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Regulator ics ba3935 – Rainbow Electronics BA3935 User Manual

Page 5

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171

Regulator ICs

BA3935

F

Circuit operation

(1)

Timing chart

AUDIO 9V, MOTOR 9.5V, and COM 5V are output re-
gardless of MODE SW.
RADIO 5V rises when MODE SW is 1.4V (typical), and
CD 5V and CD 7.5V rise when MODE SW is 3.2V (typi-
cal).

(2)

Estimate of allowable power dissipation

Except under transitional conditions, the power dissipa-
tion of this IC is 3W per unit at 25

_

C. See Fig. 1 for ther-

mal derating characteristics, including some cases
where heat sinks are used.

F

Thermal derating curve