AH175-PG-A-B

AH175-PG-A-B is a single-digital-output bipolar hall-effect latch sensor for high-temperature operation. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier to amplify the Hall voltage, and a comparator to provide switching hysteresis for noise rejection, and an open-collector output pre-driver. An internal band-gap regulator is used to provide temperature-compensated supply voltage for internal circuits and allows a wide operating supply range. When the magnetic flux density (B) is larger than the operating point (Bop), the output is switched on (OUT pin is pulled low). The output state is held on until a magnetic flux density reversal falls below Brp. When B is less than Brp, the output is switched off. Typical applications include rotor position sensing, current switch, encoder, and RPM detection.

• 3.5V to 20V DC operation voltage
• Open collector pre-driver
• 25mA output sink current
• Built-in power reverse protection
• Output saturation voltage is 300mV typ at VCC=12V, OUT ”ON”, IO=10mA, TA=+25°C
• Supply current is 3.5mA typ at VCC=12V, OUT ”OFF”, TA=+25°C
• SIP-3 (ammo pack) package
• Operating temperature range from -40 to +150°C