TI boost controller drives industrial lighting innovation

The TPS40211 efficiently drives high-power LEDs when the input voltage is less than the voltage to turn on the LEDs. The LED driver is designed to power multiple 1- to 5-W high-brightness LEDs in a series, and features a programmable closed soft start, over current protection with automatic retry and a programmable oscillator frequency. The device’s fixed frequency current mode control provides improved transient response and simplified loop compensation. Designers have the flexibility to use the TPS40211 for boost, flyback, SEPIC and various LED driver topologies.

TI features lighting technology advancements at Light+Building TI is featuring a variety of product demonstrations at the Light+Building conference this week in the LLFY booth, including a lighting driver with the TPS40211 device, a brightness control application and an inverter implementation. Three TPS62260 2.25 MHz 600 mA buck converters power a RGB color-mixing demonstration, featuring 252 color values, provides color adjust through an incremental decoder; an LED driver demonstration features TI’s TCA6507 seven-channel, I2C LED blinker and dimmer, 16-step intensity control and easy control with a parallel port-to-PC interface. The TLC5940 16-channel driver IC is featured in an LED video wall driver demonstration with 12-bit grayscale PWM (pulse width modulation) control, 6-bit dot correction and driver capability of 120 mA per channel.