Datasheet > AH1897-FA-7

AH1897-FA-7

更新时间： 2024-02-14 21:25:05

品牌	Logo	应用领域
美台 - DIODES		光电二极管
页数	文件大小	规格书
8页	288K
描述
Analog Circuit, 1 Func, PDSO4, 1.60 X 1.20 MM, GREEN, DFN-4

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AH1897-FA-7 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	1.60 X 1.20 MM, GREEN, DFN-4	Reach Compliance Code：	compliant
HTS代码：	8542.39.00.01	Factory Lead Time：	19 weeks
风险等级：	5.57	模拟集成电路 - 其他类型：	ANALOG CIRCUIT
JESD-30 代码：	R-PDSO-N4	JESD-609代码：	e4
长度：	1.6 mm	湿度敏感等级：	1
功能数量：	1	端子数量：	4
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	HVSON
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	260	座面最大高度：	0.53 mm
最大供电电压 (Vsup)：	3.6 V	最小供电电压 (Vsup)：	1.6 V
标称供电电压 (Vsup)：	3 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	NO LEAD	端子节距：	0.65 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	30
宽度：	1.2 mm	Base Number Matches：	1

AH1897-FA-7 数据手册

AH1897

HIGH SENSITIVITY MICROPOWER

OMNIPLOAR HALL-EFFECT SWITCH

Description

Pin Assignments

The AH1897 is a high sensitivity micropower Omnipolar Hall effect

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

for portable and battery powered equipment such as cellular phones

and portable PCs, the average supply current is only 4.3µA at 1.85V.

To support portable equipment the AH1897 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

AH1897 is available in a small low profile X1-DFN1216-4 package.

(Top View)

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). The output is turned off when

B becomes lower than the release point (Brp). The output will remain

off when there is no magnetic field.

X1-DFN1216-4

Features

Applications



Omnipolar Operation (North or South Pole)

Supply Voltage of 1.6V to 3.6V

Micropower Operation



Cover or Display Switch in Portable PCs

Open and Close Detect for Cellular Phones

Holster or Cover Detect for Cellular Phones and Tablet PCs

Digital Still, Video Cameras and Handheld Gaming Consoles

Contact-Less Switches

Chopper Stabilized Design Provides:

Superior Temperature Stability

Minimal Switch Point Drift

Enhanced Immunity to Physical Stress



No External Pull-up Resistors Required

Good RF Noise Immunity

-40°C to +85°C Operating Temperature

Small Low Profile X1-DFN1216-4 Package

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

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

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/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

Note:

4. C_INis for power stabilization and to strengthen the noise immunity, the recommended capacitance is 100nF typical.

1 of 8

www.diodes.com

August 2013

AH1897

Document number: DS36470 Rev. 1 - 2

12 3 4 5 6 7 8

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