734
Optical disc ICs BA5916FP-Y
Operation notes
(1) The BA5916FP-Y contains a thermal shutdown cir-
cuit.
When the chip temperature reaches 175C (Typ.), the
output current is muted. If the chip temperature then
drops below 150C (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.
(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. V
CCVF/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.
Electrical characteristic curves
