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參數(shù)資料
| 型號： | 3161 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS |
| 中文描述： | 霍爾效應(yīng)開關(guān)2線應(yīng)用 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 169K |
| 代理商： | 3161 |
This Hall-effect switch is a monolithic integrated circuit designed to
operate continuously over extended temperatures to +85
°
C. The unipo-
lar switching characteristic makes this device ideal for use with a simple
bar or rod magnet. The A3161ELT and A3161EUA are identical except
for package.
Each device includes a voltage regulator for operation with supply
voltages of 3.5 to 25 volts, reverse battery protection diode, quadratic
Hall-voltage generator, temperature compensation circuitry, small-signal
amplifier, Schmitt trigger, and a constant-current open-collector output.
Noise radiation is limited by control of the output current slew rate.
Two package styles provide a magnetically optimized package for
most applications. Suffix ‘LT’ is a miniature SOT-89/TO-243AA
transistor package for surface-mount applications; suffix ‘UA’ is a three-
lead ultra-mini SIP for through-hole mounting.
HALL-EFFECT SWITCH
FOR 2-WIRE APPLICATIONS
Always order by complete part number, e.g.,
A3161ELT .
D
2
Pinning is shown viewed from branded side.
ABSOLUTE MAXIMUM RATINGS
at T
A
= +25
°
C
Supply Voltage, V
CC
Continuous.................................
28 V
Surge (t
w
≤
100 ms)....................
40 V
Reverse Battery Voltage, V
RCC
Continuous................................
-25 V
Surge (t
w
≤
100 ms)...................
-40 V
Magnetic Flux Density, B .......
Unlimited
Output OFF Voltage, V
OUT
..............
28 V
Operating Temperature Range,
T
A
.............................
-40
°
C to +85
°
C
Storage Temperature Range,
T
S
...........................
-65
°
C to +170
°
C
FEATURES and BENEFITS
I
Internal Current Regulator for 2-Wire Operation
I
Output Slew Rate Controlled
I
3.5 V to 25 V Operation … Needs Only An Unregulated Supply
I
Reverse Battery Protection
I
Excellent Temp. Stability
I
Activate with Small, Commercially Available Permanent Magnets
I
Small Size
I
Solid-State Reliability … No Moving Parts
I
Resistant to Physical Stress
3161
Dwg. PH-003-3
1
S
V
CC
G
3
2
O
X
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