ICs for Compact Disc/CD-ROM Player
AN8813NSB
4-channel driver IC for optical disk drive
■ 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.
■ 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.
■ Applications
• CD/CD-ROM drive
• DVD/DVD-ROM drive
■ Block Diagram
18.4±0.2
(5.15)
28 22 21
17 814
(1.2)
(4.8)
(6.4)
0.8
15
8.3±0.22.7±0.20.1±0.1
+0.10
0.35
–0.05
Seating plane
HSOP042-P-0400
+0.10
10.93±0.30
Unit: mm
(1.315)
–0.05
0.30
0° to 10°
0.65±0.20
21
22
24
23
1
2
1
PV
2
3.3 V
reg.
PV
CC
19
PGND1
CC1
VO1+
182017
Direction
detector
25
IN1
VO1−
16
Direction
detector
26
IN2
CC2
VO2+
VO2−
VO3+
VO3−
VO4+
VO4−
PV
15
Direction
detector
14
13
Direction
changeover
12
11
9
1
PV
CC
2
SV
CC
detector
Thermal
protection
8
7
SV
CC
circuit
Fin
GND
28
V
REF
Decoder
10
5
MC1
6
MC2
27
IN3
4
IN4
PGND2
1
AN8813NSB ICs for Compact Disc/CD-ROM Player
■ 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 (SVCC)
8 1/2 PVCC 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
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 PVCC 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
input pin
REF
Fin GND pin
■ Absolute Maximum Ratings
Parameter Symbol Rating Unit
Supply voltage SV
Supply current I
2
Power dissipation
Operating ambient temperature
Storage temperature
Note)*1: Except for the power dissipation, operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.
2: Ta = 85°C. For the independent IC without a heat sink.
*
Referring to "■ Application Circuit Example", following the allowable power dissipation characteristic curve of "■
Application Notes".
*
1
*
1
*
CC
CC
P
D
T
opr
T
stg
18 V
mA
542 mW
−30 to +85 °C
−55 to +150 °C
■ Recommended Operating Range
Parameter Symbol Range Unit
Supply voltage SVCC , PV
CC1
, PV
CC2
4.5 to 14 V
2