IS32CS8979
DESCRIPTION
IS32CS8979 bines MCU function and 18-channel LED drivers for applications in the automotive environment such as ambient lighting, dome lighting, and other lighting functions.
MCU includes a 1T 8051 core with enhanced DSP function. There are 2KB SRAM and 64KB e-Flash and both have ECC protections for the harsh application environment. There are three watchdog timers each with an independent clock that further enhances the reliable operations of the MCU.
The LED driver consists of 18 high voltage PWM modulated constant current sources with each up to 60m A. It can be used for driving individual LED strings or RGB LEDs. The current source can be controlled globally with 5bit precision. And the 8-bit PWM frequency can be up to 25KHz with spread-spectrum and selectable phase delay for optimal EMI performance. Other features of the LED drivers include blink functions and 8-bit dot correction for each channel for accurate RGB color mixing. It also provides fault detection such...
