a single chip and offers ultra-low power operation so that only simple voltage regulation such as that provided by TI's TPS78230 regulator is required for a complete solution. FE42x2 MCUs come in a 64-pin LQFP package, offer up to 32 kB of in-system programmable flash memory and are available today. FE42x2 MCUs are fully compatible with the $149 MSP-FET430U64 JTAG emulation toolkit, speeding development and time to market. For more information, please visit TI's metering microsite at www.ti.com/meteringpr.

MSP430FE42x2 key features and benefits

Unique embedded signal processor (ESP) peripheral fully automates energy conversion by integrating two independent, high-resolution sigma-delta ADCs, programmable gain amplifiers, a temperature sensor, precision voltage reference, H/W multiplier and a dedicated fixed function MSP430 CPU.
The ESP provides 0.1 percent accurate energy measurement over a dynamic current range of 1000- to-1, surpassing the 1 percent accuracy common in typical meters today.
A second, fully-programmable on-chip MSP430 CPU is available for application processing and communication functions. An enhanced watchdog timer, brownout protection and a supply voltage supervisor increase system reliability.
A 128 segment LCD driver, a three channel 16-bit pulse width modulation timer, serial communication port and a basic timer for a real-time clock function provide all functionality for a complete meter implementation while saving board space, reducing development time and streamlining time-to-market.
Direct device operation from 3V supply with the CPU and ESP active at only 2.5 mA. During a power outage, the device can operate in standby mode at 1.1 uA with real-time clock function active. Ultra-low power can enable 10 and 20-year battery life in metering applications.

TI's complete portfolio of smart solutions drive intelligent metering applications

TI's utility metering portfolio includes optimized solutions for electricity, heat, water and gas metering, as well as for power line communication (PLC) and radio frequency (RF) interfaces such as ZigBee&#174 for advanced metering infrastructure (AMI). As part of a smart solution, previously independent systems like meters, home thermostats and large appliances can communicate wirelessly or over existing power lines to help consumers make more informed choices about energy by displaying usage and billing information and performing demand response, remote connect and diagnostics via automatic communication to and from the utility.

Find out more about TI's MSP430FE42x2 by visiting the links below:

TI metering solutions: www.ti.com/meteringpr
MSP430FE42x2 product folder: http://focus.ti.com/docs/prod/folders/print/msp430fe4242.html
MSP430 tools page: www.ti.com/msp430tools
MCU videos: https://community.ti.com/media/g/microcontrollers/default.aspx
TI's microcontrollers: www.ti.com/mcu
Smart metering: http://focus.ti.com/docs/solution/folders/print/407.html
TI E2E Community and support: https://community.ti.com/forums/35.aspx

TI's new power-distribution switches provide highly accurate current limits to ensure safety and guard against short-circuits

NewsCenter — Mon, 05 Jan 2009 08:00:00 GMT

DALLAS (Jan. 5, 2009) - Four new power-distribution switches from Texas Instruments Incorporated (TI) (NYSE:TXN) enable end equipment to handle heavy capacitive loads while preventing short-circuits in a variety of applications, such as USB ports/hubs, cell phones, laptops, flat panel TVs and set-top boxes. The new chips offer a programmable current-limit threshold from 75 mA to 1.3 A via an external resister with up to 6 percent accuracy. The constant current TPS2552/53 and latch-off TPS2552-1/53-1 provide at least a 50 percent improvement in current limit accuracy compared to competing solutions. The TPS2552/3 devices limit the output current to a safe level by switching into a constant-current mode when the output load exceeds the current-limit threshold while the TPS2552-1/3-1 turns the switch off completely during over-current events. The enhanced accuracy of the TPS2552/53 also enables the device to be used as a simple circuit-breaking or current-limiting solution for a wide range of applications outside of consumer end equipment, including optical modules and low current management rails in telecommunications systems. See: www.ti.com/tps2552-pr.

