Power driver for CD player
Description
BA5961FV
Optical disc ICs
Power driver for CD player
BA5961FV
BA5961FV is 1ch BTL driver IC for tilt coil driving used for DVD-ROM / DVD-RAM / CD-ROM / CD-RW.
2 general-purpose operational amplifiers are integrated into the small package, this IC has achieved a reduction of its size, and external components.
This IC can be used not only for tilt coil, but also for wide variety of applications.
!Applications DVD-ROM, DVD-RAM, CD-ROM, CD-RW
!Features 1) 1ch BTL driver.
2) SSOP-B20W power package enables the smallest configuration.
3) Separating VCC into Pre and Power can be make better power efficiency.
4) Built in level shift circuit.
5) Built in thermal-shut-down circuit.
6) Built in three operational amplifiers .
(Two general purpose operational amplifiers and one pre operational amplifier.
)
!Absolute maximum ratings (Ta=25°C)
Parameter Preblock power supply voltage Powerblock power supply voltage Power dissipation Operating temperature Storage temperature
∗ PCB (70mm×70mm×1.
6mm, glass epoxy) mounting.
Reduce power by 9.
44mW for each degree above 25°C.
Symbol PreVCC PowVCC Pd Topr Tstg
Limits 18 18 1.
18∗ −35~+85 −55~+150
Unit V V W °C °C
!Recommended operating conditions (Set the power supply voltage taking allowable dissipation into considering)
Parameter
Preblock power supply voltage Powerblock power supply voltage
Symbol PreVCC PowVCC
Min.
4.
3 4.
3
Typ.
5 5
Max.
13.
5 PreVCC
Unit V
1/7
BA5961FV
Optical disc ICs
!Block diagram
20
19
18
17
16
15
14
13
12
11
+ −
+ −
+ −
+ −
IN LEVEL SHIFT −
+
TSD
STAND-BY
+ −
+ −
Pre GND
Pow GND 1
Pow VCC
Pow GND 2
Pre VCC
1
2
3
4
5
6
7
8
9
10
TSD : Thermal shut down
!Pin descriptions
Pin No.
1 2 3 4 5 6 7 8 9 10 Pin name PreGND PowGND1 OUT+ OUT+ PowVCC OUT− OUT− PowGND2 PreVCC STBY Pre ground Power ground (For positive output) Driver positive output Driver positive output Powerblock power supply Driver negative output Driver negative output Power ground (For negative output) Pre blo...
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