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Integrated Hall Effect Latch Sensor DIODES AH374-W-7 for Brushless DC Motor Commutation Applications

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Integrated Hall Effect Latch Sensor DIODES AH374-W-7 for Brushless DC Motor Commutation Applications

Operation Points : 5mT

Release Points : -5mT

Operating Temperature : -40℃~+125℃

Voltage - Supply : 2.2V~20V

Description : SC-59 Switches (Solid State) RoHS

Mfr. Part # : AH374-W-7

Model Number : AH374-W-7

Package : SC-59

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AH374 Single Phase Hall Effect Latch

The AH374 is an integrated Hall-Effect latched sensor designed for electronic commutation of brush-less DC motor applications. It features an on-chip Hall voltage generator, a comparator for Hall voltage amplification, and a Schmitt trigger for noise rejection. The device provides an open-drain output and operates over a wide supply voltage range with temperature compensation. When magnetic flux density exceeds the operate point (BOP), the output is switched on (pulled low). The output remains on until the magnetic flux density reversal falls below the release point (BRP), at which time the output switches off. The AH374 is suitable for applications such as brush-less DC motors, brush-less DC fans, revolution counting, and speed measurement.

Product Attributes

Brand: Diodes Incorporated
Certifications: Totally Lead-Free & Fully RoHS Compliant, Halogen and Antimony Free (Green Device)

Technical Specifications

Characteristic	Value	Unit	Condition
Operating Supply Voltage	2.2 to 20	V	Operating
Operating Temperature Range	-40 to +125	C	Operating
Output On Voltage		mV	IOUT = 20mA
Supply Current		mA	B < BRP
Output Leakage Current	< 0.1	A	Output off
Operation Point (BOP)	5 to 60	Gauss	TA = +25C, VDD = 2.5V to 20V
Release Point (BRP)	-60 to -5	Gauss	TA = +25C, VDD = 2.5V to 20V
Hysteresis (BHY)		60
Output Sink Capability	25	mA
Package Power Dissipation (SIP-3)	550	mW	@TA = +25C
Package Power Dissipation (SC59, SOT23)	230	mW	@TA = +25C

1811061517_DIODES-AH374-W-7_C211384.pdf

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