Hall Effect switch DIODES AH1809-P-A designed for omnipolar magnetic field detection in industrial
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 reliable performance over a wide operating range due to its two Hall Effect plates and chopper-stabilized architecture. Optimized for low power consumption, it operates from 2.5V to 5.5V and draws 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)
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 |
| Operation Point (Bops, south pole) | TA = +25C | 100 | 130 | 165 | Gauss |
| Operation Point (Bopn, north pole) | TA = +25C | -165 | -130 | -100 | Gauss |
| Release Point (Brps, south pole) | TA = +25C | 90 | 115 | 150 | Gauss |
| Release Point (Brpn, north pole) | TA = +25C | -150 | -115 | -90 | Gauss |
| Hysteresis (|Bopx|-|Brpx|) | TA = +25C | 10 | 15 | 20 | Gauss |
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