AM4964
Overview
Pin Assignments The AM4964 is highly integrated feature rich single phase Brushless Direct Current (BLDC) full wave motor driver with combined PWM and temperature speed control function for fans, blowers and extractors. For system flexibility, the motor speed can be controlled by an external PWM signal and temperature sensed by Thermal resister at the same time.
- Flexible Speed Control Options
- Combined PWM+Thermistor Speed Control
- PWM Speed Control
- DC Voltage Speed Control
- Adjustable Low and High Temperature Corners
- Full Speed When Thermal Resistor is Shorted
- Adjustable Output Duty Gap between High and Low Temperature when 100% PWM Input
- Built-in oscillator - No external capacitor
- Built-in Minimal Speed Setup Circuit
- Alpha Slope Adjustable
