Description
The WSH41FC chip combines a Hall sensor, complementary output drivers, and a frequency generator, making it ideal for applications such as speed measurement, revolution counting, positioning, and DC brushless motor control. It features a temperature-compensated voltage regulator, a differential amplifier, a hysteresis controller, and open-collector output drivers that can handle up to 400mA and 10mA current loads respectively. Additionally, an on-chip protection diode is included to protect against reverse power faults. The chip also includes a temperature-dependent bias that adjusts the supply voltage for the hall plates and the switching points for decreasing magnet induction at higher temperatures, resulting in appropriate open collector output switching.
- Operate from 2.8V to 20V supply voltage.
- On-chip Hall sensor.
- Internal bandgap regulator allows temperature compensated operations and a
- wide operating voltage range.
- High output sinking capability up to 400mA for driving large load.
- Lower current change rate reduces the peak output voltages during switching.
- Available in rugged low profile SIP-4L packages.
- Built-in FG output.
- Built-in protection diode for reverse power supply fault
Datasheet
