BA5916FP-Y 데이터 시트보기 (PDF) - ROHM Semiconductor

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BA5916FP-Y

4-channel BTL driver for CD players and CD-ROMs

ROHM Semiconductor 

Optical disc ICs

FOperation notes

(1) The BA5916FP-Y contains a thermal shutdown cir-

cuit.

When the chip temperature reaches 175_C (Typ.), the

output current is muted. If the chip temperature then

drops below 150_C (Typ.), then the mute is released.

(2) By having the standby pin (pin 8) voltage open or

lowered to 0.5V or below, the drivers turn off and the IC

enters the power saving mode.

For normal operation, have the standby pin (pin 8) volt-

age pulled up to 2.0V or greater.

(3) If the voltage of the bias pin (pin 2) drops below 1.0V

(Typ.), outputs are muted. For normal conditions, have

the voltage above 1.4V.

FElectrical characteristic curves

BA5916FP-Y

(4) If the voltage of the thermal shutdown or bias pin

drops, the mute is activated; however, in these situations,

only the drivers are muted.

Also, the output pin voltage becomes the internal bias

voltage (approx. VCC*VF / 2).

(5) Connect a bypass capacitor (approx. 0.1µF) be-

tween the bases of the power supply pins of this IC.

(6) Even though the radiation fins are connected to

ground within the package, be sure to also connect them

to a ground externally as well.

734

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