BA3950 Ver la hoja de datos (PDF) - ROHM Semiconductor

Número de pieza

componentes Descripción

Fabricante

BA3950

System power supply for CD player equipped audio systems

ROHM Semiconductor 

Regulator ICs

FApplication example

BA3950A

FOperation 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 characteristics (Fig. 4) and

the rough estimation of IC power dissipation given on a

separate page. If power dissipation exceeds the allow-

able limit, the functionality of IC will be degraded (such

as reduction of current capacity by increased chip tem-

perature). 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 valve 1µF or greater between GND and

each output pin. Also, be sure to connect a bypass ca-

pacitor between VCC and GND for further stabilization of

output. (To avoid the noise effect, layout the grounding

close to the IC.) Oscillation can occur if capacitance is

susceptible to temperature. We recommend using a tan-

talum electrolytic capacitor with minimal changes in ca-

pacitance.

204

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