BA3940A Просмотр технического описания (PDF) - ROHM Semiconductor

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BA3940A

System power supply for CD radio cassette players

ROHM Semiconductor 

Regulator ICs

FThermal derating curve

BA3940A

Estimate of allowable power dissipation (PMAX.)

S Power consumed by OUT 7V

P1 = (VCC * 7V) maximum load current of OUT 7V

S Power consumed by OUT 5V

P2 = (VCC * 5V) maximum load current of OUT 5V

S Power consumed by OUT 9V

P3 = (VCC * 9V) maximum load current of OUT 9V

S Power consumed internally by each circuit P4 = VCC supply current

PMAX. = P1 ) P2 ) P3 ) P4

FExternal dimensions (Units: mm)

198

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