STK681-310 データシートの表示（PDF） - ON Semiconductor
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STK681-310 Datasheet PDF : 10 Pages
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STK681-310
Technical Information
(1) Substrate temperature rise , ΔTc (no heat sink) - Internal average power dissipation, PdAV
ΔTc - PdAV
80
70
60
50
40
30
20
10
0
0
0.5
1.0
1.5
2.0
2.5
3.0
Hybrid IC internal average power dissipation, PdAV - W
3.5
ITF02508
(2) Internal average power dissipation, Pd, in the DC current-motor current, IO, characteristics (typ values for Pd)
9
VCC1=24V
8 VCC2=5.0V
Pd - IO
7
6
5
4
3
2
Tc=105°C
1
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
Motor current, IO - A
ITF02533
(3) Overheating current control characteristics
IO - Tc
4.5
Load 2Ω+5mH
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 10 20 30 40 50 60 70 80 90 100 110 120
Operating substrate temperature, Tc- °C
ITF02534
Overheating current control functions to prevent driver failure if a motor lock malfunction occurs.
No. A0761-7/10
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