EVQ7224-QJ-00A

The EVQ7224-QJ-00A evaluation board is designed to demonstrate the capabilities of the MPQ7224-AEC1, a 16-channel, current sink LED driver. Each channel can achieve up to 200mA of current, and 16 ICs can be cascaded together to create a 256-channel solution.

The MPQ7224-AEC1 is optimized for animated or dynamic lighting applications. The device employs a 12-bit pulse-width modulation (PWM) dimming register and a 6-bit analog dimming register per channel, allowing for individual control of each channel.

For proper sequencing in animated applications, the MPQ7224-AEC1 outputs a signal to delay the start-up of one or more ICs via the READYOUT pin.

The MPQ7224-AEC1 provides adaptive feedback control (AFC) to maximize system efficiency. The pre-regulator’s (e.g. buck voltage regulator) output voltage (V_OUT) can adjust in real time to keep a constant 300mV minimum headroom voltage across channels.

The MPQ7224-AEC1 can aid system design for functional safety via the failsafe (FS) indicator. Full protection features include LED open and short protection, ISET pin open and short protection, and thermal shutdown. If a fault condition occurs, then the fault indicator is pulled low.

The MPQ7224-AEC1 is available in a QFN-32 (5mmx6mm) package with wettable flanks, and is available in AEC-Q100 Grade 1.