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STK401-040 датащи(PDF) 8 Page - Sanyo Semicon Device |
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STK401-040 датащи(HTML) 8 Page - Sanyo Semicon Device |
8 / 10 page The STK400-290 has six power transistors, so the thermal resistance per transistor θj-c is 1.7°C / W. With an assured ambient temperature Ta of 50°C, the required radiator thermal resistance θc-a would be: From expression (1)' θc-a < (125–50)/66.5 < 1.12 From expression (2)' θc-a < (150–50)/66.5 – 1.7/6 < 1.22 To satisfy both, 1.12°C/W is the required radiator thermal resistance. Figure 2 illustrates Pd - PO when the VCC of STK400-290 is ±26 V and RL is functioning at 3 Ω. Pd = 76 W (1/10 PO max = during 5 W) From expression (1)' θc-a < (125–50)/76 < 0.98 From expression (2)' θc-a < (150-50)/76-1.7/6 < 1.03 To satisfy both, 0.98°C / W is the required radiator thermal resistance. This design example is based on a fixed voltage supply, and will require verification within your specific set environment. No. 4822-8/10 STK400-290 |
Аналогичный номер детали - STK401-040 |
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Аналогичное описание - STK401-040 |
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