AH1802
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR
HALL-EFFECT SENSOR SWITCH
AH1802
Document number: 31170 Rev. 8 - 2
1 of 11
www.diodes.com
December 2010
?Diodes Incorporated
Description
The AH1802 is a ultra-sensitivity, micropower Omnipolar Hall
Effect switch IC designed for portable and battery powered
equipment such as cellular phones, PDAs and portable
PCs. Based on two sensitive Hall Effect plates and
a chopper stabilized architecture the AH1802 provides
a reliable solution over the whole operating range. To support
portable and battery powered equipment the design has been
optimized to operate over the supply range of 2.5V to 5.5V
and consumes only 24uW with a supply of 3V.
The single open drain output can switched on with either a
north or south pole of sufficient strength. When the magnetic
flux density (B) is larger than operate point (Bop) the output is
switched 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.
Pin Assignments
1. Vdd
GND 3.
2. Output
(Top View)
SC59
1. Vdd
2. NC 3. Output
4. NC
6. NC 5. GND
(Top View)
DFN2020-6
1. Vdd
3. Output
3. GND
(Top View)
DFN2020-3
1. Vdd
2. Output
3. GND
(Top View)
DFN2015H4-3
Features
" Omni-polar (north or south pole) operation
" High sensitivity
" Single open drain output
" Micropower operation
" 2.5V to 5.5V operating range
" Chopper stabilized design provides
" Superior temperature stability
" Minimal switch point drift
" Enhanced immunity to stress
" Good RF noise immunity
" -40癈 to 85癈 operating temperature
" ESD 5kV for DFN2020-6, DFN2020-3 and
DFN2015H4-3
ESD 6kV for SC59
" Low profile SC59, DFN2020-6, DFN2020-3 and
DFN2015H4-3 packages
" Green Molding Compound (Note 1)
Applications
" Cover switch in clam-shell or slide type cellular phones
" Display switch for portable PCs
" On/Off switch for PDAs and digital cameras
" Contact-less switch in consumer products
Notes:
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html.
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相关代理商/技术参数
AH1802-SNG-7
功能描述:板机接口霍耳效应/磁性传感器 MICROPW SWCH2.5-5.5V ULT SENSTV OMNIPOLAR RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23
AH1802-WG-7
功能描述:板机接口霍耳效应/磁性传感器 MICROPW SWCH2.5-5.5V ULT SENSTV OMNIPOLAR RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23
AH1803
制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:MICROPOWER, ULTRA-SENSITIVE HALL EFFECT
AH1803_09
制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:MICROPOWER, ULTRA-SENSITIVE HALL EFFECT
AH1803-SNG-7
功能描述:板机接口霍耳效应/磁性传感器 MCROPW SWCH 2.5-5.5V ULTRA SENSITIVE CMOS RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23
AH1803-WG-7
功能描述:板机接口霍耳效应/磁性传感器 MCROPW SWCH 2.5-5.5V ULTRA SENSITIVE CMOS RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23
AH1804
制造商:DIODES 制造商全称:Diodes Incorporated 功能描述:MICROPOWER OMNIPOLAR HALL EFFECT SENSOR SWITCH
AH1804-FA-7
功能描述:板机接口霍耳效应/磁性传感器 Hall Sensor RoHS:否 制造商:Honeywell 类型:Bipolar Hall-Effect Digital Position Sensor 工作电源电压:3 V to 24 V 电源电流:3.5 mA 最大输出电流:20 mA 工作点最小值/最大值:5 G, 55 G 最小/最大释放点（Brp）:- 55 G, - 5 G 最大工作温度:+ 150 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23