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 reliable performance over a wide operating range due to its 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 switchable by either North or South pole magnetic fields. The output switches 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 |
| Electrical Characteristics (@TA = +25C, VDD = 3V, unless otherwise specified.) | |||||
| Output On Voltage (VOUT_ON) | IOUT = 1mA | 0.1 | 0.3 | V | |
| Output Leakage Current (IOFF) | VOUT = 5.5V, Output off | < 0.1 | 1 | A | |
| Supply Current During 'awake' period (IDD(awake)) | TA = +25C, VDD = 3V | 3 | 6 | mA | |
| Supply Current During 'awake' period (IDD(awake)) | TA = -40C to +85C, VDD = 2.5V to 5.5V | 3 | 12 | mA | |
| Supply Current During 'sleep' period (IDD(sleep)) | TA = +25C, VDD = 3V | 5 | 10 | A | |
| Supply Current During 'sleep' period (IDD(sleep)) | TA = -40C to +85C, VDD = 2.5V to 5.5V | 28 | A | ||
| Average Supply Current (IDD(avg)) | TA = +25C, VDD = 3V | 8 | 16 | A | |
| Average Supply Current (IDD(avg)) | TA = -40C to +85C, VDD = 2.5V to 5.5V | 40 | A | ||
| Awake Time (tAWAKE) | (Note 8) | 75 | 125 | s | |
| Period (tPERIOD) | (Note 8) | 75 | 125 | ms | |
| Duty Cycle (D.C.) | 0.1 | % | |||
| Magnetic Characteristics (@TA = -40C to +85C, VDD = 2.5V to 5.5V, unless otherwise specified.) (1mT=10 Gauss) | |||||
| Operation Point (Bops) (south pole to part marking side) | 20 | 40 | 60 | Gauss | |
| Operation Point (Bopn) (north pole to part marking side) | -60 | -40 | -20 | Gauss | |
| Release Point (Brps) (south pole to part marking side) | 10 | 30 | 50 | Gauss | |
| Release Point (Brpn) (north pole to part marking side) | -50 | -30 | -10 | Gauss | |
| Hysteresis (|Bopx|-|Brpx|) (Bhy) | (Note 11) | 5 | 10 | Gauss | |
| Absolute Maximum Ratings (Note 6) (@TA = +25C, unless otherwise specified.) | |||||
| Supply Voltage (VDD) | (Note 7) | 7 | V | ||
| Output Pin Voltage (VOUT) | (Note 7) | 7 | V | ||
| Reverse Supply Voltage (VDD_REV) | -0.3 | V | |||
| Reverse Output Pin Voltage (VOUT_REV) | -0.3 | V | |||
| Output Current (IOUTPUT) (Source And Sink) | 2.5 | mA | |||
| Package Power Dissipation (PD) | SC59 and SOT553 | 230 | mW | ||
| Package Power Dissipation (PD) | SIP-3 (Ammo Pack) and SIP-3 (Bulk Pack) | 230 | mW | ||
| Storage Temperature Range (TS) | -65 | +150 | C | ||
| Maximum Junction Temperature (TJ) | +150 | C | |||
| ESD HBM Human Body Model ESD Capability | 6 | kV | |||
| Recommended Operating Conditions (@TA = +25C, unless otherwise specified.) | |||||
| Supply Voltage (VDD) | Operating | 2.5 | 5.5 | V | |
| Maximum Output Pin Voltage (VOUT_MAX) | Operating | 5.5 | V | ||
| Operating Temperature Range (TA) | Operating | -40 | +85 | C | |
2412251151_DIODES-AH1808-P-B_C842168.pdf
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