A89303
A89303 is Three-Phase Sensorless Pump Driver manufactured by Allegro MicroSystems.
Features
AND BENEFITS
- AEC-Q100 qualified
- I2C serial port control
- Fast startup Features
- Trapezoidal drive
- Sensorless (no Hall sensors required)
- Low RDS(ON) power MOSFETs
- FG speed output
- Lock detection
- Soft start
- Overcurrent protection
- Overvoltage protection
- Diagnostic outputs
- Small form factor automotive pump
PACKAGES:
DESCRIPTION
The A89303 three-phase motor driver incorporates sensorless drive intended to drive low power automotive BLDC motors. A trapezoidal drive algorithm is implemented to minimize time to ramp up to maximum speed.
The device can be operated by PWM duty or I2C interface. The I2C serial port can be used to customize the startup and running operation via EEPROM.
The A89303 is available in a 20-lead TSSOP with exposed power pad (suffix LP) and a 32-contact 5 mm × 5 mm QFN with exposed thermal pad and wettable flank (suffix ET).
20-lead TSSOP with
32-contact QFN with exposed thermal pad exposed thermal pad
(LP package) and wettable flank
5 mm × 5 mm × 0.90 mm
Not to scale
(ET package)
0.22 µF/X7R
CP2 CP1
Duty In
Logic...
