The EVQ7228-QJ-00A is an evaluation board designed to demonstrate the capabilities of the MPQ7228-AEC1, a 16-channel, current sink LED driver. Each channel is rated for up to 200mA of current, and 16 ICs can be cascaded together to create a 256-channel solution.
The MPQ7228-AEC1 is optimized for animated or dynamic lighting applications. It employs a 12-bit pulse-width modulation (PWM) dimming and 6-bit analog dimming register per channel, allowing for the individual control of each channel. The MPQ7228-AEC1 provides multi-frame universal asynchronous receiver-transmitter (UART) communication capability with a host microcontroller (MCU).
The MPQ7228-AEC1 provides adaptive feedback control (AFC) to maximize system efficiency. The output voltage (VOUT) of the pre-regulator (e.g. buck voltage regulator) is adjusted in real time so that the voltage across the channels remains constant at the 300mV minimum headroom voltage.
The MPQ7228-AEC1 is available in a QFN-32 (5mmx6mm) package with wettable flanks. The MPQ7228-AEC1 is available in AEC-Q100 Grade 1.
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