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VND920 数据表(PDF) 21 Page - STMicroelectronics |
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VND920 数据表(HTML) 21 Page - STMicroelectronics |
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21 / 26 page ![]() VND920 Package and PCB thermal data Doc ID 7767 Rev 6 21/26 Figure 22. Rthj-amb vs PCB copper area in open box free air condition Figure 23. Thermal impedance junction ambient single pulse 10 20 30 40 50 60 70 01 23 45 67 PCB Cu heatsink area (cm ^2)/island RTHj_am b (°C/W) RthC RthB RthA 0.01 0.1 1 10 100 0.0001 0.001 0.01 0.1 1 10 100 1000 time(s) Zth(°C/W) One channel ON Tw o channels ON 6 cm ^2/is land 3 cm ^2/is land 0,5 cm ^2/is land Obsolete Product(s) - Obsolete Product(s) |
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