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PDF A3143-UA Data sheet ( Hoja de datos )
| Número de pieza | A3143-UA | |
| Descripción | SENSITIVE HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION | |
| Fabricantes | Allegro MicroSystems | |
| Logotipo |  |
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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 SOT-89/TO-243AA transis-
tor package for surface-mount applications; suffix ‘–U’ is a three-lead
plastic mini-SIP, while 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
I Superior Temp. Stability for Automotive or Industrial Applications
I 4.5 V to 24 V Operation … Needs Only An Unregulated Supply
I Open-Collector 25 mA Output … Compatible with Digital Logic
I Reverse Battery Protection
I Activate with Small, Commercially Available Permanent Magnets
I Solid-State Reliability
I Small Size
I Resistant to Physical Stress
Always order by complete part number, e.g., A3141ELT .
1 page  
3141 THRU 3144
SENSITIVE
HALL-EFFECT SWITCHES
FOR HIGH-TEMP. OPERATION
PACKAGE DESIGNATOR ‘LT’
(SOT-89/TO-243AA)
Dimensions in Inches
(for reference only)
0.173
0.181
0.064
0.072
0.055
0.063
0.155
0.167
0.090
1 2 3 0.102
0.084
0.090
0.014
0.017
0.035
0.047
0.059
BSC
0.014
0.019
0.017
0.022
0.118
BSC
Dwg. MA-009-3 in
Dimensions in Millimeters
(controlling dimensions)
3.94
4.25
4.40
4.60
1.62
1.83
2.29
1 2 3 2.60
1.40
1.60
2.13
2.29
0.35
0.44
0.89
1.20
1.50
BSC
0.36
0.48
0.44
0.56
3.00
BSC
Dwg. MA-009-3 mm
NOTES: 1.
2.
3.
Tolerances on package height and width represent allowable mold offsets. Dimensions given are
measured at the widest point (parting line).
Exact body and lead configuration at vendor’s option within limits shown.
Height does not include mold gate flash.
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet A3143-UA.PDF ] | |
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