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Hall Effect Switch IC DIODES AH1903-FA-7 with Low Average Supply Current and Flexible Mode Selection

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Hall Effect Switch IC DIODES AH1903-FA-7 with Low Average Supply Current and Flexible Mode Selection

Operation Points : 3.3mT

Operating Current : 4.3uA

Release Points : 2.3mT

Operating Temperature : -40℃~+85℃

Voltage - Supply : 1.6V~3.6V

Description : Digital Switch Unipolar Omnipolar Hall Effect DFN1216-4-EP

Mfr. Part # : AH1903-FA-7

Model Number : AH1903-FA-7

Package : DFN1216-4-EP

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Product Overview

The AH1903 is a high-sensitivity, micropower Hall-effect switch IC offering selectable Omnipolar or Unipolar operation. Designed for battery-powered devices and office/home appliances, it features a low average supply current of 4.3A at 1.8V and operates across a wide supply range of 1.6V to 3.6V. Its hibernating clocking system minimizes power consumption, and it is available in a compact X1-DFN1216-4 package. The Unipolar/Omnipolar mode can be selected via the SEL pin, allowing for flexibility in application design without external components.

Product Attributes

Brand: Diodes Incorporated
Product Name: AH1903
Package Type: X1-DFN1216-4
Certifications: Totally Lead-Free & Fully RoHS Compliant, Halogen and Antimony Free (Green Device)
Operating Temperature: -40C to +85C

Technical Specifications

Parameter	Conditions	Min	Typ	Max	Unit
Electrical Characteristics	Output Low Voltage (VOL) @ IOUT = 1mA		0.1	0.2	V
	Output High Voltage (VOH) @ IOUT = -1mA	VDD - 0.2		VDD - 0.1	V
	SEL Low (Omnipolar)	0		0.5	V
	SEL High (Unipolar)	1.4		3.6	V
	Average Supply Current @ VDD = 1.8V	TA = +25C		4.3	8	A
Magnetic Characteristics (Unipolar Operation)	Operation Point (Bops) (South Pole to Part Marking Side)	23	33	47	Gauss
	Release Point (Brps) (South Pole to Part Marking Side)	12	23	35	Gauss
	Hysteresis (Bhy)		10		Gauss
	Conditions	VDD = 1.6V to 3.6V, TA = -40C to +85C
Magnetic Characteristics (Omnipolar Operation)	Operation Point (Bops) (South Pole to Part Marking Side)	23	33	47	Gauss
	Operation Point (Bopn) (North Pole to Part Marking Side)	-47	-33	-23	Gauss
	Release Point (Brps) (South Pole to Part Marking Side)	12	23	35	Gauss
	Release Point (Brpn) (North Pole to Part Marking Side)	-35	-23	-12	Gauss
	Hysteresis (Bhy)		10		Gauss
	Conditions	VDD = 1.6V to 3.6V, TA = -40C to +85C
Absolute Maximum Ratings	Supply Voltage (VDD)			6	V
Recommended Operating Conditions	Supply Voltage (VDD)	1.6		3.6	V

1912111437_DIODES-AH1903-FA-7_C338877.pdf

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