IS31FL3239
DESCRIPTION
The IS31FL3239 is an LED driver with 24 constant current channels. Each channel can be pulse width modulated (PWM) by 16 bits for smooth LED brightness control. In addition, each channel has an 8-bit output current control register which allows fine tuning the current for rich RGB color mixing, e.g., a pure white color LED application. The maximum output current of each channel is 38m A, which can be adjusted by one 8-bit global control register. Proprietary programmable technology is used to minimize audible noise caused by MLCC decoupling capacitors. All registers can be programmed via a high speed I2C (1MHz). The IS31FL3239 can be shut down with minimum current consumption by either pulling the SDB pin low or by using the software shutdown feature
. The IS31FL3239 is available in QFN-32 (4mm×4mm) package. It operates from 2.7V to 5.5V over the temperature range of -40°C to +125°C.
TYPICAL APPLICATION CIRCUIT
August 2019
FEATURES
- 2.7V to 5.5V VCC supply
- 1MHz I2C...
