3141 THRU 3144
SENSITIVE
HALL-EFFECT SWITCHES
FOR HIGH-TEMP. OPERATION
FUNCTIONAL BLOCK DIAGRAM
1
V
CC
REG.
3
2
OUTPUT
GROUND
X
Dwg. FH-005-2
ELECTRICAL CHARACTERISTICS at VCC = 8 V over operating temperature range.
Limits
Typ.
Characteristic
Symbol
Test Conditions
Operating
Min.
4.5
—
Max.
24
Units
V
Supply Voltage
VCC
—
Output Saturation Voltage
Output Leakage Current
Supply Current
VOUT(SAT)
IOUT = 20 mA, B > BOP
VOUT = 24 V, B < BRP
175
400
mV
µA
IOFF
ICC
tr
—
<1.010
—
B < BRP
(Output
OFF)
—
4.4
9.0mA
Output Rise Time
Output Fall Time
RL = 820 Ω, CL = 20 pF
RL = 820 Ω, CL = 20 pF
0.04
0.18
2.0
2.0
µs
µs
tf
—
MAGNETIC CHARACTERISTICS in gauss over operating supply voltage range.
Part Numbers*
A3141–
A3142–
A3143–
A3144–
Min. Typ. Max.
Characteristic
Min. Typ. Max.
Min. Typ. Max.
Min. Typ. Max.
BOP at TA = 25°C
501060 130180230 220280340 70 —
range 301075 115 180245
1045 130 75 125
350
520 280355
165 225 285
61025 190 152025 0 3205
over
operating
temp.
35
50—
—
450
330
430
BRP at TA = 25°C
175
over
operating
temp.
range
2055
range
1045
80 3055
2055
145
—
Bhys at TA = 25°C
80 3055
80 3055
80 2055
80 3055
—
over
operating
temp.
80 2055
—
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).
1 gauss (G) is exactly equal to 0.1 millitesla (mT).
*Complete part number includes a suffix to identify operating temperature range (E- or L-) and package type ( -LT or -UA).
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1993, 2002 Allegro MicroSystems, Inc.
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
