Rainbow Electronics BA3933 - Manual (Page 5)

164
Regulator ICs BA3933
F
Circuit operation
(1) Timing chart
AUDIO 7.5V, MOTOR 9V, and COM 5V are output re-
gardless of MODE SW.
RADIO 5V rises when MODE SW is 1.4V (typical), and
CD 5V rises when MODE SW is 3.2V (typical).
(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 characteristics