Datasheet > AH1925

AH1925

更新时间： 2024-11-29 14:54:51

品牌	Logo	应用领域
美台 - DIODES		/
页数	文件大小	规格书
9页	589K
描述
Micropower Omnipolar Hall Effect Switch

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AH1925 数据手册

AH1925

ULTRA-LOW POWER DIGITAL OMNIPOLAR

HALL EFFECT SWITCH

Description

Pin Assignments

(Top View)

The AH1925 is an ultra-low power digital and high sensitivity

omnipolar Hall effect switch IC from Diodes Incorporated’s broad Hall

Effect switches family. The sensitive device is designed to meet a

wide range of potential applications with low power requirements

including battery-operated equipment, the average supply current is

only 1.4μA at 1.85V. To support portable equipment the AH1925 can

operate over the supply range of 1.6V to 3.6V and uses a hibernating

clocking system to minimize the power consumption. The high ESD

level up to 8kV helps to improve the system robustness. To minimize

PCB space the AH1925 is available in small low profile X2-DFN1410-

4 package.

VDD

OUTPUT

The single open-drain output can switch on with either a north or

south pole of sufficient strength. When the magnetic flux density (B)

perpendicular to the package is larger than operate point (B_OP) the

output is switched on (pulled low). The output is turned off when

B becomes lower than the release point (B_RP).

GND

X2-DFN1410-4

Features



Omnipolar Operation (North or South Pole)

Supply Voltage of 1.6V to 3.6V

Micropower Operation

Applications

Chopper Stabilized Design Provides:

Superior Temperature Stability

Minimal Switch Point Drift



Smart Cover or Dock Detect for Cellular Phones and Tablet PCs

Gas or Water Consumption Measurement in Remote, Battery-

Operated Utility Meters

Enhanced Immunity to Physical Stress



AH1925 is Open-Drain Output



Medical Devices, IoT Systems

-40°C to +85°C Operating Temperature

Level, Proximity and Position Switches

High ESD Capability of 8kV (Human Body Model)

Small Low Profile, X2-DFN1410-4 Package

Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

Halogen and Antimony Free. “Green” Device (Note 3)

E-Locks, Smoke Detectors, Appliances

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant.

2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and

Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and

<1000ppm antimony compounds.

1 of 9

www.diodes.com

September 2019

AH1925

Document number: DS42243 Rev. 1 - 2

12 3 4 5 6 7...9

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