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Magnetic proximity sensor DIODES AH3372-SA-7 Hall Effect switch IC designed for operation in harsh industrial environments

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Magnetic proximity sensor DIODES AH3372-SA-7 Hall Effect switch IC designed for operation in harsh industrial environments

Operation Points : 3mT

Release Points : 2mT

Operating Temperature : -40℃~+125℃

Voltage - Supply : 3V~28V

Description : SOT-23 Switches (Solid State) RoHS

Mfr. Part # : AH3372-SA-7

Model Number : AH3372-SA-7

Package : SOT-23

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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. Optimized for a wide supply range of 3.0V to 28V, it features a chopper-stabilized architecture and an internal bandgap regulator for temperature compensation, ensuring reliable operation. The device includes reverse blocking diode and Zener clamp on the supply, along with an over-current limit and Zener clamp on the output for robustness. The single open-drain output switches on with a South pole of sufficient strength, remaining on until the magnetic flux density drops below the release point. The magnetic polarity for operation differs between SOT23/SIP-3 and SC59 packages.

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
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 (Ammo/Bulk Pack)			550	mW
Package Power Dissipation (PD)	SC59 and 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
Reverse Battery Current (IDD_R)	VDD = -28V, TA = -40C to +125C	-	-0.01	1.5	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

2005151032_DIODES-AH3372-SA-7_C526357.pdf

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