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參數資料
| 型號： | A3123LU |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | HALL-EFFECT SWITCHES FOR HIGH-TEMPERATURE OPERATION |
| 中文描述： | 霍爾效應開關高溫作業(yè) |
| 文件頁數： | 2/8頁 |
| 文件大?。?/td> | 151K |
| 代理商： | A3123LU |
3121, 3122,
AND
3123
HALL-EFFECT SWITCHES
FOR HIGH-TEMPERATURE
OPERATION
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright 1992, 1999, Allegro MicroSystems, Inc.
FUNCTIONAL BLOCK DIAGRAM
Limits
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Units
Supply Voltage
V
CC
Operating
4.5
—
24
V
Output Saturation Voltage
V
OUT(SAT)
I
OUT
= 20 mA, B > B
OP
—
140
400
mV
Output Leakage Current
I
OFF
V
OUT
= 24 V, B < B
RP
—
<1.0
10
μ
A
Supply Current
I
CC
B < B
RP
(Output OFF)
R
L
= 820
, C
L
= 20 pF
R
L
= 820
, C
L
= 20 pF
—
4.6
9.0
mA
Output Rise Time
t
r
—
0.04
2.0
μ
s
Output Fall Time
t
f
—
0.18
2.0
μ
s
ELECTRICAL CHARACTERISTICS over operating temperature range, at V
CC
= 12 V.
MAGNETIC CHARACTERISTICS in gauss over operating supply voltage range.
Part Numbers*
A3121
A3122
A3123
Characteristic
Min.
Typ.
Max.
Min.
Typ.
Max.
Min.
Typ.
Max
B
OP
at T
A
= 25
°
C
250
350
450
280
340
400
250
345
440
over operating temp. range
220
350
500
260
340
430
230
345
470
B
RP
at T
A
= 25
°
C
125
245
380
140
235
330
180
240
300
over operating temp. range
80
245
410
120
235
360
160
240
330
B
hys
at T
A
= 25
°
C
70
105
140
70
105
140
70
105
140
over operating temp. range
60
105
150
70
105
140
70
105
140
NOTES: Typical values are at T
A
= +25
°
C and V
CC
= 12 V.
B
OP
= operate point (output turns ON); B
RP
= release point (output turns OFF); B
hys
= hysteresis (B
OP
- B
RP
).
*Complete part number includes a suffix to identify operating temperature range (E- or L-) and package type ( -LT, -U, or -UA).
V
CC
X
REG.
Dwg. FH-005-2
GROUND
OUTPUT
3
2
1
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