BM64070MUV Series
Built-in Speed Control, Sensor-less Three-phase Brushless Motor Pre-driver
Manufacturer: Rohm Semiconductor
Catalog
Built-in Speed Control, Sensor-less Three-phase Brushless Motor Pre-driver
Key Features
• Speed Control on PWM Duty Input, External Output FET Nch+Nch, Built-in Boost Voltage Circuit, Sensor-less Sine Wave Drive, Automatic Lead Angle Control, Dead Time Setting, Current Limit Function, Power Save Function, Direction of Rotation Setting, Short Brake Control, Speed Feedback Control, Able to Set Motor Rotation Speed Table and Various Parameters with the built-in OTP, Built-in Several Protection (Motor Lock Protection [MLP], High Speed Rotation Protection, Over Voltage Lock Out [OVLO], Under Voltage Lock Out [UVLO], Thermal Shutdown [TSD], Over Current Protection [OCP])
Description
AI
BM64070MUV is the pre-driver IC of sine wave drive for three-phase brushless motor driver that supports 48V power supply controlling the motor driver constructed in external FETs. The sensor-less drive that the hall devices for the position sensing are unnecessary is adopted. It has a speed feedback control function, and controls output PWM Duty by adjusting the rotational frequency characteristics for the input PWM signal and the rotational frequency affected from motor.
