TI three latest power management chip to enhance the efficiency of LED circuit design

TI (TI) announced the launch of a high power DC/DC boost LED driver TPS61500, TPS61175 and DC/DC high voltage boost converter, Buck DC/DC converter TPS62110 total of three new power management chip, the reference voltage can support the input voltage up to 18V and has a smaller, contribute to the design of improved LED circuit.

Wide frequency range switch high power DC/DC boost LED driver TPS61500 in 2.9V ~ 18V input voltage range, 200kHz ~ 2.2MHz, 3.0A current switch and integrated FET, can provide 5Vin support for 4 3W LED, 8 3W LED and 12Vin support. The brightness of the TPS61500 can be adjusted, and the efficiency of 93%; a wide range of input power supply voltage can support 12V or 15V Industrial Rail, and provides up to 1A output current. Using HTSSOP package to achieve the best cooling performance.

TPS61175 has a wide input voltage range from 2.9V to 18V, MOSFET 3.0A/40V current switch, and 200kHz to 2.2MHz wide switching frequency range. The application of TPS61175 can support industrial application driven by 12V and 15V bus system or battery power supply; the construction of a small internal compensation circuit, providing a variety of flexible configuration, can meet the needs of boosting, SEPIC and flyback converter with different application requirements; and provide different options for the design efficiency, minimum solution size and specific frequency range etc..

TPS62110 with 3.1V ~ 17V can adjust the input voltage, maximum output current 1.2V ~ 15V adjustable output voltage, 1.5A; the highest efficiency of 95%, the static current of 20uA, the power down mode is 2uA, the switching frequency is 1MHz; power to provide good condition indication and low battery detection, soft start limits inrush current other functions.

TPS62110 can fill the gap between portable low power applications DC/DC converter and industrial application of high power DC/DC SWIFT converter; as the support of new lighting technology LED drive, can save about 90% of energy, and the lighting device lifetime is prolonged by 8 times; solid line rail support 12V or 15V and different number of batteries. Small QFN packages and small external inductors (6.8uH) help reduce overall solution size.

In addition, these energy-saving products with a variety of functions, can be widely used in signs, environmental lighting, office lighting, general lighting, military, medical and sensor and other LED applications. TPS61500, TPS61175 and TPS62110 are now in mass production.