OH137A0 switch equivalent, bipolar hall switch.
* 4.5V to 24V DC operation voltage
* Open-Collector pre-driver
* 25mA maximum sinking output current.
* Reverse Polarity Protection
3. Applications
* .
* Position detection
* Flow measurement
* CPU FAN
4. Functional Block Diagram
Pin1.VCC REG
AMP
Pin3.Vout P.
OH137A0, OH17 bipolar IC response to an N/S alternative magnetic field. Each device includes an onchip Hall voltage generator for magnetic sensing, an amplifier that amplifies the Hall voltage, a Schmitt trigger to provide switching hysteresis for no.
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