Rainbow Electronics BA3935 - Manual (Page 5)

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