Datasheet > AH1902-Z-7

AH1902-Z-7

更新时间： 2024-11-29 01:06:35

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描述
HIGH SENSITIVITY MICROPOWER OMNIPLOAR HALL-EFFECT SWITCH

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AH1902-Z-7 数据手册

AH1902

HIGH SENSITIVITY MICROPOWER

OMNIPLOAR HALL-EFFECT SWITCH

Description

Pin Assignments

The AH1902 is a high-sensitivity micropower Omnipolar Hall effect

switch IC with internal pull up and pull down capability. Designed for

portable and battery powered consumer equipment such as cellular

phones and portable PCs to office equipment, home appliances and

industrial applications, the average supply current is only 4.3μA at

1.8V. To support potable equipment the AH1902 can operate over the

supply range of 1.6V to 3.6V and uses a hibernating clocking system

to minimize the power consumption. To minimize PCB space, the

AH1902 is available in small low profile X1-DFN1216-4,

X2-DFN2015-6 and SOT553 packages.

( Top View )

V_DD

OUTPUT

V_DD

OUTPUT

GND

X2-DFN2015-6

X1-DFN1216-4

( Top View )

GND

OUTPUT

The output is activated with either a north or south pole of sufficient

magnetic field strength. When the magnetic flux density (B)

perpendicular to the package is larger than operate point (Bop), the

output will be turned on (pulled low) and held until B is lower than

release point (Brp).

V_DD

SOT553

Applications

Features



Open and Close Detect for Flip/Slide Cellular Phones



Omnipolar Operation (North or South Pole)

Supply Voltage of 1.6V to 3.6V

High Sensitivity

Smart Cover or Dock Detect for Cellular Phones and Tablet PCs

Cover or Display Switch in Portable PCs (eg: Ultrabook)

Digital Still, Video Cameras and Handheld Gaming Consoles

Door, Lids and Tray Position Switches

Micropower Operation

Chopper Stabilized Design Provides:

Level, Proximity and Position Switches

Superior Temperature Stability

Minimal Switch Point Drift

Contact-Less Switches in Home Appliances and Industrial

Applications

Enhanced Immunity to Physical Stress



No External Pull-up Resistors Required

Good RF Noise Immunity

-40°C to +85°C Operating Temperature

High ESD capability of 8kV (Human Body Model)

Small Low Profile X1-DFN1216-4, X2-DFN2015-6 and SOT553

Packages



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

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

Notes:

1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.

2. See http://www.diodes.com/quality/lead_free.html 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.

Typical Applications Circuit

1.6V to 3.6V

V_DD

OUTPUT

AH1902

C_IN

GND

Note:

4. C_INis for power stabilization and to strengthen the noise immunity, the recommended capacitance is 100nF typical and should be placed as close to

the supply pin as possible.

1 of 11

www.diodes.com

April 2016

AH1902

Document number: DS36533 Rev. 4 - 2

12 3 4 5 6 7...11

中文翻译

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与AH1902-Z-7相关器件

型号	品牌	获取价格	描述	数据表
AH1903	DIODES	获取价格	Selectable Unipolar/Omnipolar Micropower Hall Effect Switch
AH1903-FA-7	DIODES	获取价格	Hall Effect Sensor, 0.9mT Min, 4.8mT Max, 0.2-1.6V, Rectangular, Surface Mount, 1.20 X 1.6
AH1911	DIODES	获取价格	Micropower Omnipolar Hall Effect Switch
AH1912	DIODES	获取价格	Micropower Omnipolar Hall Effect Switch
AH1913	DIODES	获取价格	Micropower Omnipolar Hall Effect Switch
AH1921	DIODES	获取价格	Micropower Omnipolar Hall Effect Switch
AH1925	DIODES	获取价格	Micropower Omnipolar Hall Effect Switch
AH1-G	WJCI	获取价格	High Dynamic Range Amplifier
AH1NAB	CIT	获取价格	CIT SWITCH
AH1NABB	CIT	获取价格	CIT SWITCH

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