ROHM BA5815FM Datasheet

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.

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)

9.9±0.3

7.5±0.2

1

0.1

1
.

±

0

2.2

18.5±0.2

1528

1

0.8 0.3Min.

5.15±0.1

14

0.35±0.1

HSOP-M28

00W098A

0.25±0.1

0.15

Applications

DVD, CD players

Absolute Maximum Ratings(Ta=25˚C)

–40

–55

Limits

13.5

2.2

~

~

∗

+85

+150

Parameter

Power supply voltage

Power dissipation

Operating temperature range

Storage temperature range

∗Derating : 17.6 mW/˚C for operation above Ta=25˚C (70×70×1.6mm) glass epoxy board

Vcc

Pd

Topr

Tstg

Recommended Operating Conditions(Ta=25˚C)

Parameter Min. Max. UnitTyp.Symbol

Power supply voltage Vcc 12.04.3 13.2 V

UnitSymbol

V

W

˚C
˚C

November, 2000

Electrical characteristics

(Unless otherwise noted; Ta=25˚C, Vcc1,2=12V, BIAS=1.65V, RL=8Ω)

Parameter

<BTL driver(CH1, CH2)>

Output offset voltage
Maximum output voltage

<BTL driver(CH3, CH4)>

Output offset voltage

Maximum output voltage
Voltage gain
<Pre–operational amplifier(CH3, CH4)>

Input offset voltage
Output high level voltage

Output low level voltage
<Loading driver>
Output saturation voltage 1

Output saturation voltage 2
Output "H" voltage gain

* This product is not designed for protection against radioactive rays.

Symbol

VOOF12

VOM12

VOOF34

VOM34

GVC

VOFOP

VOH

VOL

VSATL1

VSATL2

GVH

Min. Max. Unit Conditions

–50

7.7

–50

7.7

16.0

–6

11.5
—

0.7

1.0

7.4

Typ.

—

9.2

0

9.2

18.0

0

—
—

1.1

1.55

9.2

50

10.7

50

10.7

20.0

6

—

0.5

1.6

2.3

11.0

Application Circuit

FOCUS IN TRACKING IN

BIAS

mV

V

Vf=5V, Vr=0V

mV

V

dB

mV

V

BIAS=6V

V

BIAS=6V

V

Upper+Lower IL=200mA

V

Upper+Lower IL=500mA

dB

'L'=MUTE

MUTE

VCC2

28 27 26 25 24 23 22 21 20 19 18 17 16 15

–

+

–

+

8k

8k

16k

–

CH1 ~

CH4

MUTE

VCC2

16k

–
+

10k

–

+

10k

+–

LEVEL

SHIFT

+

LOADING LOGIC

FWD REV

¥3

1 2 3 4 5 6 7 8 9 10 11 12 13 14

LOADING

LOADING

LOGIC

VOLTAGE
CONTROL

FWD REV FWD REV

INTER–

FACE

SLED1

INPUT

F

INTER–

FACE

SLED2

INPUT

F

R

VCC1

VCC1

M

LOADING

LEVEL

SHIFT

+–

10k

–

+

10k

SLED2

ST

M

STEPPING

R

FOCUSTRACKLING

10k

10k

–

+

–

+

10k

10k

LEVEL

SHIFT

LEVEL

SHIFT

10k

10k

–

+

–

+

10k

10k

SLED1

10k

–

+

10k

+–

BA5815FM

+–

10k

–

+

10k