MP6543BGL-P

MP6543B family of products are all three phase brushless DC motor drivers. They integrate three half-bridges, consisting of six N channel power MOSFETs, along with predrivers, gate drive power supplies and current sense amplifiers. The MP6543B has ENABLE and PWM inputs for each ½-H-bridge. The MP6543 is able to deliver up 2A continuously (depending on thermal and PCB conditions), with the adjustable over-current protection threshold. It uses an internal charge pump to generate the gate drive supply voltage for the high-side MOSFETs, and a trickle charge circuit to maintain sufficient gate drive voltage to operate at 100% duty cycle. Internal safety features include thermal shutdown, undervoltage lockout (UVLO) and overcurrent protection (OCP). The MP6543B is available in a 24-pin, 3mmx4mm QFN package with an exposed thermal pad.

• Hall-signal inputs
• 3V to 12V operating supply voltage
• Three integrated half bridge drivers
• MOSFET on resistance of 110mohm per FET
• Built-in 3.3V, 100mA LDO regulator
• Internal charge pump supports 100% duty cycle operation
• Automatic synchronous rectification
• Integrated bidirectional current sense amplifiers

Notes

MPS part numbers ending in "-P" and "-Z" are the same parts. P & Z only indicates reel size.