NRND = Not Recommended for New Design
Alternative Parts: AH3722A, AH3724A
High Temperature High and Medium Sensitivity Hall Effect Latches
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AH173 is a single-digital-output Hall-effect sensor with pull-up resistor for high temperature operation. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier to amplify Hall voltage, and a comparator to provide switching hysteresis for noise rejection, and an output driver with a pull-up resistor (Rpu). An internal band-gap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. While the magnetic flux density (B) is larger than operate point (Bop), the OUT pin turns on (low). If B moves toward release point (Brp), the OUT pin is latched “on” state prior to B < Brp. When B < Brp, the OUT pin goes into “off” state.
Compliance (Only Automotive supports PPAP) | No |
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Average Supply Current (µA) | 3.5 |
Operating Ambient Temperature (°C) | -40 to 125 |
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Max) | 60, 80 |
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Min) | 15, 5 |
Operating Point Bop (Bops +ve/ Bopn -ve) Gauss (Typ) | - |
Operating Voltage (V) | 3 to 20 |
Output Current Capability (mA) | 25 |
Output Type | Single, Internal Pull-Up Resistor, Active Low |
AEC Qualified | No |
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Max) | -15, -5 |
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Min) | -60, -80 |
Release Point Brp (Brps +ve/Brpn -ve) Gauss (Typ) | - |
A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
PCN # | Issue Date | Implementation Date | Subject |
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PCN-2512 | 2021-04-16 | 2021-07-16 | Qualified Additional Assembly & Test (A/T) Site |