Key Features

+/-6 percent current-limit accuracy at 1.3 A
Meets USB current-limiting requirements
Adjustable current limit from 75 mA to 1,300 mA
Constant current (TPS2552/3) and latch-off (TPS2552-1/3-1) versions
Compatible with TPS2550/1
Wide, 2.5-V to 6.5-V input range
Fast 2-uS over-current response
-40 degree C to 85 degree C operating temperature range

Key Benefits

No need to over-design power supply for inaccurate switch
Eases USB power implementation
Single device used across platforms, with just a resistor change
Fault behavior can be optimized for different designs
Easy upgrade path from existing TPS2550/1 products
Same product allows protection for 2.5-V, 3.3-V and 5-V rails
Switch response fast enough to protect power supply
Temperature range meets most commercial and industrial requirements
Small package options save board space

Availability and pricing

The TPS2552/53 is available now in SOT23-6 and 2mm x 2mm SON-6 packaging and is priced at $0.75 in quantities of 1,000.

Find out more about TI's USB power switch portfolio by visiting the links below:

Evaluation modules and samples www.ti.com/tps2552-pr
Current-limit threshold calculator tool www.ti.com/tps2552calculator
www.ti.com/usbpowerswitches for:
- New products
- Application notes
- Parametric search
TI's complete power management portfolio: www.power.ti.com

TI 0.7-V input boost converter supports 5 uA operating current

NewsCenter — Tue, 16 Dec 2008 08:00:00 GMT

Tiny power management chip maintains 85 percent efficiency at light load; helps extend battery life in MSP430 microcontroller-based applications

DALLAS (December 16, 2008) - Texas Instruments Incorporated (TI) (NYSE: TXN) introduced today a 2 MHz DC/DC boost converter that operates at 5 uA of quiescent current, while maintaining a high efficiency at light load conditions. The integrated circuit supports an input voltage of 0.7-V to 5.5-V and an output voltage range of 1.8-V to 5.5-V, extending battery life in low-power microcontroller-based designs, such as single AA or coin-cell alkaline applications. See: www.ti.com/tps61220-pr.

The new TPS61220 boost converter, which comes in a small SC-70 package, provides full battery capacity utilization of a portable system, because of its ability to start up with a 0.7-V input voltage into a connected load. Based on a hysteretic, off-time control method, the device uses synchronous rectification to maintain more than 85 percent power efficiency at the lowest possible operating current. This allows microcontroller-based applications, such as those that use TI's new CC430 microcontroller and low-power RF on a chip (www.ti.com/cc430), to extend battery life by maintaining efficient standby operation.

The TPS61220 provides output current up to 50 mA at a 5-V output, and discharges the system's lithium-ion battery down to 2.5-V. The device's output voltage can be programmed by an external resistor divider, or is fixed internally on the chip. In addition, the converter can be disabled to minimize battery drain.

Smallest boost converter solution in an SC-70 package

The TPS61220, which comes in a 6-pin, SC-70 package, can achieve a total DC/DC converter solution size of 6.4 x 9 mm with a height of only 1 mm. The small size and high performance allow designers to implement the device in any portable, microcontroller-based application powered by A, AA or AAA batteries.

Key technical features of the TPS61220:

85 percent efficiency at 30 mA output current at 3.3-V (Vin greater than 1.2-V) and 20 mA output current at 5-V (Vin greater than 1.2-V)
Typical device quiescent current of 5 uA
Startup into load at 0.7-V input voltage
Operating input voltage range from 0.7-V to 5.5-V
Fixed and adjustable output voltage options from 1.8-V to 5.5-V
Overtemperature protection

Pricing and availability

The TPS61220 boost converters are sampling today, and are scheduled to be available in volume by the end of 2008. Suggested resale pricing in quantities of 1,000 units is $0.65. TPS61xxx evaluation modules, application notes and TI's DC/DC Quick Reference Guide are available through power.ti.com.

Leading power management IC portfolio for MSP430 microcontrollers

TI power management products support a wide range of microcontroller-based designs, including those MSP430-based applications that require ultra-low input voltage, low quiescent current boost conversion or a low-power step-down configuration. In addition to the TPS61220, the TPS61200 boost converter (www.ti.com/tps61200) can support input voltage levels as low as 0.3-V and lower, opening the door to energy harvesting designs. TI's TPS780xx (www.ti.com/tps780xx) is the industry's first 500 nA, dual-output low-dropout regulators (LDOs) available in a 2 mm x 2 mm SON package.

