ROHM BA5815FM

00W098A
5-channel driver for CD/DVD players
BA5815FM
Description
Dimension (Units : mm)
The BA5815FM is a power driver IC for 5-channel
CD and DVD players. Two channels incorporate
filters and can connect PWM input directly.
The additional 2 channels incorporate a standard
operational amplifier. It can reduce the external
components greatly. In the loading driver, output
voltage can be adjusted to each device.
18.5±0.2
0. 1 1
2.2±0. 1
1
5.15±0. 1
0.8
14
0.35±0. 1
0.25±0. 1
9.9±0.3
15
7.5±0.2
28
0.3Min.
0. 15
Features
1) 4-channel BTL driver and 1-channel reversible driver
2) 2 channels are PWM input direct-coupled type.
(Built-in primary filter)
3) 2 channels have standard operational amplifiers.
4) The device can be miniaturized due to the adoption of
HSOP-M28 power package.
5) Built-in thermal shut down circuit
6) Wide dynamic range(9.2V(Typ.) at Vcc=12V, RL=8Ω)
HSOP-M28
Applications
DVD, CD players
Absolute Maximum Ratings(Ta=25˚C)
Symbol
Limits
Unit
Power supply voltage
Vcc
13.5
V
Power dissipation
Pd
Parameter
2.2
∗
W
Operating temperature range
Topr
–40
~
+85
Storage temperature range
Tstg
–55
~
+150
˚C
˚C
∗Derating : 17.6 mW/˚C for operation above Ta=25˚C (70×70×1.6mm) glass epoxy board
Recommended Operating Conditions(Ta=25˚C)
Parameter
Power supply voltage
Symbol
Min.
Typ.
Max.
Unit
Vcc
4.3
12.0
13.2
V
November, 2000
Electrical characteristics
(Unless otherwise noted; Ta=25˚C, Vcc1,2=12V, BIAS=1.65V, RL=8Ω)
Parameter
Symbol
Min.
Output offset voltage
VOOF12
–50
Maximum output voltage
VOM12
7.7
Output offset voltage
VOOF34
–50
Maximum output voltage
VOM34
GVC
Typ.
Max.
Unit
—
50
mV
9.2
10.7
V
0
50
mV
7.7
9.2
10.7
V
16.0
18.0
20.0
dB
Conditions
<BTL driver(CH1, CH2)>
Vf=5V, Vr=0V
<BTL driver(CH3, CH4)>
Voltage gain
<Pre–operational amplifier(CH3, CH4)>
VOFOP
–6
0
6
mV
VOH
VOL
11.5
—
—
—
—
0.5
V
V
BIAS=6V
BIAS=6V
VSATL1
0.7
1.1
1.6
V
Upper+Lower IL=200mA
V
Upper+Lower IL=500mA
Input offset voltage
Output high level voltage
Output low level voltage
<Loading driver>
Output saturation voltage 1
1.55
VSATL2
1.0
2.3
9.2
Output "H" voltage gain
GVH
7.4
11.0
* This product is not designed for protection against radioactive rays.
Output saturation voltage 2
dB
Application Circuit
FOCUS IN
TRACKING IN
BIAS
'L'=MUTE
MUTE
TRACKLING
FOCUS
VCC2
26
25
24
23
22
21
–
+
–
+
8k
–
+
16k
–
+
18
17
16
10k
10k
VCC2
10k
16k
–
15
10k
10k
10k
10k
10k
+
LEVEL
SHIFT
–
BA5815FM
INTER–
FACE
REV
LEVEL
SHIFT
F
R
INTER–
FACE
–
LEVEL
SHIFT
–
R
10k
10k
10k
¥3
–
+
10k
10k
1
2
3
4
5
6
7
8
9
10
11
12
SLED2
VCC1
LOADING
LOGIC
LOADING
VOLTAGE
CONTROL
FWD
REV
SLED1
INPUT
FWD
REV
SLED2
INPUT
M
LOADING
ST
M
STEPPING
10k
–
+
–
+
VCC1
+
+
–
+
FWD
+
LEVEL
SHIFT
F
LOADING LOGIC
–
+
8k
19
–
+
CH1 ~
CH4
MUTE
20
–
+
27
–
+
28
10k
10k
13
14
SLED1