Monolithic Power Systems (MPS) MP3324 8-Channel White LED Drivers

Monolithic Power Systems (MPS) MP3324 8-Channel White LED (WLED) Drivers operate from 4V to 16V input voltage (V_IN) range. These drivers apply eight internal current sources in each LED string terminal. The LED current of each channel is set by an external current-setting resistor, where each channel has a 100mA maximum current. The MP3324 WLED drivers support up to ten ICs cascaded to drive an LED array. These drivers employ separated Pulse Width Modulation (PWM) dimming and analog dimming for each LED channel.

The MP3324 WLED drivers feature an I²C interface, 80μs phase shift fault indication, LED open protection, LED short protection with configurable threshold, Under-Voltage Lockout (UVLO) protection, and Over-Temperature Protection (OTP). These drivers are ELV directive II compliant and are available in a QFN-24 (4mm x 4mm) package. Typical applications include LED lights, instrument clusters, and general displays.

Features

Wide 4V to 16V input voltage (V_IN) range
8 channels, maximum 100mA per channel (V_IN ≥ 4.5V)
LED current (I_LED) configured via an external resistor
6-bit analog dimming per channel
12-bit PWM dimming per channel
Selectable 220Hz, 250Hz, 280Hz, or 330Hz PWM dimming frequency (f_PWM)
Refresh signal output
I²C interface
10 addresses configurable via an external resistor

Configurable I_LED slew rate
80μs phase shift
Fault indication
LED open protection
LED short protection with configurable threshold
Under-Voltage Lockout (UVLO) protection
Over-Temperature Protection (OTP)
ELV directive II compliant
Available in a QFN-24 (4mm x 4mm) package

Applications

LED lights
Instrument clusters
General displays

Monolithic Power Systems (MPS) MP3324 8-Channel White LED Drivers

Features

Applications

Functional Block Diagram

Application Circuit Diagram

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