DataSheet26.com

A3144 PDF даташит

Спецификация A3144 изготовлена ​​​​«Allegro MicroSystems» и имеет функцию, называемую «Sensitive Hall Effect Switches».

Детали детали

Номер произв A3144
Описание Sensitive Hall Effect Switches
Производители Allegro MicroSystems
логотип Allegro MicroSystems логотип 

9 Pages
scroll

No Preview Available !

A3144 Даташит, Описание, Даташиты
A3141, A3142, A3143, and A3144
Sensitive Hall Effect Switches for High-Temperature Operation
Discontinued Product
These parts are no longer in production The device should not be
purchased for new design applications. Samples are no longer available.
Date of status change: October 31, 2005
Recommended Substitutions:
For new customers and applications:
• for the A3141, refer to the A1101
• for the A3142, refer to the A1102
• for the A3143, refer to the A1103
• for the A3144, refer to the A1104
NOTE: For detailed information on purchasing options, contact your
local Allegro field applications engineer or sales representative.
Allegro MicroSystems, Inc. reserves the right to make, from time to time, revisions to the anticipated product life cycle plan for a
product to accommodate changes in production capabilities, alternative product availabilities, or market demand. The information
included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsibility for its use; nor
for any infringements of patents or other rights of third parties which may result from its use.









No Preview Available !

A3144 Даташит, Описание, Даташиты
3141 THRU
3144
SENSITIVE HALL-EFFECT SWITCHES
FOR HIGH-TEMPERATURE OPERATION
These Hall-effect switches are monolithic integrated circuits with
tighter magnetic specifications, designed to operate continuously over
extended temperatures to +150°C, and are more stable with both
temperature and supply voltage changes. The unipolar switching
characteristic makes these devices ideal for use with a simple bar or rod
magnet. The four basic devices (3141, 3142, 3143, and 3144) are
identical except for magnetic switch points.
V
CC
12
3
Each device includes a voltage regulator for operation with supply
voltages of 4.5 to 24 volts, reverse battery protection diode, quadratic
Hall-voltage generator, temperature compensation circuitry, small-
signal amplifier, Schmitt trigger, and an open-collector output to sink
up to 25 mA. With suitable output pull up, they can be used with
bipolar or CMOS logic circuits. The A3141– and A3142– are im-
proved replacements for the UGN/UGS3140–; the A3144– is the
improved replacement for the UGN/UGS3120–.
Dwg. PH-003A
Pinning is shown viewed from branded side.
The first character of the part number suffix determines the device
operating temperature range. Suffix ‘E–’ is for the automotive and
industrial temperature range of -40°C to +85°C. Suffix ‘L–’ is for the
automotive and military temperature range of -40°C to +150°C. Three
package styles provide a magnetically optimized package for most
applications. Suffix ‘–LT’ is a miniature SOT89/TO-243AA transistor
package for surface-mount applications; suffix ‘–UA’ is a three-lead
ultra-mini-SIP.
ABSOLUTE MAXIMUM RATINGS
at TA = +25°C
Supply Voltage, VCC ............................ 28 V
Reverse
Battery Voltage,
V
RCC
...........
-35
V
Magnetic Flux Density, B .......... Unlimited
Output OFF Voltage, V
OUT
..................
28 V
Reverse Output Voltage, VOUT ........... -0.5 V
Continuous Output Current, IOUT ...... 25 mA
Operating Temperature Range, T
A
Suffix ‘E–’ .................. -40°C to +85°C
Suffix ‘L–’ ................ -40°C to +150°C
Storage Temperature Range,
TS .............................. -65°C to +170°C
FEATURES and BENEFITS
s Superior Temp. Stability for Automotive or Industrial Applications
s 4.5 V to 24 V Operation … Needs Only An Unregulated Supply
s Open-Collector 25 mA Output … Compatible with Digital Logic
s Reverse Battery Protection
s Activate with Small, Commercially Available Permanent Magnets
s Solid-State Reliability
s Small Size
s Resistant to Physical Stress
Always order by complete part number, e.g., A3141ELT .









No Preview Available !

A3144 Даташит, Описание, Даташиты
3141 THRU 3144
SENSITIVE
HALL-EFFECT SWITCHES
FOR HIGH-TEMP. OPERATION
FUNCTIONAL BLOCK DIAGRAM
1 VCC
REG.
X 3 OUTPUT
2 GROUND
Dwg. FH-005-2
ELECTRICAL CHARACTERISTICS at VCC = 8 V over operating temperature range.
Limits
Characteristic
Symbol
Test Conditions
Min. Typ. Max.
Supply Voltage
Output Saturation Voltage
Output Leakage Current
VCC
VOUT(SAT)
IOFF
Operating
IOUT = 20 mA, B > BOP
VOUT = 24 V, B < BRP
4.5 —
24
— 175 400
— <1.0 10
Supply Current
Output Rise Time
Output Fall Time
ICC
B < BRP (Output OFF)
— 4.4 9.0
tr
RL = 820 , CL = 20 pF
— 0.04 2.0
tf
RL = 820 , CL = 20 pF
— 0.18 2.0
Units
V
mV
µA
mA
µs
µs
MAGNETIC CHARACTERISTICS in gauss over operating supply voltage range.
Part Numbers*
A3141–
A3142–
A3143–
A3144–
Characteristic
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
BOP at TA = 25°C
50 100 160 130 180 230 220 280 340
70 — 350
over operating temp. range
30 100 175 115 180 245 205 280 355
35 — 450
BRP at TA = 25°C
10 45 130
75 125 175 165 225 285
50 — 330
over operating temp. range
10 45 145
60 125 190 150 225 300
25 — 430
Bhys at TA = 25°C
20 55 80
30 55 80
30 55 80
20 55 —
over operating temp. range
20 55 80
30 55 80
30 55 80
20 55 —
NOTES: Typical values are at TA = +25°C and VCC = 8 V.
BOP = operate point (output turns ON); BRP = release point (output turns OFF); Bhys = hysteresis (BOP - BRP).
1 gauss (G) is exactly equal to 0.1 millitesla (mT).
*Complete part number includes a suffix to identify operating temperature range (E- or L-) and package type ( -LT or -UA).
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1993, 2002 Allegro MicroSystems, Inc.










Скачать PDF:

[ A3144.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
A3141Sensitive Hall Effect SwitchesAllegro MicroSystems
Allegro MicroSystems
A3141-LTSENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATIONAllegro MicroSystems
Allegro MicroSystems
A3141-USENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATIONAllegro MicroSystems
Allegro MicroSystems
A3141-UASENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATIONAllegro MicroSystems
Allegro MicroSystems

Номер в каталоге Описание Производители
TL431

100 мА, регулируемый прецизионный шунтирующий регулятор

Unisonic Technologies
Unisonic Technologies
IRF840

8 А, 500 В, N-канальный МОП-транзистор

Vishay
Vishay
LM317

Линейный стабилизатор напряжения, 1,5 А

STMicroelectronics
STMicroelectronics

DataSheet26.com    |    2020    |

  Контакты    |    Поиск