AH1892-CD4-7【PDF 1/11 页】HALL EFFECT SENSOR

收藏本站

您好，
买卖IC网欢迎您。
请登录
免费注册

买卖IC网

Sheet目录60

[1页]2页 3页 4页 5页

AH1892

PROGRAMMABLE MICROPOWER OMNIPOLAR

HALL-EFFECT SENSOR SWITCH

AH1892

Document number: DS35092 Rev. 1 - 2

1 of 11

www.diodes.com

May 2012

?Diodes Incorporated

Description

The AH1892 is a micropower magnetic range selectable (Bop/Brp)

Omnipolar Hall effect switch IC with internal pull up and pull down

capability, designed for consumer equipment ranging from portable

and battery powered cellular phones and portable PCs to home

appliances and industrial applications. To support battery powered

equipment and low voltage microcontrollers, the AH1892 can operate

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

system to minimize the power consumption. The average supply

current is only 4.3礎 typical at 1.80V. Due to the application diversity,

the AH1892 has an 8kV ESD rating on the supply and output pins. To

minimize PCB space the AH1892 is packaged in the small CSP

package (0.71mm x 0.71mm) or SOT553 leaded package

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

magnetic field strength. The user can select one of two magnetic

sensitivity bands via the BSEL pin without the addition of any external

components allowing a flexible but small solution. The band select

can be hardwired or be changed on the fly via a logic source such as

a micro-controller. When the magnetic flux density (B) is larger than

operate point (Bop), the output will be turned on (pulled low) and held

until B is lower than release point (Brp).

Features

" Omnipolar operation (North or South pole)

" Programmable operate and release points

" Supply voltage of 1.6V to 3.6V

" Micropower operation

" Chopper stabilized design

Superior temperature stability

Extremely Low Switch-Point Drift

Insensitive to Physical Stress

" No external pull up resistors required

" Good RF noise immunity

" -40癈 to +85癈 operating temperature

" 8kV ESD on supply and output pins

" Miniature U-WLB07070-4 (CSP 0.71mm x 0.71mm typical) and

small low profile SOT553

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

" Halogen and Antimony Free. Green Device (Note 3)

Pin Assignments

U-WLB0707-4

SOT553

Applications

" Open and close detect for gaming and cellular phones

" Holster and dock detect for cellular phones

" Cover switch in portable and tablet PCs

" Digital still and video cameras

" Tray, door and covers position detect for printers and scanners

" Contact-less switch in consumer and industrial products

Notes:

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

2. See http://www.diodes.com for more information about Diodes Incorporateds 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.

发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购

采购需求

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

我的联系方式