Rainbow Electronics BA3963 - Manual (Page 7)

213
Regulator ICs BA3963
F
Application example
F
Operation notes
(1) Operating power supply voltage
When operating within proper ranges of power supply
voltage and ambient temperature, most circuit functions
are guaranteed. Although the rated values of electrical
characteristics cannot be absolutely guaranteed, char-
acteristic values do not change drastically within the
proper ranges.
(2)
Power dissipation (Pd)
Refer to the heat reduction curves (Fig. 5) and the rough
estimation of IC power dissipation given on a separate
page. If power dissipation exceeds the allowable limit,
the functionality of IC will be degraded (such as reduction
of current capacity by increased chip temperature).
Make sure to use the IC within the allowable range of
power dissipation with a sufficient margin.
(3) Preventing oscillation at each output
To stop oscillation of output, make sure to connect a ca-
pacitor having a capacitance of 10
µ
F or greater between
GND and each output pin. Also, the 5V output ripple re-
jection is improved by connecting a capacitor having a
capacitance of 1
µ
F or greater between pins 4 and 6.
When connecting the capacitors, be sure to connect the
polarities correctly. Oscillation of output can occur if ca-
pacitance is susceptible to temperature. We recommend
using a tantalum electrolytic capacitor with minimal
changes in capacitance.