IS32FL3209 Overview
IS32FL3209 is prised of 18 constant current channels each with independent PWM control, designed for driving LEDs, PWM frequency can be 29kHz (default) or 4kHz. The average LED current of each channel can be changed in 256 steps by changing the PWM duty cycle through an I2C interface. The chip can be turned off by pulling the SDB pin low or by using the software shutdown.
IS32FL3209 Key Features
- 2.7V to 5.5V supply
- Each channel output current up to 78mA
- I2C interface, automatic address increment
- Four selectable I2C addresses
- Internal reset register
- Modulate LED brightness with 256 steps PWM
- Each channel can be controlled independently
- Each channel can be scaled independently by 1
- PWM frequency selectable
- 29kHz (default)