IS32LT3129A
DESCRIPTION
The IS32LT3129A is a programmable triple channel linear current regulator; two channels of up to 150m A each for LED lighting and a single channel of up to 30m A 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 additional, the I2C interface supports writing/reading function for MCU to select switch type (momentary contact or latched), individually configure the output current levels and fade on/off ramp rate, or get the state of device and the fault flag of open/short circuit and thermal shutdown.
An integrated debounce and latch circuit on the channel enable pin (EN1/2) is enabled when the device is configured for a momentary contact switch interface. The other option is to configure the EN pins to accept a static level signal for operation with latched switches. If configured for Internal-PWM-Dimming mode, the integrated...
