High-Voltage High-Sensitivity Hall-Effect Omnipolar Switch With Internal Pullup Resistor
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The AH3524A is a high-voltage high-sensitivity Hall-effect Omnipolar switch IC designed for proximity, position and level sensing in industrial and consumer home appliances and personal care applications. To support the wide range of the demanding applications, the design has been optimized to operate over the supply range of 3.0V to 28V. With chopper stabilized architecture and an internal bandgap regulator to provide temperature compensated supply for internal circuits, the AH3524A provides a reliable solution over the whole operating range. For robustness and protection, the device has a reverse blocking diode with a Zener clamp on the supply. The output has an overcurrent limit and a Zener clamp.
The internally pulled-up output can be switched on with either South or North pole of sufficient strength. When the magnetic flux density (B) perpendicular to the package is larger than the operate point (BOP) the output is switched on (pulled low) and is held on until magnetic flux density B is lower than the release point (BRP).
Compliance(Only Automotive supports PPAP) | Standard |
---|---|
AEC Qualified | No |
Type | Omnipolar |
Outputs | Single |
Output Type | Pull-Up Resistor |
Active Output State (B > Bop) | Low |
Inactive Output State (B < Brp) | High |
Key Feature | Resistant to Physical Stress |
Operating Voltage (V) | 3 to 28 |
Average Supply Current (mA) | 3 |
Min Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) | 20 |
Typ Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) | 40 |
Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) | 60 |
Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) | 10 |
Typ Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) | 25 |
Max Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) | 45 |
Output Current Capability (mA) | 30 |
Operating Ambient Temperature (°C) | -40 to 125 |