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Hall effect latch IC DIODES AH3777-SA-7 optimized for wide supply voltage range and sensor performance

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Hall effect latch IC DIODES AH3777-SA-7 optimized for wide supply voltage range and sensor performance

Current - Supply : 3mA

Operating Temperature : -40℃~+125℃

Voltage - Supply : 3V~28V

Magnetic Field Range : ±17mT

Description : SOT-23 Linear, Compass (ICs) RoHS

Mfr. Part # : AH3777-SA-7

Model Number : AH3777-SA-7

Package : SOT-23

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Product Overview

The AH3777 is a high voltage, low sensitivity Hall effect latch IC designed for commutation of brushless DC motors, flow meters, linear encoders, and position sensors in industrial and consumer home appliance 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-compensated operation. The device includes reverse blocking diode and Zener clamp on the supply, and overcurrent limit and Zener clamp on the output for robustness. The single, open-drain output latches on with a South pole and off with a North pole of sufficient strength.

Product Attributes

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

Technical Specifications

Characteristic	Value	Unit	Conditions
Supply Voltage (VDD)	3.0 to 28	V	Operating
Operating Temperature Range	-40 to +125	C	Operating
Output On Voltage (VOUT_ON)	- to 0.4	V	IOUT = 20mA, B > Bop
Output Leakage Current (IOUT_OFF)	- to 10	A	VOUT = 28V, B < Brp, Output off
Supply Current (IDD)	- to 4	mA	Output open, TA = -40C to +125C
Device Start-Up Time (tST)	10	s	VDD >= 3V, B > Bop
Chopping Frequency (fc)	800	kHz	VDD = 3V to 28V
Output Current Limit (IOCL)	30 to 55	mA	B>Bop
Zener Clamp Voltage (VZ)	28	V	IDD = 5mA
Operation Point (Bop)	110 to 170	Gauss	TA = -40C to +125C
Release Point (Brp)	-170 to -110	Gauss	TA = -40C to +125C
Hysteresis (Bhy)	220 to 340	Gauss	TA = -40C to +125C

2210281000_DIODES-AH3777-SA-7_C842139.pdf

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