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TI - Three New Power Management Chips Increase Efficiency, Voltage and Output Current in LED Designs

 2009-02-15

Texas Instruments Incorporated (TI) introduced 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-led, 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 detect
  • Soft 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

The TPS61500, TPS61175 and TPS62110 are available now in production quantities.

Device

Package

TPS61500

14-pin HTSSOP

TPS61175

14-pin HTSSOP

TPS62110

4 x 4mm QFN

 

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.