STK672-442B-E Datasheet, PDF (22/26 Pages) Sanyo Semicon Device – Thick-Film Hybrid IC 2-phase Stepping Motor Driver

STK672-442B-E
Figure 2 Substrate temperature rise, ΔTc - 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 _ITF02717
Figure 3 Heat sink area (Board thickness: 2mm) - θc-a
θc-a - S
100
7
5
3
2
10
7
5
3
2
WithWa ^{iftlhatnbolasuckrfasucerffaicneisfhinish}
1.0
10
23
5 7 ₁₀₀
23
Heat sink area, S - cm²
5 7 ₁₀₀₀
ITF02554
No.A1735-22/24