A3144 查看數據表（PDF） - Allegro MicroSystems
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A3144 Datasheet PDF : 8 Pages
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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 Ω, CL = 20 pF
—
0.04
2.0
tf
RL = 820 Ω, 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
BOP at TA = 25°C
over operating temp. range
BRP at TA = 25°C
over operating temp. range
Bhys at TA = 25°C
over operating temp. range
Min. Typ. Max.
50 100 160
30 100 175
10 45 130
10 45 145
20 55 80
20 55 80
Min. Typ. Max.
130 180 230
115 180 245
75 125 175
60 125 190
30 55 80
30 55 80
Min. Typ. Max.
220 280 340
205 280 355
165 225 285
150 225 300
30 55 80
30 55 80
Min. Typ. Max.
70 — 350
35 — 450
50 — 330
25 — 430
20 55 —
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).
*Complete part number includes a suffix to identify operating temperature range (E- or L-) and package type ( -LT, -U, or -UA).
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1993, 1999, Allegro MicroSystems, Inc.
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