The EVQ6615-QK-00A is an evaluation board designed to demonstrate the capabilities of the MPQ6615-AEC1, an H-bridge DC motor driver. The MPQ6615-AEC1 operates from an input voltage (V_IN) up to 40V. The H-bridge consists of four N-channel power MOSFETs. The internal charge pump generates the gate driver test supply voltages for the high-side MOSFETs (HS-FETs), and a trickle charge circuit maintains sufficient gate driver voltages for 100% duty cycle operation.

The current flowing through the two Sx outputs is sensed via the internal current-sensing circuits. Each phase has an output pin (SOx) that sources or sinks a current proportional to each phase’s output current (I_OUT). Only the current flowing through the low-side MOSFET (LS-FET) is sensed. This current is sensed in both the forward and reverse directions.

Internal safety features include over-current protection (OCP), under-voltage lockout (UVLO) protection, and thermal shutdown. The input control signals for the MPQ6615-AEC1 are applied through the connector on the board.

The MPQ6615-AEC1 is designed to drive brushed DC motors, door lock and latch motors, and seat actuators. The MPQ6615-AEC1 is available in a TQFN-26 (6mmx6mm) package with wettable flanks, and it is AEC-Q100 qualified.