3056 查看數據表（PDF） - Allegro MicroSystems
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3056 Datasheet PDF : 8 Pages
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3046, 3056, AND 3058
HALL EFFECT
GEAR-TOOTH SENSORS
–ZERO SPEED
MAGNETIC CHARACTERISTICS in gauss at VCC = 8 V.
Characteristic
Operate Point, BOP
Release Point, BRP
Hysteresis, Bhys
Test Conditions
Output Switches OFF to ON,
TA = +25°C
Output Switches ON to OFF,
TA = +25°C
BOP-BRP, TA = +25°C
3046
Min. Typ. Max.
— — 150
-150 — —
15 50 90
Part Numbers*
3056
Min. Typ. Max.
— — 150
3058
Min. Typ. Max.
— — 250
-150 — —
-250 — —
15 50 90
150 200 250
Change in Trip Point,
∆BOP or ∆BRP
Over operating temperature range,
Ref. BOP or BRP at TA = +25°C
— — ±50
— — ±75
— — ±50
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 TA = +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
180
V =8V
I OCUCT= 20 mA
160
140
120
10
9
8
7
6
5
0
TA = +25°C
B > BOP
B < BRP
5
10
15
20
25
SUPPLY VOLTAGE IN VOLTS
Dwg. GH-031
100
-50
11
10
9
8
7
6
5
-50
0
50
100
AMBIENT TEMPERATURE IN °C
150
Dwg. GH-033
V CC= 24 V
B > B OP
B < BRP
0
50
100
AMBIENT TEMPERATURE IN °C
150
Dwg. GH-032
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