A1146 Datasheet PDF - Allegro MicroSystems

www.Datasheet-PDF.com

A1146
Allegro MicroSystems

Part Number A1146
Description (A1145 / A1146) Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches
Page 12 Pages


A1146 datasheet pdf
Download PDF for PC
A1146 pdf
View PDF for Mobile


No Preview Available !

A1145 and A1146
Ultrasensitive Two-Wire Chopper-Stabilized
Unipolar Hall Effect Switches
Features and Benefits
Chopper stabilization
Low switchpoint drift over operating
temperature range
Low sensitivity to stress
Factory programmed at end-of-line for optimized
switchpoints
On-chip protection
Supply transient protection
Reverse-battery protection
On-board voltage regulator
3.5 to 24 V operation
Packages: 3 pin SOT23W (suffix LH), and
3 pin SIP (suffix UA)
Description
The A1145 and A1146 devices are two-wire, unipolar, Hall
effect switches that are factory-programmed at end-of-line to
optimize ultrasensitive magnetic switchpoint accuracy. These
devices use a patented high frequency chopper-stabilization
technique, produced using the Allegro advanced BiCMOS
wafer fabrication process, to achieve magnetic stability and
to eliminate offset inherent in single-element devices exposed
to harsh application environments.
Commonly found in a number of automotive applications,
these switches are utilized to sense seat track position, seat
belt buckle presence, hood/trunk latching, and shift selector
position. Two-wire unipolar switches, such as the A1145
and A1146, are particularly advantageous in price-sensitive
applications because they require one less wire for operation
than do switches with the more traditional open-collector output.
Additionally, the system designer inherently gains diagnostics
because there is always output current flowing, which should
be in either of two narrow ranges. Any current level not within
these ranges indicates a fault condition. These devices also
www.DataSheet4U.com
Not to scale
V+
VCC
Continued on the next page…
Functional Block Diagram
0.01 uF
Clock/Logic
Amp
Regulator
To All Subcircuits
Low-Pass
Filter
A1145-DS, Rev. 8
GND
Package UA Only
GND

A1146 datasheet pdf
Download PDF for PC
A1146 pdf
View PDF for Mobile


Related : Start with A114 Part Numbers by
A1140 Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches A1140
Allegro MicroSystems
A1140 pdf
A1140ELH Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches A1140ELH
Allegro MicroSystems
A1140ELH pdf
A1140EUA Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches A1140EUA
Allegro MicroSystems
A1140EUA pdf
A1140LLH Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches A1140LLH
Allegro MicroSystems
A1140LLH pdf
A1140LUA Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches A1140LUA
Allegro MicroSystems
A1140LUA pdf
A1141 2SA1141 A1141
SavantIC
A1141 pdf
A1141ELH Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches A1141ELH
Allegro MicroSystems
A1141ELH pdf
A1141EUA Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches A1141EUA
Allegro MicroSystems
A1141EUA pdf

Index :   0   1   2   3   4   5   6   7   8   9   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z   NEW   

Since 2010   ::   HOME   ::   Contact