Micropower Omnipolar Hall Effect Switch IC DIODES AH1808-P-A for Portable Battery Powered Equipment
Product Overview
The AH1808 is a high-sensitivity, micropower Omnipolar Hall Effect switch IC designed for portable and battery-powered consumer equipment, home appliances, and industrial applications such as smart-meter magnetic-tamper detection. It offers a reliable solution over the whole operating range with its two sensitive Hall effect plates and chopper stabilized architecture. Optimized for low power consumption (24W at 3V), it operates from 2.5V to 5.5V and features a single open drain output that switches on with either a North or South pole. The output is pulled low when magnetic flux density exceeds the operate point (Bop) and turns off when it drops below the release point (Brp).
Product Attributes
- Brand: Diodes Incorporated
- Certifications: Totally Lead-Free & Fully RoHS Compliant, Halogen and Antimony Free (Green Device)
Technical Specifications
| Characteristic | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (Operating) | 2.5 | 5.5 | V | ||
| Output On Voltage | IOUT = 1mA | 0.1 | 0.3 | V | |
| Output Leakage Current | VOUT = 5.5V, Output off | < 0.1 | 1 | A | |
| Supply Current (Awake) | TA = +25C, VDD = 3V | 3 | 6 | mA | |
| Supply Current (Awake) | TA = -40C to +85C, VDD = 2.5V to 5.5V | 3 | 12 | mA | |
| Supply Current (Sleep) | TA = +25C, VDD = 3V | 5 | 10 | A | |
| Supply Current (Sleep) | TA = -40C to +85C, VDD = 2.5V to 5.5V | 28 | A | ||
| Average Supply Current | TA = +25C, VDD = 3V | 8 | 16 | A | |
| Average Supply Current | TA = -40C to +85C, VDD = 2.5V to 5.5V | 40 | A | ||
| Awake Time | Note 8 | 75 | 125 | s | |
| Period | Note 8 | 75 | 125 | ms | |
| Duty Cycle | 0.1 | % | |||
| Operation Point (South Pole) | 20 | 40 | 60 | Gauss | |
| Operation Point (North Pole) | -60 | -40 | -20 | Gauss | |
| Release Point (South Pole) | 10 | 30 | 50 | Gauss | |
| Release Point (North Pole) | -50 | -30 | -10 | Gauss | |
| Hysteresis | 5 | 10 | Gauss | ||
| Operating Temperature Range | -40 | +85 | C | ||
| ESD (HBM) Capability | 6 | kV |
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