Description
The A3340 Hall effect switch is an extremely temperature-stable
and stress-resistant sensor IC especially suited for operation
over extended temperature ranges up to 150癈. Superior
high-temperature performance is made possible through
dynamic offset cancellation, which reduces the residual offset
voltage normally caused by device overmolding, temperature
dependencies, and thermal stress.
The device includes on a single silicon chip a voltage regulator,
Hall-voltage generator, small-signal amplifier, chopper
stabilization, Schmitt trigger, and a short-circuit protected
open-collector output to sink up to 25 mA. A south pole of
sufficient strength will turn the output off. An on-board regulator
permits operation with supply voltages of 4.2 to 24 volts.
Two package styles provide a magnetically optimized package
for most applications. Suffix LH is an SOT23W surface mount
package and while suffix UA is a three-lead ultramini SIP for
through hole mounting.
The A3340 complements the A3240, which offers the same
features, but with the opposite output polarity.
A3340-DS, Rev. 8
Features and Benefits
? Resistant to physical stress
? Superior temperature stability
? Output short-circuit protection
? Operation from unregulated supply
? Reverse battery protection
? Sol id-state reliability
? Small size
Chopper-Stabilized, Precision
Hall-Effect Switch
Packages: 3 pin SOT23W (suffix LH),
and 3 pin SIP (suffix UA)
Functional Block Diagram
Not to scale
A3340
Regulator
GND
VCC
VOUT
Control
Current Limit
<1
To All Subcircuits
Amp
Amp
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相关代理商/技术参数
A3340LLHLT-T
功能描述:IC HALL EFFECT SWITCH SOT-23 RoHS:是 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR
A3340LUA-T
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