proximity Hall Effect sensor DIODES AH3372-P-B with reverse blocking diode and Zener clamp protection
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Product Description
Product Overview
The AH3372 is a high voltage, high sensitivity Hall Effect Unipolar switch IC designed for proximity, position, and level sensing in industrial and consumer home appliances and personal care applications. It operates over a wide supply range of 3.0V to 28V and features a chopper-stabilized architecture for temperature compensation and reliability. The device includes protection features such as a reverse blocking diode, Zener clamps, and over-current limits on the output. The single open-drain output switches on with a South pole of sufficient strength and remains on until the magnetic flux density drops below the release point.
Product Attributes
- Brand: Diodes Incorporated
- Certifications: Totally Lead-Free & Fully RoHS Compliant, Halogen and Antimony Free (Green Device)
Technical Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
| Absolute Maximum Ratings | |||||
| Supply Voltage (VDD) | (Note 6) | 32 | V | ||
| Reverse Supply Voltage (VDDR) | (Note 6) | -32 | V | ||
| Output Off Voltage (VOUT_MAX) | (Note 6) | 32 | V | ||
| Continuous Output Current (IOUT) | 60 | mA | |||
| Reverse Output Current (IOUT_R) | -50 | mA | |||
| Package Power Dissipation (PD) | SIP-3 | 550 | mW | ||
| Package Power Dissipation (PD) | SC59, SOT23 | 230 | mW | ||
| Storage Temperature Range (Ts) | -65 | +165 | C | ||
| Maximum Junction Temperature (TJ) | +150 | C | |||
| ESD HBM | 6 | kV | |||
| Recommended Operating Conditions | |||||
| Supply Voltage (VDD) | Operating | 3.0 | 28 | V | |
| Operating Temperature Range (TA) | Operating | -40 | +125 | C | |
| Electrical Characteristics | |||||
| Output ON Voltage (VOUT_ON) | IOUT = 20mA, B > BOP | -0.2 | 0.4 | V | |
| Output Leakage Current (ILKG) | VOUT = 28V, B < BRP, Output off | <0.1 | 10 | A | |
| Supply Current (IDD) | Output open, TA = +25C | 3 | 3.5 | mA | |
| Supply Current (IDD) | Output open, TA = -40C to +125C | 4 | mA | ||
| Reverse Battery Current (IDD_R) | VDD = -18V, TA = -40C to +125C | -0.01 | 1 | mA | |
| Device Power-On Time (tP_ON) | VDD >= 3V, B > BOP (Note 7) | 10 | s | ||
| Chopping Frequency (fC) | 800 | kHz | |||
| Response Time Delay (tD) | (Note 9) | 3.75 | s | ||
| Output Rising Time (tR) | RL = 1k, CL = 20pF | 0.2 | 1 | s | |
| Output Falling Time (tF) | RL = 1k, CL = 20pF | 0.1 | 1 | s | |
| Output Current Limit (IOCL) | B > BOP, (Note 10 ) | 30 | 55 | mA | |
| Zener Clamp Voltage (VZ) | IDD = 5mA | 28 | V | ||
| Magnetic Characteristics | |||||
| Operation Point (BOPS) | VDD = 12V, TA = +25C | 30 | Gauss | ||
| Operation Point (BOPS) | TA = -40C to +125C | 15 | 30 | 45 | Gauss |
| Release Point (BRPS) | VDD = 12V, TA = +25C | -20 | Gauss | ||
| Release Point (BRPS) | TA = -40C to +125C | 5 | 20 | 35 | Gauss |
| Hysteresis (BHY) | VDD = 12V, TA = +25C | 10 | Gauss | ||
| Hysteresis (BHY) | TA = -40C to +125C | 5 | 10 | 17 | Gauss |
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