DataSheet39.com

What is A1142EUA?

This electronic component, produced by the manufacturer "Allegro MicroSystems", performs the same function as "Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches".


A1142EUA Datasheet PDF - Allegro MicroSystems

Part Number A1142EUA
Description Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches
Manufacturers Allegro MicroSystems 
Logo Allegro MicroSystems Logo 


There is a preview and A1142EUA download ( pdf file ) link at the bottom of this page.





Total 11 Pages



Preview 1 page

No Preview Available ! A1142EUA datasheet, circuit

A1140/41/42/43
Sensitive Two-Wire Chopper-Stabilized
Unipolar Hall-Effect Switches
Package LH, 3-pin SOT
3
1. VCC
2. No connection
3. GND
NC
12
Package UA, 3-pin SIP
1. VCC
2. GND
3. GND
PTCT
123
ABSOLUTE 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
The A1140, A1141, A1142, and A1143 devices are sensitive, two-wire, unipo-
lar, Hall effect switches that are factory-programmed at end-of-line to optimize
magnetic switchpoint accuracy. These devices are produced on the Allegro
MicroSystems advanced 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 application environments. Commonly found in a number of
automotive applications, the A1140-43 family of devices are utilized to sense: seat
track position, seat belt buckle presence, hood/trunk latching, and shift selector
position.
Two-wire unipolar switches are particularly advantageous in price-sensitive appli-
cations, because they require one less wire than the more traditional open-collec-
tor output switches. Additionally, the system designer gains inherent diagnostics
because output current normally ows in either of two narrowly-specied ranges.
Any output current level outside of these two ranges is a fault condition. The
A1140-43 family of devices also features on-chip transient protection, and a Zener
clamp to protect against overvoltage conditions on the supply line.
The output currents of the A1141 and A1143 switch HIGH in the presence of a south
polarity magnetic eld of sufcient strength; and switch LOW otherwise, including
when there is no signicant magnetic eld present. The A1140 and A1142 have
inverted output current levels: switching LOW in the presence of a south polarity
magnetic eld of sufcient strength, and HIGH otherwise. The devices also differ in
their specied LOW current supply levels.
All family members are offered in two package styles: SOT-23W, a miniature low-
prole package for surface-mount applications (sufx –LH), and TO-92, three-
lead ultra-mini Single Inline Package (SIP) for through-hole mounting
(sufx –UA).
Field-programmable versions are also available. Refer to: A1180, A1181, A1182,
and A1183.
Features and Benets
Chopper stabilization
Low switchpoint drift over operating tem-
perature range
Low stress sensitivity
Factory programmed at end-of-line for
optimized switchpoints
On-chip protection
Supply transient protection
Reverse-battery protection
On-board voltage regulator
3.5 V to 24 V operation
A1140-DS
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com

line_dark_gray
A1142EUA equivalent
A1140/41/42/43
Sensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches
THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information
Characteristic
Package Thermal Resistance
Symbol
RθJA
Test Conditions
Package LH, minimum-K PCB (single-sided with
copper limited to solder pads)
Package LH, low-K PCB (double-sided with
0.926 in2 copper area)
Package UA, minimum-K PCB (single-sided with
copper limited to solder pads)
Min. Typ. Max Units
110 –
– ºC/W
228 –
– ºC/W
165 –
– ºC/W
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
20
1900
1800
1700
1600
1500
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
20
Power Derating Curve
TJ(max) = 165ºC; ICC = ICC(max)
VCC(max)
Low-K PCB, Package LH
(RθJA = 110 ºC/W)
Minimum-K PCB, Package UA
(RθJA = 165 ºC/W)
Minimum-K PCB, Package LH
(RθJA = 228 ºC/W)
VCC(min)
40 60 80 100 120 140 160
Maximum Power Dissipation, PD(max)
TJ(max) = 165ºC; VCC = VCC(max); ICC = ICC(max)
180
(RMθiJnAim=(uR1Lmθ6JoA5-wK=-ºKCP1P/C1W0CB)Bº,C,P/PWaac)ckkaaggee
LH
UA
(RMθiJnAim=u2m2-8KºPCC/WB), Package LH
40 60 80 100 120 140 160 180
Temperature (°C)
A1140-DS
Allegro MicroSystems, Inc.
5
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com


line_dark_gray

Preview 5 Page


Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for A1142EUA electronic component.


Information Total 11 Pages
Link URL [ Copy URL to Clipboard ]
Download [ A1142EUA.PDF Datasheet ]

Share Link :

Electronic Components Distributor


An electronic components distributor is a company that sources, stocks, and sells electronic components to manufacturers, engineers, and hobbyists.


SparkFun Electronics Allied Electronics DigiKey Electronics Arrow Electronics
Mouser Electronics Adafruit Newark Chip One Stop


Featured Datasheets

Part NumberDescriptionMFRS
A1142EUAThe function is Sensitive Two-Wire Chopper-Stabilized Unipolar Hall-Effect Switches. Allegro MicroSystemsAllegro MicroSystems

Semiconductors commonly used in industry:

1N4148   |   BAW56   |   1N5400   |   NE555   |  

LM324   |   BC327   |   IRF840  |   2N3904   |  



Quick jump to:

A114     1N4     2N2     2SA     2SC     74H     BC     HCF     IRF     KA    

LA     LM     MC     NE     ST     STK     TDA     TL     UA    



Privacy Policy   |    Contact Us     |    New    |    Search