MP3324GRE Datasheet PDF | Monolithic Power Systems

Monolithic Power Systems MP3324GRE

The MP3324 is an 8-channel white LED (WLED) driver that operates from a wide 4V to 16V input voltage (VIN) range. The MP3324 applies eight internal current sources in each LED string terminal. The LED current (ILED) of each channel is set by an external current-setting resistor.

Part No.	MP3324GRE
Datasheet	MP3324GRE Download
Manufacturer	Monolithic Power Systems
Description	8-Channel 100mA/Ch LED Driver
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DESCRIPTION

Each channel has a 100mA maximum current (while VIN ≥ 4.5V). The device integrates an I2C interface. There are ten different I2C addresses that can be configured via an external resistor. This means the MP3324 can support up to ten ICs that have been cascaded to drive an LED array. Each channel can be enabled or disabled via the I2C. The MP3324 employs both separated pulsewidth modulation (PWM) dimming and analog dimming for each LED channel, with a 12-bit PWM dimming resolution and 6-bit analog dimming per channel. The ILED ramping rate and phase shift can be configured to reduce EMI and EMC. The MP3324 can output a refresh signal from the RFSH/FLT pin. The refresh signal frequency (fREFRESH) can be set via the I2C. Full protections features include LED open-load protection (OLP), LED short-load protection (SLP), and over-temperature protection (OTP). The device also features fault indication. If a protection function is triggered, then the RFSH/FLT pin is pulled low, and the corresponding fault register is set.