ICs for Compact Disc/CD-ROM Player
1
AN8813NSB
4-channel driver IC for optical disk drive
s
Overview
The AN8813NSB is a 4-channel driver IC of the
BTL method. Ch.1 is used only for the loading
motor with little gain dispersion.
s
Features
For the loading motor channel, there are 4 modes,
that is, forward rotation, reverse rotation, brake
and standby modes, and you can select a mode
among them. The gain of it is fixed to 6 dB (
0.5
dB) with a small dispersion among the products.
3.3 V supply voltage is available due to an exter-
nal PNP-tr.
Driver I/O gain setting is possible with an addi-
tional external resistor
Since the output and input lines are separated and
respectively collected together, pattern designing
is relatively easy.
s
Applications
CD/CD-ROM drive
DVD/DVD-ROM drive
HSOP042-P-0400
Unit: mm
1
7
8
14
(1.315)
0.650.20
28
22
21
(4.8)
(6.4)
(1.2)
(5.15)
18.40.2
8.30.2
2.70.2
0.10.1
10.930.30
15
0.35
+0.10
0.05
0.30
+0.10
0.05
0.8
Seating plane
0
to 10
s
Block Diagram
25
19
26
10
5
18
20
17
16
15
14
13
12
11
9
6
4
27
22
21
24
23
1
2
VO
1
+
PV
CC1
PGND1
IN1
IN2
IN3
IN4
PGND2
MC1
MC2
V
REF
GND
SV
CC
VO
1
-
VO
2
+
VO
2
-
VO
3
+
VO
3
-
VO
4
+
VO
4
-
PV
CC2
8
7
Fin
28
Direction
detector
PV
CC
3.3 V
reg.
Direction
detector
Direction
changeover
SV
CC
detector
Thermal
protection
circuit
Decoder
Direction
detector
2
1
PV
CC
2
1
AN8813NSB
ICs for Compact Disc/CD-ROM Player
2
Pin No.
Description
15
Motor driver-2 reverse rotation output pin
16
Motor driver-2 forward rotation output pin
17
Motor driver-1 reverse rotation output pin
18
Motor driver-1 forward rotation output pin
19
Driver GND pin 1 (PGND1)
20
Driver power supply pin 1 (PV
CC1
)
21
1/2 PV
CC
output pin 1
22
Op-amp. non-inverted input pin
23
Op-amp. inverted input pin
24
Op-amp. output pin
25
Motor driver-1 input pin
26
Motor driver-2 input pin
27
Motor driver-3 input pin
28
V
REF
input pin
Fin
GND pin
s
Pin Descriptions
Pin No.
Description
1
Base control pin for an external transistor
of 3.3 V regulator
2
3.3 V regulator output monitor pin
3
N.C. pin
4
Motor driver-4 input pin
5
Motor driver-4 control pin 1
6
Motor driver-4 control pin 2
7
Power supply pin (SV
CC
)
8
1/2 PV
CC
output pin 2
9
Driver power supply pin 2 (PV
CC2
)
10
Driver GND pin 2 (PGND2)
11
Motor driver-4 reverse rotation output pin
12
Motor driver-4 forward rotation output pin
13
Motor driver-3 reverse rotation output pin
14
Motor driver-3 forward rotation output pin
Parameter
Symbol
Range
Unit
Supply voltage
SV
CC
, PV
CC1
, PV
CC2
4.5 to 14
V
s
Recommended Operating Range
Parameter
Symbol
Rating
Unit
Supply voltage
SV
CC
18
V
Supply current
I
CC
mA
Power dissipation
*2
P
D
542
mW
Operating ambient temperature
*1
T
opr
-
30 to
+
85
C
Storage temperature
*1
T
stg
-
55 to
+
150
C
s
Absolute Maximum Ratings
Note) *1: Except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for T
a
=
25
C.
*2: T
a
=
85
C. For the independent IC without a heat sink.
Referring to "s Application Circuit Example", following the allowable power dissipation characteristic curve of "s
Application Notes".
ICs for Compact Disc/CD-ROM Player
AN8813NSB
3
s
Electrical Characteristics at T
a
=
25
C
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Current consumption with no load
I
TOT
V
CC
=
8 V, V
IN4
=
1 V
5
10
15
mA
Motor driver 1 to motor driver 3
Input offset voltage
V
IOF
V
CC
=
8 V, R
L1
to R
L
3
= 8
,
-
10
0
10
mV
R
1
to R
3
= 10
k
Output offset voltage
V
OOF
V
CC
=
8 V, R
L1
to R
L
3
= 8
,
-
50
0
50
mV
R
1
to R
3
= 10
k
Gain
G
V
CC
=
8 V, R
L1
to R
L
3
= 8
,
18.0
20.0
22.0
dB
R
1
to R
3
= 10
k
Maximum output amplitude (
+
)
V
L
+
V
CC
=
8 V, R
L1
to R
L
3
= 8
,
4.4
5.0
V
R
1
to R
3
= 10
k
Maximum output amplitude (
-
)
V
L
-
V
CC
=
8 V, R
L1
to R
L
3
= 8
,
-
5.0
-
4.4
V
R
1
to R
3
= 10
k
Motor driver 4 For loading motor
Input bias current
I
IN4
V
CC
=
8 V, V
IN4
=
1 V
150
500
nA
Forward rotation gain
G
4
+
V
IN4
=
1 V, V
CC
=
8 V
5.0
5.5
6.0
dB
R
L4
=
8
, V
MC
=
5 V
Reverse rotation gain
G
4
-
V
IN4
=
1 V, V
CC
=
8 V
5.0
5.5
6.0
dB
R
L4
=
8
, V
MC
=
5 V
Maximum output amplitude (
+
)
V
4L
+
V
IN4
=
4 V, V
CC
=
8 V
4.4
5.0
V
R
L4
=
8
, V
MC
=
5 V
Maximum output amplitude (
-
)
V
4L
-
V
IN4
=
4 V, V
CC
=
8 V
-
5.0
-
4.4
V
R
L4
=
8
, V
MC
=
5 V
Output leak current at standby
I
OL(STB)
V
IN4
=
1 V, V
CC
=
8 V
10
A
R
L4
=
8
, V
MC
=
5 V
Output offset voltage at braking V
OF(BRK)
V
IN4
=
1 V, V
CC
=
8 V
-
80
0
80
mV
R
L4
=
8
, V
MC
=
5 V
MC1 pin, MC2 pin
V
MCH
V
IN4
=
1 V, V
CC
=
8 V
2.0
V
high-level threshold voltage
R
L4
=
8
MC1 pin, MC2 pin
V
MCL
V
IN4
=
1 V, V
CC
=
8 V
0.3
V
low-level threshold voltage
R
L4
=
8
Reset circuit
Reset operation release supply
V
RST
I
IN
=
10
A, R
1
to R
3
=
10 k
3.0
3.2
3.3
V
voltage
3.3 V regulator
Output voltage
V
REG
V
CC
=
8 V
3.1
3.3
3.5
V
Output load fluctuation
V
R
V
CC
=
8 V
-
50
0
50
mV
Supply voltage fluctuation
V
V
V
CC
=
8 V to 12 V
-
5
0
5
mA
Op-amp.
