STK7561F_ データシートの表示（PDF） - SANYO -> Panasonic

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STK7561F_

Chopper Type Parallel 2-Output Voltage Regulators

SANYO -> Panasonic 

STK7560 Series

Assuming power dissipation in each element as follows :

PT1 for power transistor of OUTPUT 1

PF1 for FRD of OUTPUT 1

PT2 for power transistor of OUTPUT 2

PF2 for FRD of OUTPUT 2

Total power dissipation Pd in the IC and heat sink thermal resistance θca are :

Pd= (PT + PF1) + (PT2 + PF2) [W]

θca= Tc – Ta [°C/W]

Pd

where Tc : Case temperature=105°C, Ta=Ambient temperature

Junction temperature in each element is :

Tj= Pd × θjc + Tc [°C]

No.1773–10/13

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