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207

Regulator ICs

System power supply for CD player-

equipped audio systems

BA3963

With 5V and 7V outputs and a reset output that detects the 5V output, the BA3963 power supply IC is best suited for

CD player-equipped audio systems.

Applications

CD player-equipped audio systems

Features

1) A 5V output, a 7V output, and a reset output are built

in.

2) All output circuits use a PNP transistor with a low sat-

uration voltage.

3) Current limit circuit protects the IC against short-cir-

cuiting damage.

4) Thermal protection circuit prevents heat damage to

the IC.

5) Compact SIP-M12 package allows a large power dis-

sipation.

Absolute maximum ratings (Ta = 25C)

Recommended operating conditions (Ta = 25C)

1 2 3 4 5 6 7 8 9

Regulator ICs 1
Regulator ICs BA3963 2

Indice de contenidos

Pagina 1 - Regulator ICs

207Regulator ICsSystem power supply for CD player-equipped audio systemsBA3963With 5V and 7V outputs and a reset output that detects the 5V output, th

Pagina 2 - Regulator ICs BA3963

208Regulator ICs BA3963Block diagramPin descriptions

Pagina 3

209Regulator ICs BA3963Input / output circuits

Pagina 4

210Regulator ICs BA3963Electrical characteristics (unless otherwise noted, Ta = 25C and VCC = 12V)

Pagina 5

211Regulator ICs BA3963Circuit operationOUT 5V rises when MODE 1 is 1.4V (Typ.), and OUT 7Vrises when MODE 2 is 1.4V (Typ.). The reset output riseswi

Pagina 6

212Regulator ICs BA3963

Pagina 7

213Regulator ICs BA3963Application exampleOperation notes(1) Operating power supply voltageWhen operating within proper ranges of power supplyvoltag

Pagina 8

214Regulator ICs BA3963(4) Overcurrent protection circuitAn overcurrent protection circuit is installed in each out-put system, based on the respectiv

Pagina 9

External dimensions (Units: mm)215Regulator ICs BA3963

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