DESCRIPTION
The maximum current of each channel is up to 50mA (VIN ≥ 4.5V). The device integrates an I2C interface with up to 10 configurable I2C addresses via an external resistor. This means the MP3326 can support up to 10 cascaded ICs to drive the LED array. Each channel can be enabled or disabled through the I2C. The MP3326 employs both separated PWM dimming and analog dimming for each LED channel, as well as 12-bit resolution PWM dimming and 6-bit analog dimming for each channel. To optimize EMI/EMC performance, the LED current ramp rate and phase shift can be configured. The device can output a refresh signal from the RFSH/FLT pin, and the refresh signal frequency can be set by the register. Open-load protection, short protection, and overtemperature protection (OTP) are integrated into the device. The fault indicator pulls low if a protection is triggered, and then the corresponding fault register is set. The MP3326 is available in a QFN-24 (4mmx4mm) package. MP3326 16 Channels,...
Monolithic Power Systems
