AT5660
Preliminary Product Information
5-Channel Motor Driver for DVD/VCD
Features
˙2
channels of DC motor BTL driver
˙2
channels of BTL driver for coils with
current feedback
˙1
channels forward/reverse control DC motor
driver
˙Built-in
suspension function.
˙Built-in
thermal shutdown circuit.
˙Operating
voltage: 4.5V~13.2V
Description
The AT5660 is a 5-channel BTL driver IC. Two
of them can drive DC motors and two can drive
coils, such as the focus and tracking actuators of
a CD-ROM/DVD-ROM/DVD-Player system,
with current feedback. It also built-in one
channel bi-direction DC motor driver for Tray.
Applications
CD-ROM/DVD-ROM/CD-RW drives
DVD player.
Block Diagram
Aimtron reserves the right without notice to change this circuitry and specifications.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email:
service@aimtron.com.tw
1
AT5660
Preliminary Product Information
5-Channel Motor Driver for DVD/VCD
Pin Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Pin name
IN1
CAP1_1
CAP1_2
IN2
FB1
FWD
REV
VCC1
OUT5-
OUT5+
OUT2-
OUT2+
OUT1-
OUT1+
OUT4+
OUT4-
OUT3+
OUT3-
VCC2
FB4
VCTL
GND
IN3
CAP4_2
CAP4_1
IN4-
VBIAS
MUTE_1_2_3_4
Function
CH1(Focus coil) input
CH1 error amplifier filter capacitor connection 1
CH1 error amplifier filter capacitor connection 2
CH2(Sled driver) input
CH1(Focus coil) feedback pin
CH5 forward input
CH5 reverse input
Power Supply 1
CH5(Tray driver) output(-)
CH5(Tray driver) output(+)
CH2(Sled driver) output (-)
CH2(Sled driver) output (+)
CH1(Focus coil) output (-)
CH1(Focus coil) output (+)
CH4(Tracking coil) output (+)
CH4(Tracking coil) output (-)
CH3(Loader) output (+)
CH3(Loader) output (-)
Power Supply 2
CH4(Tracking coil) feedback pin
CH5 Speed control input
Ground
CH3(Loader) input
CH4 error amplifier filter capacitor connection 2
CH4 error amplifier filter capacitor connection 1
CH4 (Tracking driver) input
VREF input pin
Mute control for CH1,Ch2,CH3,CH4
Notes: The indicated polarities for the output pins are under the condition that all inputs are (+).
The power supplies for the driver output are PVcc1 for the loader, PVcc2 for focus and tracking
drivers, and Vcc for pre-block and sled driver. Therefore, make sure Vcc≧PVcc1,2.
Pin Out
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email:
service@aimtron.com.tw
2
AT5660
Preliminary Product Information
5-Channel Motor Driver for DVD/VCD
Ordering Information
Part number
AT5660H
Package
28-pin HSOP
Marking
AT5660H
Power Dissipation (Ta = 25
o
C)
Condition: mount on 50x50 mm2
t=1.0mm paper phenol PCB
Absolute maximum ratings (Ta = 25
o
C)
Parameter
Power supply voltage
Power dissipation
Operating temperature
Storage temperature
NOTE:*
1. Power dissipation reduces 13.6mW / °C for using above Ta=25°C
2. Do not exceed Pd and SOA.
Symbol
VCC1,2
P
d
T
opr
T
stg
Limits
13.5
1.7
-30~+80
-55~+150
unit
V
W
o
C
o
C
Recommended operating conditions (Ta = 25
o
C)
Parameter
Power supply voltage
Symbol
VCC1
VCC2
Limits
4.0~13.2
4.0~Vcc1
unit
V
V
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email:
service@aimtron.com.tw
3
AT5660
Preliminary Product Information
5-Channel Motor Driver for DVD/VCD
Electrical characteristics
(
unless otherwise noted, Ta = 25
o
C,VCC1 =12V, VCC2 =5V, VBIAS=2.5V, R
L1
= R
L2
=8Ω, R
L3
= R
L4
=12Ω
)
Parameter
Quiescent current
Mute quiescent current
Mute ON voltage
Mute OFF voltage
<Actuator driver>
Output current offset
Maximum output voltage
Gain
<Sled motor driver>
Output voltage offset
Maximum output voltage
Closed loop gain
<Loader motor driver>
Output voltage offset
Maximum output voltage
Maximum output voltage
Closed loop gain
Gain error
<Tray motor driver>
Maximum output voltage
Symbol Min.
I
QC
-
I
QSB
-
V
SBON
0
V
SBOFF
2.0
I
O1,2
V
O1,2
Gm
V
OFFSL
V
O3MAX
G
VSL
V
OFFLD
V
O4max1
V
O4max2
G
VLD
ΔG
VLD
V
O5max1
-6
3.6
1.3
-100
7.5
18.0
-50
7.5
3.6
13.5
0
-
3.8
-50
2.0
-
Typ.
18
-
-
-
-
4.0
1.5
0
9.0
20.0
0
9.0
4.0
15.5
1
6.0
-
0
-
-
Max.
27
5
0.5
-
6
-
1.7
100
-
22.0
50
-
-
17.5
2
-
4.2
50
-
0.8
Unit
Conditions
mA No Load
mA CH5 active
V
V
mA
V V
IN
= VBIAS
±1.5V
A/V V
IN
= VBIAS
±0.2V
mV
V
dB
mV
V
V
dB
dB
V
V
mV
V
V
V
IN
= VBIAS
±1.5V
V
IN
= VBIAS
±0.2V
V
IN
= VBIAS
±2.0V
V
IN
= VBIAS
±1.5V
VCC1=5V
V
IN
= VBIAS
±0.2V
V
IN
= VBIAS
±0.2V
RL5=45Ω, RVCTL=400Ω,
RL5=45Ω, RVCTL=0Ω,
VCC1=VCC2=5V
Output voltage offset
Input high level voltage
Input low level voltage
V
OFFTR
VIH
VIL
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email:
service@aimtron.com.tw
4
AT5660
Preliminary Product Information
5-Channel Motor Driver for DVD/VCD
Tray Motor Driver
Fig1.
Input
FWD
High
High
Low
Low
REV
High
Low
High
Low
OUT5+
Low
High
Low
Open
Ouput
OUT5-
Low
Low
High
Open
Status
Break
Forward
Reverse
Standby
Tray Motor Speed Control
The amplitude of the output voltage is controlled by VCTL(pin21). If you want to control
differential output voltage of the tray, insert external resistor RVCTL as shown in figure 1.
2F, No.10, Prosperity RD. II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878
http://www.aimtron.com.tw
Fax: 886-3-563-0879
Email:
service@aimtron.com.tw
5
MEMS sensors
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