LS7561N Description
The LS7560N/LS7561N are designed to control three or four phase brushless DC motors in a closed or open loop configuration. The IC consists of a decoder which provides proper mutation sequencing, a frequency-to-pulse width converter and error amplifier for closed loop motor speed control, a PWM parator and sawtooth oscillator for external driver power control and a 6V reference generator for supplying power to motor...
LS7561N Key Features
- Open loop motor control
- Tachometer output for closed loop motor control
- Error Amplifier and PWM Speed parator with full accessibility
- High noise immunity Schmitt Triggers on Sensor inputs
- 5.5V Reference Supply for external sensors
- Cycle-by-cycle current sensing
- Static, or current limited dynamic, motor braking
- Output enable delay on speed direction reversal
- Enable input with fault sensing capability
- Fault Indicator output