Product Overview
The AH1381/AH1382/AH1383 is an ultra-low power digital Unipolar Hall-effect switch IC designed for battery-powered consumer products, meters, smoke detectors, and IoT devices. Its hibernating clocking system achieves an average supply current of 1.6A at 3V. The wide supply voltage range (1.6V to 5.5V) enhances battery life and supports low-voltage microcontrollers. Featuring a chopper-stabilized design for superior temperature and supply voltage stability, and high ESD protection up to 8kV, this device offers robust performance. The output activates with a south pole magnetic field and remains on until the field strength drops below the release point.
Product Attributes
- Brand: Diodes Incorporated
- Operation: Unipolar (South Pole)
- Material: Totally Lead-Free & Fully RoHS Compliant, Halogen and Antimony Free ("Green" Device)
- Certifications: RoHS, RoHS 2, RoHS 3
Technical Specifications
| Part Number | Supply Voltage (VDD) | Operating Temperature | Average Supply Current (IDD(AVG)) | Output Low Voltage (VOL) | Output High Voltage (VOH) | ESD Capability (HBM) |
| AH1381/AH1382/AH1383 | 1.6V to 5.5V | -40C to +85C | 1.6A to 9A | 0.15V to 0.25V (at IOUT=1mA) | VDD-0.25V to VDD-0.15V (at IOUT=-1mA) | 8kV |
Magnetic Characteristics
| Part Number | Parameter | Condition | Min | Typ | Max | Unit |
| AH1381 | BOPS (South Pole to Part Marking Side) | TA = +25C | 10 | 18 | 26 | Gauss |
| BRPS (South Pole to Part Marking Side) | TA = +25C | 3 | 11 | 19 | Gauss |
| BHY (Hysteresis) | - | 2 | 7 | - | Gauss |
| AH1382 | BOPS (South Pole to Part Marking Side) | TA = +25C | 22 | 30 | 38 | Gauss |
| BRPS (South Pole to Part Marking Side) | TA = +25C | 12 | 20 | 30 | Gauss |
| BHY (Hysteresis) | - | 2 | 10 | - | Gauss |
| AH1383 | BOPS (South Pole to Part Marking Side) | TA = +25C | 35 | 45 | 55 | Gauss |
| BRPS (South Pole to Part Marking Side) | TA = +25C | 25 | 35 | 45 | Gauss |
| BHY (Hysteresis) | - | 2 | 10 | - | Gauss |
Packages and Pin Assignments
| Package Type | Pin 1 | Pin 2 | Pin 3 | Pin 4 |
| SOT23 (Type S) | VDD | OUTPUT | GND | - |
| X2-DFN1410-4 | VDD | GND | NC | OUTPUT |
| X2-DFN1010-4 (Type B) | VDD | GND | NC | OUTPUT |
