Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.
SC59-3D-image.png
Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.
SIP-3-3D-image.png
Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.
SOT23.png27V Open-Drain Hall Effect Latch
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The AH3712 is a high-voltage, high-sensitivity, Hall-effect latch IC designed for commutation of brushless DC motors, flow meters, linear encoders, and position sensors in industrial and consumer home appliances and personal care applications. To support a wide range of demanding applications, the design is optimized to operate over a 3.0V to 27V supply range. With chopper stabilized architecture and an internal bandgap regulator to provide temperature-compensated supply for internal circuits, the AH3712 provides a reliable solution over the whole operating range. The output also has an overcurrent limit.
The single open-drain output can be switched on with a South pole of sufficient strength and switched off with a 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). The output is held and latched until magnetic-flux density reverses and becomes lower than the release point (BRP).
| Compliance(Only Automotive supports PPAP) | Standard |
|---|---|
| AEC Qualified | No |
| Type | Latch |
| Outputs | Single |
| Output Type | Open Drain |
| Active Output State (B > Bop) | Low |
| Inactive Output State (B < Brp) | High-Z |
| Operating Voltage (V) | 3 to 27 |
| Average Supply Current (mA) | 2.8 |
| Min Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) | 10 |
| Typ Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) | 25 |
| Max Operating Point Bop (Bops +ve/ Bopn -ve) (Gauss) | 40 |
| Min Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) | -40 |
| Typ Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) | -25 |
| Max Release Point Brp (Brps +ve/ Brpn -ve) (Gauss) | -10 |
| Output Current Capability (mA) | 50 |
| Operating Ambient Temperature (°C) | -40 to 125 |
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 |
|---|---|---|---|
| PCN-2611 | 2023-04-03 | 2023-07-03 | Qualified Additional Assembly Test Sites, Die Revision and Tape and Reel Packing Quantity. |
