A4963
Overview
The A4963 is a three-phase, sensorless, brushless DC (BLDC) motor controller for use with external complementary P-channel and N-channel power MOSFETs. The A4963 can be used as a stand-alone controller communicating directly with an electronic control unit (ECU) or it can be used in a close-coupled system with a local microcontroller (MCU).
- Three-phase sensorless BLDC motor control FET driver
- Logic level P-N gate drive (P high-side, N low-side)
- 4.2 to 50 V supply range
- Simple block commutation for maximum torque
- Sensorless (bemf sensing) startup and commutation
- Programmable operating modes: □ Integrated speed control □ PWM duty cycle control □ Current mode control
- Cross-conduction prevention
- Wide speed range capability
- Peak current limiting
- Single low-frequency PWM control input
