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參數(shù)資料
| 型號(hào)： | A3187U |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION |
| 中文描述： | 霍爾效應(yīng)鎖存器的高溫作業(yè) |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 181K |
| 代理商： | A3187U |
HALL-EFFECT LATCHES
FOR HIGH-TEMPERATURE OPERATION
These Hall-effect latches are extremely temperature-stable and stress-
resistant sensors especially suited for operation over extended temperature
ranges to +150
°
C. Superior high-temperature performance is made possible
through a novel Schmitt trigger circuit that maintains operate and release
point symmetry by compensating for temperature changes in the Hall ele-
ment. Additionally, internal compensation provides magnetic switch points
that become more sensitive with temperature, hence offsetting the usual
degradation of the magnetic field with temperature. The symmetry capability
makes these devices ideal for use in pulse-counting applications where duty
cycle is an important parameter. The four basic devices (3185, 3187, 3188,
and 3189) are identical except for magnetic switch points.
Each device includes on a single silicon chip a voltage regulator, qua-
dratic Hall-voltage generator, temperature compensation circuit, signal
amplifier, Schmitt trigger, and a buffered open-collector output to sink up to
25 mA. The on-board regulator permits operation with supply voltages of 3.8
to 24 volts.
The first character of the part number suffix determines the device
operating temperature range. Suffix ‘E–’ is for -40
°
C to +85
°
C, and suffix
‘L–’ is for -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 transistor package for surface-mount applications; suffix ‘–U’
is a three-lead plastic mini-SIP, while suffix ‘–UA’ is a three-lead ultra-mini-
SIP.
D
2
ABSOLUTE MAXIMUM RATINGS
at T
A
= +25
°
C
Supply Voltage, V
CC
............................
30 V
Reverse Battery Voltage, V
RCC
...........
-30 V
Magnetic Flux Density, B ...........
Unlimited
Output OFF Voltage, V
OUT
..................
30 V
Reverse Output Voltage, V
OUT
..........
-0.5 V
Continuous Output Current, I
OUT
.....
25 mA
Operating Temperature Range, T
A
Suffix ‘E–’...................
-40
°
C to +85
°
C
Suffix ‘L–’.................
-40
°
C to +150
°
C
Storage Temperature Range,
T
S
...............................
-65
°
C to +170
°
C
FEATURES
I
Symmetrical Switch Points
I
Superior Temperature Stability
I
Operation From Unregulated Supply
I
Open-Collector 25 mA Output
I
Reverse Battery Protection
I
Activate With Small, Commercially Available Permanent Magnets
I
Solid-State Reliability
I
Small Size
I
Resistant to Physical Stress
Pinning is shown viewed from branded side.
Always order by complete part number: the prefix ‘A’ + the basic four-digit
part number + a suffix to indicate operating temperature range +
a suffix to indicate package style, e.g.,
A3185ELT
.
3185
THRU
3189
Dwg. PH-003A
1
S
V
CC
G
3
2
O
X
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| A3188LLT | HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION |
| A3188LT | HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION |
| A3188U | HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION |
| A3283LH | CHOPPER-STABILIZED, PRECISION HALL-EFFECT LATCHES |
| A3283LT | CHOPPER-STABILIZED, PRECISION HALL-EFFECT LATCHES |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| A3187UA | 制造商:ALLEGRO 制造商全稱(chēng):Allegro MicroSystems 功能描述:HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION |
| A3187X | 制造商:ALLEGRO 制造商全稱(chēng):Allegro MicroSystems 功能描述:HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION |
| A3188ELL | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Hall-Effect Switch |
| A3188ELT | 制造商:ALLEGRO 制造商全稱(chēng):Allegro MicroSystems 功能描述:HALL-EFFECT LATCHES FOR HIGH-TEMPERATURE OPERATION |
| A3188EU | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Hall-Effect Switch |
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