The EVQ3326-R-00A is an evaluation board designed to demonstrate the capabilities of the MPQ3326, a 16-channel white LED (WLED) driver that can operate from a wide 4V to 16V input voltage range. The MP3326 applies 16 internal current sources in each LED string terminal. Each channel's LED current is set via an external current-setting resistor. The maximum current for each channel is 50mA (V_IN ≥ 4.5V).

The device integrates an I²C interface (with up to ten configurable I²C addresses via an external resistor), which allows the MPQ3326 to support up to ten cascaded ICs to drive an LED array. Each channel can be enabled or disabled via the I²C.

The MPQ3326 employs separated pulse-width modulation (PWM) dimming and analog dimming, as well as 12-bit resolution PWM dimming and 6-bit analog dimming for each channel. The LED current ramp rate and phase shift can be configured to optimize EMI/EMC performance.

The device's RFSH/FLT pin can output a refresh signal. The refresh signal frequency can be set by the register.

Full protection features include LED open protection, LED short protection, and over-temperature protection (OTP). If a fault protection is triggered, then the fault indicator pulls low and the corresponding fault register is set.

The MPQ3326 is AEC-Q100 qualified, and is available in a QFN-24 (4mmx4mm) package.