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Specifications
Operating Current:
3mA
Operation Points:
±6mT
Release Points:
±1mT
Operating Temperature:
-40℃~+125℃
Voltage - Supply:
3V~28V
Mfr. Part #:
AH3574-SA-7
Package:
SOT-23
Key Attributes
Model Number:
AH3574-SA-7
Product Description
AH3574 High Voltage High Sensitivity Hall Effect Omnipolar Switch
The AH3574 is a high voltage, high sensitivity Hall Effect Omnipolar switch IC designed for proximity, position, and level sensing applications. Optimized for a wide supply range of 3.0V to 28V, it offers superior temperature stability and minimal switch point drift due to its chopper-stabilized architecture and internal bandgap regulator. The device features robust protection with a reverse blocking diode, Zener clamps on supply and output pins, and an over-current limit on the output. Its open-drain output can be activated by either the South or North pole of a magnet.
Product Attributes
- Brand: Diodes Incorporated
- Origin: Not specified
- Material: Not specified
- Color: Not specified
- Certifications: Totally Lead-Free & Fully RoHS Compliant, Halogen and Antimony Free (Green Device)
Technical Specifications
| Parameter | Condition | Min | Typ | Max | Unit |
| Electrical Characteristics | |||||
| Supply Voltage | Operating | 3.0 | - | 28 | V |
| Operating Temperature Range | Operating | -40 | - | +125 | C |
| Output ON Voltage | IOUT = 20mA, B > BOP | - | - | 0.4 | V |
| Output Leakage Current | VOUT = 28V, B < BRP, Output off | - | <0.1 | 10 | A |
| Supply Current | Output Open, TA = +25C | - | 3 | 3.5 | mA |
| Supply Current | Output Open, TA = -40C to +125C | - | - | 4 | mA |
| Reverse Battery Current | VDD = -18V, TA = -40C to +125C | - | -0.01 | 1 | mA |
| Reverse Battery Current | VDD = -28V, TA = -40C to +125C | - | -0.01 | 1.5 | mA |
| Device Power-On Time | VDD >= 3V, B > BOP | - | 10 | - | s |
| Chopping Frequency | - | - | 800 | - | kHz |
| Response Time Delay | - | - | 3.75 | - | s |
| Output Rising Time | RL = 1k, CL = 20pF | - | 0.2 | 1 | s |
| Output Falling Time | RL = 1k, CL = 20pF | - | 0.1 | 1 | s |
| Output Current Limit | B > BOP | 30 | - | 55 | mA |
| Zener Clamp Voltage | IDD = 5mA | 28 | - | - | V |
| Magnetic Characteristics | |||||
| Operation Point (South Pole) | VDD = 12V, TA = +25C | - | 40 | - | Gauss |
| Operation Point (South Pole) | TA = -40C to +125C | 20 | 40 | 60 | Gauss |
| Operation Point (North Pole) | VDD = 12V, TA = +25C | - | -40 | - | Gauss |
| Operation Point (North Pole) | TA = -40C to +125C | -60 | -40 | -20 | Gauss |
| Release Point (South Pole) | VDD = 12V, TA = +25C | - | 25 | - | Gauss |
| Release Point (South Pole) | TA = -40C to +125C | 10 | 25 | 45 | Gauss |
| Release Point (North Pole) | VDD = 12V, TA = +25C | - | -25 | - | Gauss |
| Release Point (North Pole) | TA = -40C to +125C | -45 | -25 | -10 | Gauss |
| Hysteresis | VDD = 12V, TA = +25C | - | 15 | - | Gauss |
| Hysteresis | TA = -40C to +125C | 10 | 15 | 22 | Gauss |
| Absolute Maximum Ratings | |||||
| Supply Voltage | (Note 6) | - | - | 32 | V |
| Reverse Supply Voltage | (Note 6) | - | - | -32 | V |
| Output Off Voltage | (Note 6) | - | - | 32 | V |
| Continuous Output Current | - | - | - | 60 | mA |
| Reverse Output Current | - | - | - | -50 | mA |
| Package Power Dissipation | SIP-3 (Ammo Pack) | - | - | 550 | mW |
| Package Power Dissipation | SIP-3 (Bulk Pack) | - | - | 550 | mW |
| Package Power Dissipation | SOT23 | - | - | 230 | mW |
| Storage Temperature Range | - | -65 | - | +165 | C |
| Maximum Junction Temperature | - | - | - | +150 | C |
| ESD HBM | Withstand - Human Body Model | - | - | 6 | kV |
2108051230_DIODES-AH3574-SA-7_C2152506.pdf
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