TI 1.5-A linear battery chargers maximize AC adapter and USB input power

NewsCenter — Mon, 24 Nov 2008 08:00:00 GMT

High-performance 28-V Li-Ion chargers with dynamic input power management integrate multiple features in a 3 mm x 3 mm QFN

DALLAS (Nov. 24, 2008) -- Texas Instruments Incorporated (TI) (NYSE: TXN) introduced today four 28-V, 1.5-A linear charge management ICs with integrated FETs aimed at smart phones and other portable electronics. The bq2407x family of lithium-ion (Li-Ion) battery chargers allows an end-equipment to be powered directly from an external power source, even if the unit's battery pack is defective, fully discharged or absent. See: www.ti.com/bq24072-pr.

TI's new bq24072, bq24073, bq24074 and bq24075 chargers integrate a high number of features in a 3 mm x 3 mm QFN. The chargers incorporate a 28-V, 1.5-A input FET, a 5-A battery FET, current sensor, reverse blocking protection, thermal regulation and other battery management features. The devices support up to 1.5-A in charging mode and up to 5-A in discharge mode, which allows them to support higher currents from RF power amplifiers, such as those found in a GSM application.

The four bq2407x chargers also provide a unique power path management feature to simultaneously charge the battery and power the system. This reduces the number of charge and discharge cycles on the battery, enables proper charge termination and allows the system to turn on instantly, even if a battery is depleted. The battery charging rate is dynamically adjusted based on system voltage to ensure proper operation. Additionally, the battery can supplement the system's current requirements when an adapter cannot deliver the peak system currents, giving a designer the option of using a smaller adapter.

The bq2407x family offers an input voltage-based dynamic power management function in USB mode that monitors the input voltage and limits the input current if the input voltage drops below a preset value. This prevents the system from crashing USB sources that are incorrectly configured or poorly designed.

System protection and USB compliance

The bq2407x chargers support a high-input voltage rating of 28-V with a 6.6-V or 10.5-V over-voltage protection threshold, which allows a designer to select an inexpensive adapter to help lower system cost. The adapter input current limit is programmable with a resistor up to 1.5-A. In addition, the devices also comply with USB charging standards, such as USB-IF, by limiting the USB input current to 100 mA or 500 mA.

The devices charge the battery in three phases, including conditioning, constant current and constant voltage. System output voltage of the bq24072 automatically matches the battery's voltage. The bq24073 and bq24074 have a fixed output voltage of 4.4-V, while the bq24075 is set at 5.5-V. The bq24075 incorporates a battery SYSOFF function that disconnects the battery from the system, enabling a system with TI's bq27510 Impedance Track&#8482 battery fuel gauge (www.ti.com/bq27510) to measure open circuit voltage and predict remaining battery capacity.

Broad portfolio of battery management products

End applications in wireless, computing, consumer and industrial/medical markets continue to expand into the portable space. TI battery management solutions help address system protection, cost-effective linear and highly efficient switch-mode battery charging. With battery-powered systems demanding increased reliability, TI ensures maximum safety with protection circuits that protect systems from over-voltage and over-current conditions.

TI battery management solutions support a wide range of battery chemistries and cell counts, from popular Li-Ion technologies to nickel metal hydride and lead acid batteries. Visit TI's Battery Forum online community at www.ti.com/batteryforum to discuss battery design factors, chemistries and technology with TI engineers, third party members and other engineers.

Pricing and availability

All four bq2407x devices are available in volume today from TI and its authorized distributors. The devices come in a 16-lead, 3 mm x 3 mm QFN. Suggested resale pricing in 1,000-piece quantities is $1.60. Evaluation modules of the bq2407x family of chargers, design application notes, TI's Battery Charger Selection tool and Battery Chargers Catalog are available at www.ti.com/batterycharger.