Allegro's APS11700 and APS11760 micropower, Hall-effect switch ICs are designed specifically for battery-powered applications in harsh industrial and automotive environments. Automatic power management enables average supply current as low as 6 µA while operating directly from a vehicle battery or other unregulated supplies. The power management happens in the background and is transparent to the host system, making them a drop-in upgrade for existing Hall-effect switches or a solid-state replacement for mechanical microswitches or reed switches.
Features
- Automotive-grade ruggedness and fault tolerance:
- Extended AEC-Q100 qualification
- Internal protection circuits enable 40 V load-dump compliance
- Reverse-battery protection
- Output short-circuit and overvoltage protection
- Operation junction temperature: -40°C to +165°C
- High electromagnetic compatibility (EMC) immunity
- Ultra-low power consumption
- ASIL A functional safety compliance
- Planar and vertical Hall-effect sensor ICs
- 3.3 V to 24 V operation
- Omnipolar and unipolar switch threshold options
- Choice of output polarity
- Open-drain output
- Solid-state reliability
Applications
- Reed switch replacements
- Gear-shift selectors and driver controls (PRNDL)
- Open and close sensors for LCD screens, doors, lids, trunks
- Clutch and brake position sensors
- Lighting actuation slave sensors
- Wiper home and end-position sensors
- End-of-travel and index sensors
- Industrial controls
- White goods
