Automotive Hall Effect Latch IC DIODES AH3762Q-P-A High Voltage High Sensitivity for Motor Control
AH3762Q High-Voltage, High-Sensitivity Automotive Hall-Effect Latch
The AH3762Q is an AEC-Q100 qualified, high-voltage, high-sensitivity Hall-Effect latch IC designed for automotive applications such as brushless DC-motor commutation, speed measurement, and angular or linear encoders and position sensors. It operates over a wide supply range of 3.0V to 28V and features a chopper-stabilized architecture with an internal bandgap regulator for temperature-compensated supply. The device offers robustness with a reverse blocking diode, Zener clamp on the supply, and an overcurrent limit with Zener clamp on the output. The single, open-drain output switches on with a South pole of sufficient strength and switches off with a North pole of sufficient strength. It is designed for reliable operation across the entire operating range, providing superior temperature stability, minimal switch point drift, and enhanced immunity to stress and RF noise.
Product Attributes
- Brand: Diodes Incorporated
- Certifications: AEC-Q100 Grade 0 Qualified, RoHS Compliant, Halogen and Antimony Free ("Green Device")
- Package Options: SC59, SOT23, SIP-3
- Material: Totally Lead-Free
Technical Specifications
| Characteristic | Value | Unit | Conditions |
| Supply Voltage (VDD) | 3.0 to 28 | V | Operating |
| Operating Temperature Range | -40 to +150 | C | Operating |
| High Sensitivity (Typical Bop/Brp) | +25 / -25 | Gauss | TA = +25C, VDD = 12V |
| Hysteresis (Typical Bhy) | 50 | Gauss | TA = +25C, VDD = 12V |
| Output ON Voltage (VOUT_ON) | -0.2 to 0.4 | V | IOUT = 20mA, B > Bop |
| Output Leakage Current (ILKG) | <0.1 to 10 | A | VOUT = 28V, B < Brp, Output off |
| Supply Current (IDD) | 3 to 4 | mA | Output open, TA = +25C / TA = -40 to +150C |
| Reverse Supply Current (IDD_R) | 0.6 to 2500 | A | VDD = -18V to -28V, TA = +25C to +150C |
| Device Power-On Time (tP_ON) | 10 | s | VDD >= 3V, B > Bop |
| Chopping Frequency (fc) | 800 | kHz | VDD >= 3V |
| Response Time Delay (td) | 3.75 | s | Magnetic threshold reached to output start |
| Output Rising Time (tr) | 0.2 to 1 | s | RL = 1k, CL = 20pF |
| Output Falling Time (tf) | 0.1 to 1 | s | RL = 1k, CL = 20pF |
| Output Current Limit (IOCL) | 30 to 55 | mA | B > Bop |
| Zener Clamp Voltage (VZ) | 28 | V | IDD = 5mA |
| ESD Withstand (HBM) | >8 | kV | Human Body Model |
| ESD Withstand (CDM) | >2 | kV | Charged Device Model |
| Continuous Output Current (IOUT) | 60 | mA | |
| Package Power Dissipation (PD) | 230 / 550 | mW | SC59/SOT23 / SIP-3 |
| Storage Temperature Range | -65 to +165 | C | |
| Maximum Junction Temperature (TJ) | +150 | C |
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