TB6633FNG Overview
fPWM ∼− fosc / 128 Low, Open : fPWM ∼− fosc / 256 Example) fPWM ∼− 40 kHz @ fosc = 5.1 MHz Example) fPWM ∼− 20 kHz @ fosc = 5.1 MHz Rotation direction select input (This pin has a pull-down resistor.) I High : Counterclockwise (U → W → V) Low, Open.
TB6633FNG Key Features
- Sensorless drive in three-phase full-wave mode
- PWM chopper control
- Controls the PWM duty cycle based on an analog input (7-bit ADC)
- Output current: IOUT = 0.6 A typ. (1 A max)
- Power supply: VM = 4.5 V to 22 V (25 V max)
- Forward and reverse rotation
- Lead angle control (0°, 15° and 30°)
- Overlapping mutation (120°, 135° and 150°)
- Selectable duty cycle modulation period upon state transitions of phase signals
- Rotation speed detecting signal (FG_OUT)