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 such as smart e-meters. It offers a reliable solution over its operating range due to its two Hall Effect plates and chopper-stabilized architecture. Optimized for battery and low-power applications, it operates from a 2.5V to 5.5V supply and consumes only 24W at 3V. The single open-drain output switches on with either a North or South magnetic pole and turns off when the magnetic flux density falls below the release point. The output remains off in the absence of a magnetic field.
Product Attributes
- Brand: Diodes Incorporated
- Operation: Omnipolar (North or South pole)
- Sensitivity: Low
- Output Type: Single Open Drain
- Power Consumption: Micropower Operation
- Supply Voltage Range: 2.5V to 5.5V
- Temperature Stability: Superior (Chopper Stabilized Design)
- Noise Immunity: Good RF Noise Immunity
- Operating Temperature: -40C to +125C
- ESD Capability: High (6 kV HBM)
- Packages: SC59, SOT553, SIP-3L
- Compliance: Totally Lead-Free & Fully RoHS Compliant, Halogen and Antimony Free (Green Device)
Technical Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
| Electrical Characteristics | |||||
| Supply Voltage (VDD) | Operating | 2.5 | - | 5.5 | V |
| 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) | Note 8 | - | 75 | 125 | s |
| Period (Tperiod) | Note 8 | - | 75 | 125 | ms |
| Magnetic Characteristics | |||||
| 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 |
| Absolute Maximum Ratings | |||||
| 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-3L | - | - | 230 | mW |
| Storage Temperature Range (Ts) | - | -65 | - | +150 | C |
| Maximum Junction Temperature (TJ) | - | - | - | +150 | C |
| ESD Capability (HBM) | Human Body Model | - | - | 6 | kV |
2412251152_DIODES-AH1809-P-B_C842169.pdf
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