MP6540

The MP6540 and MP6540A are 3-phase, brushless DC motor drivers that integrate three half-bridges consisting of six N-channel power MOSFETs, pre-drivers, gate drive power supplies, and current sense amplifiers.

The MP6540 has enable and PWM inputs for each half-bridge. The MP6540A has separate high-side and low-side inputs; otherwise, both parts are identical. References to the MP6540 in this document also apply to the MP6540A unless otherwise noted.

The MP6540 can deliver up to 10A of peak current for one second and 3A continuously (depending on thermal and PCB conditions). The MP6540 uses an internal charge pump to generate the gate drive supply voltage for the high-side MOSFETs and a trickle charge circuit that maintains sufficient gate drive voltage to operate at 100% duty cycle.

Internal safety features include thermal shutdown, under-voltage lockout (UVLO), and over-current protection (OCP).

The MP6540 is available in a QFN-26 (5.0mmx5.0mm) package.