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STK401-130 Folha de dados(PDF) 7 Page - Sanyo Semicon Device |
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STK401-130 Folha de dados(HTML) 7 Page - Sanyo Semicon Device |
7 / 9 page The STK400-050 has six power transistors, so the thermal resistance per transistor θj-c is 1.8°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)/42.5 <1.76 From expression (2)' θc-a <(150–50)/42.5–1.8/6 <2.05 To satisfy both, 1.76°C/W is the required radiator thermal resistance. Figure 2 illustrates Pd - PO when the VCC of STK400-050 is ±19V and RL is functioning at 3Ω. Pd = 51W (1/10 PO max = during 3W) From expression (1)' θc-a <(125–50)-51 <1.47 From expression (2)' θc-a <(150-50)/51-1.8/6 <1.66 To satisfy both, 1.47°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. 4340-7/9 STK400-050 |
Nº de peça semelhante - STK401-130 |
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Descrição semelhante - STK401-130 |
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