3185 THRU 3189
HALL-EFFECT LATCHES
FOR HIGH-TEMPERATURE
OPERATION
FUNCTIONAL BLOCK DIAGRAM
1 VCC
REG.
X
3 OUTPUT
2 GROUND
Dwg. FH-005-3
ELECTRICAL CHARACTERISTICS over operating temperature range, at VCC = 12 V.
Limits
Characteristic
Symbol
Test Conditions
Min. Typ. Max.
Supply Voltage
VCC
Operating
3.8
—
24
Output Saturation Voltage
Output Leakage Current
Supply Current
Output Rise Time
Output Fall Time
VOUT(SAT)
IOFF
ICC
tr
tf
IOUT = 20 mA, B > BOP
VOUT = 24 V, B < BRP
B < BRP (Output OFF)
B > BOP (Output ON)
RL = 820 Ω, CL = 20 pF
RL = 820 Ω, CL = 20 pF
—
175
400
—
0.05
5.0
—
4.75
8.0
—
5.7
—
—
100
—
—
100
—
Units
V
mV
µA
mA
mA
ns
ns
MAGNETIC CHARACTERISTICS in gauss over operating supply voltage range.
A3185
Part Numbers*
A3187
A3188
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.
170
140
-270
-300
340
280
Max.
270
300
-170
-140
540
600
Min.
50
50
-150
-175
100
100
Max.
150
175
-50
-50
300
350
Min.
100
80
-180
-200
200
160
Max.
180
200
-100
-80
360
400
A3189
Min. Max.
50 230
50 250
-230 -50
-250 -50
100 460
100 500
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 or UA).
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