Product Overview
The AH3772 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. It operates over a supply range of 3.0V to 28V and features a chopper-stabilized architecture with an internal bandgap regulator for temperature-compensated performance. The device includes protection features such as a reverse-blocking diode with a zener clamp on the supply, and an overcurrent limit and zener clamp on the output. The single open-drain output switches on with a South pole and off with a North pole of sufficient strength.
Product Attributes
- Brand: Diodes Incorporated
- Certifications: Totally Lead-Free & Fully RoHS Compliant, Halogen and Antimony Free (Green Device)
Technical Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
| Operating Voltage Range | 3.0 | 28 | V | ||
| High Sensitivity (Typical) | BOP / BRP | +25 / -25 | G | ||
| Output Type | Single, Open-Drain | ||||
| Output Current Limit | B>BOP | 30 | 55 | mA | |
| Chopping Frequency | VDD >= 3V | 800 | kHz | ||
| Start-Up Time | VDD >= 3V, B > BOP | 10 | s | ||
| Output Rising Time | RL =1k, CL = 20pF | 0.2 | 1 | s | |
| Output Falling Time | RL =1k, CL = 20pF | 0.1 | 1 | s | |
| Operating Temperature Range | -40 | +125 | C | ||
| ESD (HBM) | 6 | kV | |||
| Package Options | SC59, SOT23, SIP-3 | ||||
| Supply Current (Output open, TA = +25C) | 3 | mA | |||
| Supply Current (Output open, TA = -40C to +125C) | 4 | mA | |||
| Operation Point (BOP) | VDD = 12V, TA = +25C | 25 | Gauss | ||
| Release Point (BRP) | VDD = 12V, TA = +25C | -25 | Gauss | ||
| Hysteresis (BHY) | VDD = 12V, TA = +25C | 50 | Gauss |
2210281000_DIODES-AH3772-P-B_C842117.pdf
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