A89307
A89307 is Automotive FOC BLDC Motor Controller manufactured by Allegro MicroSystems.
Features
AND BENEFITS
- Code-free sensorless field-oriented control (FOC)
- Constant speed, constant torque, constant power, and open-loop operating modes
- I2C interface for speed control and status readback
- Programmable, flexible in-to-output transformer
- Ultra-quiet low speed operation
- Proprietary non-reverse fast startup
- Soft-on soft-off (SOSO) for quiet operation
- Analog / PWM / Clock mode speed control
- Closed-loop speed control
- Configurable current limit
- Windmill startup operation
- Lock detection
- Short-circuit protection (OCP)
- Brake and direction inputs
- Adjustable gate drive
- Automotive AEC-Q100 qualified
APPLICATIONS
- Battery cooling fan
- Radiator fan
- Fuel, oil pump
PACKAGE
Not to scale
28-contact QFN with exposed thermal pad and wettable flank 5 mm × 5 mm × 0.90 mm
(ET package)
DESCRIPTION
The A89307 is a 3-phase, sensorless, brushless DC (BLDC) motor driver (gate driver) that can operate from 5.5 to 50 V.
A field-oriented control (FOC) algorithm is fully integrated to achieve the best efficiency and acoustic noise performance. Constant torque and constant power mode are provided as well as constant speed and open-loop operating modes.
The device also optimizes the motor startup performance in a stationary condition, a windmill condition, and even in a reverse windmill...
