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STK401-040 Folha de dados(PDF) 7 Page - Sanyo Semicon Device

Nome de Peças STK401-040
Descrição Electrónicos  AF Power Amplifier (Split Power Supply) (30 W 30 W 30 W min, THD = 0.4%)
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Fabricante Electrônico  SANYO [Sanyo Semicon Device]
Página de início  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

STK401-040 Folha de dados(HTML) 7 Page - Sanyo Semicon Device

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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


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