BA6998FP Datasheet, PDF (1/7 Pages) Rohm – 4-channel BTL driver for CD

Optical disc ICs
4-channel BTL driver for CD
BA6998FP
BA6998FP
The BA6998FP ICs contain a 4-channel BTL driver, 5V regulator (which requires an externally connected PNP transistor),
multi-purpose operational amplifier, and reset output for use with CD players. Also equipped with an input pin for gain
adjustment for all channels of the driver block so that the gain can be adjusted to the desired value for your application.
Furthermore, a built-in level shift circuit exists to further reduce the amount of external components required.
zFeatures
1) 4ch Driver for BTL.
2) Small surface mounting power package (HSOP 28pin).
3) Adjustable gain by the external resistors.
4) Incorporates a thermal shut down circuit.
5) Incorporates a voltage regulator (5V) (PNP Tr is needed outside).
6) Incorporates an operational amplifier.
7) Incorporates a reset-output terminal.
zApplications
CD players, CD-ROM, and other optical disc equipment
zAbsolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Supply voltage
VCC
13.5
V
Power dissipation
PD
1.7 ∗
W
Operating temperature
Topr
−35 to +85
°C
Storage temperature
Tstg
−55 to +150
°C
∗ Derating is done at 13.6mW/°C for operation above Ta=25°C.
On less than 3% (percentage occupied by copper foil), 70 x 70mm² , t =1.6mm, glass epoxy mounting.
zRecommended operating conditions (Ta=25°C)
Parameter
Symbol
Limits
Unit
Supply voltage
VCC
6 to 9 ∗
V
∗ The driver blocks operate on condition that supply voltage is over 5.5V.
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