HAL320SO-E 查看數據表（PDF） - Micronas
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HAL320SO-E Datasheet PDF : 13 Pages
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HAL320
Magnetic Characteristics at TJ = –40 °C to +170 °C, VDD = 4.5 V to 24 V
Typical Characteristics for VDD = 12 V
Magnetic flux density values of switching points (Condition: –10 mT < B0 < 10 mT)
Positive flux density values refer to the magnetic south pole at the branded side ot the package. ∆B = BS1 – BS2
Parameter
–40 °C
Min. Typ. Max.
Min.
25 °C
Typ. Max.
100 °C
Min. Typ. Max.
170 °C
Unit
Min. Typ. Max.
On point ∆BON
∆B > ∆BON
–1.5
1.2 2.5
Off point ∆BOFF
∆B < ∆BOFF
–2.5 –0.6 1.5
Hysteresis
1
∆BHYS = ∆BON – ∆BOFF
1.8
4
Offset ∆BOFFSET =
–2
0.3
2
(∆BON + ∆BOFF)/2
-1.5
1.2
–2.5 –0.6
1
1.8
–2
0.3
2.5 –2
1.2
1.5 –3
–0.5
4
1
1.7
2
–2.5
0.4
3
–2.5 1.1
2
–3.5 –0.4
4
0.8
1.5
2.5 –3
0.4
3.5 mT
2.5 mT
4
mT
3
mT
In back-biased applications, sensitivity mismatch between the two Hall plates S1 and S2 can lead to an additional offset
of the magnetic switching points. In back-biased applications with the magnetic preinduction B0, this sensitivity mis-
match generates the magnetic offset ∆BOFFSETbb = |S1 – S2|/S1 @ B0 + ∆BOFFSET.
Parameter
–40 °C 25 °C 100 °C 170 °C Unit
Sensitivity mismatch1)
|S1 – S2|/S1
1.52)
1.02)
1.02)
0.52)
%
1) Mechanical stress from packaging can influence sensitivity mismatch.
2) All values are typical values.
The magnetic switching points are checked at room temperature at a magnetic preinduction of B0 = 150 mT.
These magnetic parameters may change under external pressure and during the lifetime of the sensor.
Parameter
On point ∆BONbb
Off point ∆BOFFbb
Hysteresis ∆BHYS
Offset ∆BOFFSETbb
Min.
25 °C
Typ.
Unit
Max.
–4.5
1.5
5.5 mT
–5.5 –0.3
4.5 mT
1
1.8
4
mT
–5
0.6 +5
mT
VOH
Output Voltage
5.0
2.0
VOL
DBOFF min
DBOFF 0 DBON
DBON max
DBHYS
DB = BS1 – BS2
Fig. 7: Definition of switching points and hysteresis
Micronas
2.0
1.0
Fig. 8: Recommended pad size for SOT-89A and
SOT-89B; Dimensions in mm
7
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