stk681-320 ON Semiconductor, stk681-320 Datasheet - Page 7

• Manufacturer Part Number: stk681-320
• Description: Thick-film Hybrid Ic Forward/reverse Motor Driver
• Manufacturer: ON Semiconductor

Technical Information
(1) Substrate temperature rise , ΔTc (no heat sink) - Internal average power dissipation, PdAV
(2) Internal average power dissipation, Pd, in the DC current-motor current, I O , characteristics (typ values for Pd)
(3) Overheating current control characteristics
Overheating current control functions to prevent driver failure if a motor lock malfunction occurs.
80
70
60
50
40
30
20
10
10
1
6
5
4
3
2
0
0
9
8
7
6
5
4
3
2
1
0
0
0
0
Hybrid IC internal average power dissipation, PdAV - W
V CC 1=24V
V CC 2=5.0V
10
0.5
20
Operating substrate temperature, Tc- °C
1
30
STK681-320
1.0
40
Motor current, I O - A
ΔTc - PdAV
2
50
1.5
Pd - I O
I O - Tc
60
2.0
70
3
80
2.5
Load 2Ω+5mH
90
4
100
3.0
110
ITF02542
ITF02508
ITF02541
120
3.5
5
No. A0762-7/10