Product Overview
The AH1809 is a low sensitivity, micropower Omnipolar Hall Effect switch IC designed for battery-powered consumer products, home appliances, and industrial equipment like smart e-meters. It offers a reliable solution over its operating range due to its dual Hall Effect plates and chopper-stabilized architecture. Optimized for low power consumption, it operates from 2.5V to 5.5V and uses only 24W at 3V. The single open-drain output activates with either a North or South magnetic pole, switching low when magnetic flux density exceeds the operate point (Bop) and turning off when it drops below the release point (Brp). The output remains off in the absence of a magnetic field.
Product Attributes
- Brand: Diodes Incorporated
- Certifications: Totally Lead-Free & Fully RoHS Compliant, Halogen and Antimony Free (Green Device)
- Available Packages: SC59, SOT553, SIP-3L
Technical Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VDD) | Operating | 2.5 | - | 5.5 | V |
| Operating Temperature | - | -40 | - | +125 | C |
| Output On Voltage (VOL) | IOUT = 1mA | - | 0.1 | 0.3 | V |
| Output Leakage Current | VOUT = 5.5V, Output off | - | < 0.1 | 1 | A |
| Supply Current (IDD_awake) | TA = +25C, VDD = 3V | - | 3 | 6 | mA |
| Supply Current (IDD_awake) | TA = -40 to +125C, VDD = 2.5V to 5.5V | - | - | 12 | mA |
| Supply Current (IDD_sleep) | TA = +25C, VDD = 3V | - | 5 | 10 | A |
| Supply Current (IDD_sleep) | TA = -40 to +125C, 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 = -40 to +125C, VDD = 2.5V to 5.5V | - | - | 40 | A |
| Awake Time (Tawake) | - | - | 75 | 125 | s |
| Period (Tperiod) | - | - | 75 | 125 | ms |
| D.C. Duty Cycle | - | - | 0.1 | - | % |
| Operation Point (Bops, South Pole) | TA = +25C | 100 | 130 | 165 | Gauss |
| Operation Point (Bops, South Pole) | TA = -40C to +125C | 90 | 130 | 185 | Gauss |
| Operation Point (Bopn, North Pole) | TA = +25C | -165 | -130 | -100 | Gauss |
| Operation Point (Bopn, North Pole) | TA = -40C to +125C | -185 | -130 | -90 | Gauss |
| Release Point (Brps, South Pole) | TA = +25C | 90 | 115 | 150 | Gauss |
| Release Point (Brps, South Pole) | TA = -40C to +125C | 80 | 115 | 170 | Gauss |
| Release Point (Brpn, North Pole) | TA = +25C | -150 | -115 | -90 | Gauss |
| Release Point (Brpn, North Pole) | TA = -40C to +125C | -170 | -115 | -80 | Gauss |
| Hysteresis (|Bopx|-|Brpx|) | TA = +25C | 10 | 15 | 20 | Gauss |
| Hysteresis (|Bopx|-|Brpx|) | TA = -40C to +125C | 5 | 15 | - | Gauss |
2412251006_DIODES-AH1809-Z-7_C154889.pdf
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