IS32LT3129A - Lumissil

IS32LT3129A TRIPLE CHANNEL LINEAR LED DRIVER

The IS32LT3129A is a programmable triple channel linear current regulator; two channels of up to 150mA each for LED lighting and a single channel of up to 30mA for illuminating switches. The device operates as a fully configurable theatrical dimming LED driver; External resistors will program the current levels as well as the LED fade ON/OFF ramp rate. In .

Features

• Operating voltage range, 5V to 42V
• 1MHz I2C-compatible interface
• Dual channel current sources - Individual programmable current via a single external resistor and I2C - Configurable from 20mA to 150mA
• Single channel 30mA (Max.) current source for switch illumination
• EN input supports either momentary contact or latched switch - Input is debounced and latched - Lower priority than I2C input - Gamma corrected Fade ON/OFF algorithm - Pull down resistors or I2C set independent fade ON and OFF ramp time
• Selectable internal PWM source - Internal 220Hz PWM source with Gamma corrected algo.