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A1185, A11850, A11851

Table of contents:
Info of A1185
Info of A11850
Info of A11851

A1185, A11850, A11851 Selling Leads, Datasheet

MFG:APPLIEDDIG

A1185, A11850, A11851 Datasheet download

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Part Number: A1185

MFG: APPLIEDDIG

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A1185 General Description

The A1185 and A1186 are ultrasensitive, two-wire, unipolar Hall effect switches. The operate point, BOP, can be field-programmed, after final packaging of the sen- sor and placement into the application. This advanced feature allows the optimiza- tion of the sensor switching performance, by effectively accounting for variations caused by mounting tolerances for the device and the target magnet.

This family of devices are produced on the Allegro MicroSystems new DABIC5 BiCMOS wafer fabrication process, which implements a patented, high-frequency, chopper-stabilization technique that achieves magnetic stability and eliminates the offsets that are inherent in single-element devices exposed to harsh applica- tion environments. Commonly found in a number of automotive applications, the A1185 and A1186 devices are utilized to sense: seat track position, seat belt buckle presence, hood/trunk latching, and shift selector position.

A1185 Maximum Ratings

Supply Voltage, VCC ..........................................28 V
Reverse-Supply Voltage, VRCC .......................18 V
Magnetic Flux Density, B ............................Unlimited
Operating Temperature
Ambient, TA, Range E........................40ºC to 85ºC
Ambient, TA, Range L......................40ºC to 150ºC
Maximum Junction, TJ(max).............................165ºC
Storage Temperature, TS ............... 65ºC to 170ºC

A1185 Features

Chopper stabilization
    Low switchpoint drift over operating temperature range
    Low stress sensitivity
Field-programmable for optimized switchpoints
On-chip protection
   Supply transient protection
   Reverse-battery protection
   On-board voltage regulator
   3.5 V to 24 V operation

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