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indie Semiconductor iND83212 Three-Way RGB LED Driver IC is an automotive-grade device with an integrated 32-bit Arm® Cortex® M0 processor, 64kB of Flash, and 16kB of SRAM, creating a single-chip solution for interior lighting systems. The IC includes a flexible power management system, 3x open-drain LED I/O drivers running up to VBAT with programmable current, 16-bit PWM, monitoring features, and external interfaces. Designed to be connected directly to the automotive supply, the iND83212 withstands a 45V load dump from the car battery. An integrated power management unit implements two on-chip voltage regulators, with one of them requiring an external capacitor.
The three LED drivers each offer a maximum of 60mA constant current with 100µA steps at high voltage (up to VBAT). An integrated temperature sensor ensures the chip does not exceed specifications. Four integrated GPIOs expand functionality and flexibility, making the IC suitable for general-purpose microcontroller applications. For lighting applications, the GPIO enables time multiplexing to increase the number of driven RGB LEDs when combined with the 3x high-voltage open-drain IOs used for driving the LEDs.
A LIN slave transceiver/controller (version 2.2) addresses communication with the ECU, and an integrated 10-bit ADC is used for monitoring purposes. The indie Semiconductor iND83212 RGB LED Driver IC is a cost-effective solution, ideally suited for applications that do not require LIN auto-addressing.
