BA3960 데이터 시트보기 (PDF) - ROHM Semiconductor

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BA3960

Dual circuit, variable output voltage regulator

ROHM Semiconductor 

Regulator ICs

FOutput voltage setting

FApplication example

BA3960

FEstimate of allowable power dissipation

Except under transitional conditions, the power dissipa-

tion of this IC is 2.2W per unit at 25_C.

See Fig. 5 for thermal derating characteristics, including

some cases where heat sinks are used.

PMAX. calculation

S Power consumed by ACTIVE 1 P1 = (VCC * set output voltage) maximum output voltage

S Power consumed by ACTIVE 2 P2 = (VCC * set output voltage) maximum output voltage

S Power consumed internally by each circuit P3 = VCC circuit current

PMAX. = P1 ) P2 ) P3

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