3185 THRU 3189
HALL-EFFECT LATCHES
FOR HIGH-TEMPERATURE
OPERATION
FUNCTIONAL BLOCK DIAGRAM
1
V
CC
REG.
3
OUTPUT
GROUND
X
2
Dwg. FH-005-3
ELECTRICAL CHARACTERISTICS over operating temperature range, at VCC = 12 V.
Limits
Characteristic
Symbol
VCC
Test Conditions
Operating
Min.
Typ.
Max.
24
Units
V
Supply Voltage
3.8
Output Saturation Voltage
Output Leakage Current
Supply Current
VOUT(SAT)
IOFF
IOUT = 20 mA, B > BOP
VOUT = 24 V, B < BRP
175
400
5.0
mV
µA
0.05
ICC
B < BRP
(Output
OFF)
4.75
8.0mA
B > BOP (Output ON)
RL = 820 Ω, CL = 20 pF
RL = 820 Ω, CL = 20 pF
5.7
100
100
mA
ns
Output Rise Time
Output Fall Time
tr
tf
ns
MAGNETIC CHARACTERISTICS in gauss over operating supply voltage range.
Part Numbers*
A3185
Min.
A3187
Min.
A3188
A3189
Characteristic
Max.
Max.
Min.
Max.
Min.
Max.
BOP at TA = 25°C
170270
range
50 15018010 50230
01403500 175
over
operating
temp.
0802050250
BRP at TA = 25°C
over operating temp. range
-270-170 -150 -50
-1080-10-230-50
-300
340
280
-140
540
600
-175
100
100
-50
300
350
-200
200
160
-80
360
400
-250
100
100
-50
460
500
B
hys at TA = 25°C
over operating temp. range
NOTES: BOP = operate point (output turns ON); BRP = release point (output turns OFF); Bhys = hysteresis (BOP - BRP).
As used here, negative flux densities are defined as less than zero (algebraic convention).
*Complete part number includes a suffix to identify operating temperature range (E or L) and package type ( LT, U, or UA).
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Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1995, 1999, Allegro MicroSystems, Inc.
SANKEN [ SANKEN ELECTRIC ]
