3046, 3056,
AND
3058
HALL EFFECT
GEAR-TOOTH SENSORS
–ZERO SPEED
MAGNETIC CHARACTERISTICS in gauss at V
CC
= 8 V.
Part Numbers*
3046
Characteristic
Operate Point, B
OP
Test Conditions
Output Switches OFF to ON,
T
A
= +25°C
Output Switches ON to OFF,
T
A
= +25°C
B
OP
-B
RP
, T
A
= +25°C
Over operating temperature range,
Ref. B
OP
or B
RP
at T
A
= +25°C
Min. Typ. Max.
—
—
150
3056
Min. Typ. Max.
—
—
150
3058
Min. Typ. Max.
—
—
250
Release Point, B
RP
-150
—
—
-150
—
—
-250
—
—
Hysteresis, B
hys
15
50
90
15
50
90
150 200 250
Change in Trip Point,
∆B
OP
or
∆B
RP
—
—
±50
—
—
±75
—
—
±50
SATURATION VOLTAGE IN mV
NOTES: 1. Magnetic switch points are specified as the
difference in magnetic fields at the two Hall
elements.
2. As used here, negative flux densities are
defined as less than zero (algebraic conven-
tion).
3. Typical values are at T
A
= +25°C.
* Complete part number includes the prefix
‘A’ and a suffix to identify operating tempera-
ture range and package style. See selection
guide.
TYPICAL OPERATING CHARACTERISTICS
200
V =8V
CC
I
OUT
20 mA
=
180
160
140
120
100
-50
0
50
100
150
Dwg. GH-033
AMBIENT TEMPERATURE IN
°C
10
T
A
= +25°C
11
V
CC
= 24 V
10
9
SUPPLY CURRENT IN mA
B > B
OP
SUPPLY CURRENT IN mA
9
B > B
OP
8
B < B
RP
8
7
7
B < B
RP
6
6
5
0
5
10
15
20
25
Dwg. GH-031
5
-50
0
50
100
150
Dwg. GH-032
SUPPLY VOLTAGE IN VOLTS
AMBIENT TEMPERATURE IN
°C
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