Input offset voltage
V
OF
V
CC
=
8 V
-
5
0
5
mV
Input bias current
I
BOP
V
CC
=
8 V
150
500
nA
AN8813NSB
ICs for Compact Disc/CD-ROM Player
4
s
Electrical Characteristics at T
a
=
25
C (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
OP-amp. (continued)
High-level output voltage
V
OH
V
CC
=
8 V
6.0
V
Low-level output voltage
V
OL
V
CC
=
8 V
1.7
V
Output driving current sink
I
SIN
V
CC
=
8 V
2.0
mA
Output driving current source
I
SOU
V
CC
=
8 V
2.0
mA
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Thermal protection circuit
Operating temperature
T
THD
180
C
equilibrium value
Operating temperature
T
THD
45
C
hysteresis width
Motor driver 4
IN4 pin input setting range
V
IN4
0.5
2.5
V
Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
s
Usage Notes
1. This IC has no output short-circuit protection circuit and is likely to emit smoke and break down when there is a
short-circuit between output and V
CC
or output and GND.
2. An appropriate prior study should be done for use of dip soldering.
s
Application Notes
P
D
T
a
curves of HSOP042-P-0400
P
D
T
a
0.000
0
25
50
75
100
125
150
2.500
1.500
1.000
2.240
2.000
1.042
0.500
Ambient temperature T
a
(
C)
Po
wer dissipation
P
D
(W)
Mounted on standard board
(glass epoxy:
75 mm
75 mm
t1.6 mm)
R
th(j-a)
=
55.8
C/W
Independent IC
without a heat sink
R
th(j-a)
=
119.9
C/W
ICs for Compact Disc/CD-ROM Player
AN8813NSB
5
s
Application Circuit Example
1
3
4
5
6
7
Fin
12
13
14
8
9
10
11
15
17
16
19
18
21
22
Fin
24
23
26
28
20
2
25
27
V
2
V
4
V
3
V
1
R3
R2
R1
RL1
RL2
RL4
RL3
PV
CC1
PV
CC2
V
REF
SV
CC
5 V
When the AN8813NSB is use, take into account the following cautions and follow the power dissipation characteristic curve.
1. Load current I
P1
flowing into load RL1, RL2 is supplied through pin 20.
I
P1
=
|
V
18
-
V
17
|
+
|
V
16
-
V
15
|
R
L1
R
L2
2. Load current I
P2
flowing into load RL3, RL4 is supplied through pin 9.
I
P2
=
|
V
14
-
V
13
|
+
|
V
12
-
V
11
|
R
L3
R
L4
3. Dissipation increase (
P
D
) inside the IC (power output stage) caused by loads RL1, RL2, RL3 and RL4 is as follows:
P
D
=
(PV
CC1
-
|
V
18
-
V
17
|
)
|
V
18
-
V
17
| +
(
PV
CC1
-
|
V
16
-
V
15
|
)
+ |
V
16
-
V
15
|
R
L1
R
L2
=
(PV
CC2
-
|
V
14
-
V
13
|
)
|
V
14
-
V
13
| +
(
PV
CC2
-
|
V
12
-
V
11
|
)
|
V
12
-
V
11
|
R
L3
R
L4
4. Dissipation increase (
P
S
) inside the IC (signal block supplied from pin 7) caused by loads RL1, RL2, RL3 and RL4
comes roughly as follows:
P
S
=
3
{
V
1
(2
SV
CC
+
|
V
18
-
V
17
|
) +
V
2
(2
SV
CC
+
|
V
16
-
V
15
|
)
R
1
R
2
+
V
3
(2
SV
CC
+
|
V
14
-
V
13
|
)} +
V
4
(3
SV
CC
+
|
V
12
-
V
11
|
), where R
4
: Internal resistor 12.3 k
R
3
R
4
5. Dissipation increase in a driver operating mode is
P
D
+
P
S
.
6. Allowable power dissipation without load (P
D1
) can be found as follows:
P
D1
=
SV
CC
I
(SVCC)
+
PV
CC1
I
(PVCC1)
+
PV
CC2
I
(PVCC2)
7. Allowable power dissipation in a load operating mode (P
D
) comes roughly as follows:
P
D
=
P
D1
+
P
D
+
P
S
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