ROHM BA5961FV Technical data
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 Symbol Limits Unit
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.
PreV
PowV
Pd
Topr
Tstg
CC
CC
18
18
∗
1.18
−35~+85
−55~+150
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 Min. Typ. Max. Unit
PreV
PowV
4.3
CC
4.3
CC
13.5
5
PreV
5
CC
V
1/7
Optical disc ICs
!!!!
Block diagram
BA5961FV
11
12
13
14
15
16
17
18
19
20
−
+
TSD
Pre
Pow
GND
GND 1
2
1
!!!!Pin descriptions
Pin No. Pin name Functions
10
1
2
3
4
5
6
7
8
9
PreGND
PowGND1
OUT+
OUT+
PowV
OUT−
OUT−
PowGND2
PreV
STBY
Pre ground
Power ground (For positive output)
Driver positive output
Driver positive output
Powerblock power supply
CC
Driver negative output
Driver negative output
Power ground (For negative output)
Pre block power supply
CC
Stand-by control input
Pre
V
CC
9
−
+
STAND-BY
10
−
+
IN
LEVEL SHIFT
+
−
+
Pow
V
CC
5
4
3
−
+
−
−
+
Pow
GND 2
8
7
6
TSD : Thermal shut down
Pin No. Pin name Functions
11
12
13
14
15
16
17
18
19
20
OP3+
OP3−
OP3OUT
OP2+
OP2−
OP2OUT
OP1+
OP1−
IN
BIAS
OP-AMP3 positive input
OP-AMP3 negative input
OP-AMP3 output
OP-AMP2 positive input
OP-AMP2 negative input
OP-AMP2 output
OP-AMP1 positive input
OP-AMP1 negative input
OP-AMP1 output and driver input
Bias input
2/7
Optical disc ICs
!!!!
Input output circuits
BA5961FV
positive input
11, 14, 17pin
Pre V
13, 16pin
OP-AMP input
CC
OP-AMP output
Pre V
CC
Pre V
Pre V
Driver output
CC
Pre V
CC
1k1k
negative input
12, 15, 18pin
positive
output
3, 4pin
negative
output
6, 7pin
Pow V
CC
10k
10k
10k
BIAS input
Pre V
CC
CC
Pre V
20pin
24.3k
CC
50k
100k
Pre-OP-AMP output and driver input Stand-by control input
Pre V
19pin
24.3k
CC
Pre V
CC
Pre V
CC
10pin
Pre V
CC
100k
100k
3/7
Loading...