PT3923
Single coil Hall Driver IC
OVERVIEW
The PT3923 is designed for magnetic actuating using a bipolar magnetic field. The built-in dynamic offset cancellation of pre-amplifier stage achieves optimal symmetrical magnetic sensing. The output driver provides a linear drive to eliminate switching noise. This Hall-effect IC is optimal for DC brushless fan application with speed controllable by PWM input signal. The supply voltage range is from 2.4V to 15V and the output current is 450mA.
FEATURE
- Built-in hall sensor
- Single phase full wave driver
- Soft switching output driver
- Motor locked protection and automatic restart
- Speed controllable by PWM input signal
- FG output
- Built-in hysteresis comparator
- Built-in Zener diode
- High balance and low thermal drift magnetic sensing
- Low power consumption and high driving efficiency
APPLICATIONS
- Single coil DC brushless motor
PACKAGE
- TSOT26F-6pin