AH3572-SA-7 Datasheet Summary

Product Overview

The AH3572-SA-7 is a high voltage, high sensitivity Hall Effect Omnipolar switch IC designed for a wide range of applications, including consumer home appliances, office equipment, smart home devices, and industrial applications. It is optimized for proximity, position, and level sensing tasks.

Features

• Omnipolar Operation: Can be triggered by both North and South poles.
• High Sensitivity: Typical operate point (BOP) and release point (BRP) of ±20G and ±10G.
• Single Open Drain Output: Features overcurrent protection.
• Wide Operating Voltage Range: 3.0V to 28V.
• Chopper Stabilized Design: Ensures superior temperature stability and minimal switch point drift.
• Enhanced Immunity: To stress and good RF noise immunity.
• Reverse Blocking Diode: With Zener clamp on supply and output pins.
• Wide Operating Temperature Range: -40°C to +125°C.
• ESD Protection: HBM > 6kV.
• RoHS Compliant: Fully lead-free and halogen-free, antimony-free "Green" device.
• Industry Standard Packages: SOT23 and SIP-3 (Ammo Pack), SIP-3 (Bulk Pack).

Pin Configuration

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Electrical Characteristics

Absolute Maximum Ratings (@TA = +25°C)

• Supply Voltage (VDD): 32V
• Reverse Supply Voltage (VDDR): -32V
• Output Off Voltage (VOUT_MAX): 32V
• Continuous Output Current (IOUT): 60mA
• Reverse Output Current (IOUT_R): -50mA
• Magnetic Flux Density (B): Unlimited
• Package Power Dissipation (PD): 550mW (SIP-3), 230mW (SOT23)
• Storage Temperature Range (TS): -65°C to +165°C
• Maximum Junction Temperature (TJ): +150°C
• ESD HBM: 6kV

Recommended Operating Conditions (@TA = -40°C to +125°C)

• Supply Voltage (VDD): 3.0V to 28V
• Operating Temperature Range (TA): -40°C to +125°C

Electrical Characteristics (@TA = -40°C to +125°C, VDD = 3V to 28V)

• Output ON Voltage (VOUT_ON): 0.2V (Typ) to 0.4V (Max) @ IOUT = 20mA, B > BOP
• Output Leakage Current (ILKG): <0.1µA (Typ) to 10µA (Max) @ VOUT = 28V, B < BRP, Output off
• Supply Current (IDD): 3mA (Typ) to 3.5mA (Max) @ Output open, TA = +25°C
• Reverse Battery Current (IDD_R): 0.01mA (Typ) to 1mA (Max) @ VDD = -18V, TA = -40°C to +125°C

Magnetic Characteristics

• Operation Point (BOP): ±20G (Typ) @ VDD = 12V, TA = +25°C
• Release Point (BRP): ±10G (Typ) @ VDD = 12V, TA = +25°C
• Hysteresis (BHY): 10G (Typ) @ VDD = 12V, TA = +25°C

Applications

• Position and Proximity Sensing: In consumer home appliances, building automation, office equipment, and industrial applications.
• Open and Close Detection: For doors, windows, etc.
• Level Detection: For liquid level sensing.
• Flow Meters: For measuring fluid flow.
• Contact-Less Switches: For non-contact switching applications.

Ordering Information

• Package Type: SOT23
• Ordering Code: AH3572-SA-7
• Packaging: 3000/Tape & Reel

Marking Information

• Package Type: SOT23
• Identification Code: Z7
• Marking Format: XX (Identification Code) Y (Year) WW (Week) X (Internal Code)

Package Outline Dimensions

SOT23 Package Dimensions

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