5CH BTL Motor Drive IC
Semiconductor
http:// www.auk.co.kr
S3052
Description
The S3052 is 5 Channel BTL DC motor driver IC for controlling the motors
and actuators of DVD-Player and it contain 2 independent precision voltage
regulators with adjustable range from 1.24V to 4V.
Furthermore, it offer a free comparator for spindle motor back emf detection.
It supports various applications with pb free package.
Application
◈ CD-Player
SSOPH-28N
◈ CD-ROM
◈ DVD-Player
With Heat-sink
Features and Benefits
◈ 1 Channel is bi-directional DC motor driver for tray.
ORDERING INFORMATION
◈ 4 Channels are voltage-type BTL drivers for
actuators, sled and spindle motors.
◈ Built in Level shift circuit.
Product
Marking
Package
S3052
S3052
SSOPH-28N
◈ Built in Thermal shut down circuit.
◈ Built in Mute mode.
◈ Built in 2 Regulator controllers.
Adjustable range [ 1.25V to 4V ]
▲ Marking Detail Information
◈ A Free comparator
Spindle motor back emf detection
S3052(①)
YYWW(②)
◈ Dual Actuator drivers
A general purpose input OP Provides differential input for signal addition.
The output structure is two power OPAMPS in bridge configuration.
① Device Code
② Year & Week Code
◈ Sled motor driver
A general purpose input OP provides differential input for signal addition.
The output structure is one power OPAMP in bridge configuration.
◈ Spindle driver
Single input linear BTL driver. The output structure are two power
OPAMPS in bridge configuration.
◈ Tray Bi-directional driver
The DC motor driver supports forward/reverse control for tray motor.
KSD-I7A002-003
SEPT., 2010 REV. 03
1
-+
VINTK TRB_2 OPOUT VINLD GND
GND
7
10K
22
BIAS
6
23
MUTE
-+
24
26
25
27
10K
+-
17.6K
10K
5
25K
28
MUTE
25K
4
PGND
8K
PGND
9
15
Actuator
16
Driver(6X)
17
Spindle
18
Driver(4X)
Actuator
Vcc2
Vcc1
14
Sled
13
Driver(6X)
12
Driver(4X)
11
Vcc3
VCC2 VOLD- VOLD+ VOTK- VOTK+
19
10
Vcc2
DRIVER
TRAY
15K
20
VCTL OPIN
21
Pre-DRV
Vcc1
8
+ -
- +
VCC1 VOTR- VOTR+ VOSL+ VOSL- VOFC- VOFC+
2
KSD-I7A002-003
Thermal
25K
3
REV
SEPT., 2010 REV. 03
Shut down
+-
10K
2
VINFC TRB_1 REGO2 VINSL+ REGO1 FWD
1
+-
S3052
◈ Internal Block Diagram & Pin Assignment
S3052
◈ Pin Description
NO
SYMBOL
I/O
DESCRIPTION
1
VINFC
I
Input for focus driver
2
TRB_1
O
Connect to external transistor base
3
REG02
I
Regulator voltage feedback, Connect to external bias resistor.
4
VINSL
I
Input for sled driver
5
REG01
I
Regulator voltage feedback, Connect to external bias resistor.
6
FWD
I
Tray driver input signal for forward direction
7
REV
I
Tray driver input signal for reverse direction
8
VCC1
PWR
9
VOTR-
O
Tray driver output (-)
10
VOTR+
O
Tray driver output (+)
11
VOSL+
O
Sled driver output (+)
12
VOSL-
O
Sled driver output (-)
13
VOFC-
O
Focus driver output (-)
14
VOFC+
O
Focus driver output (+)
15
VOTK+
O
Tracking driver output (+)
16
VOTK-
O
Tracking driver output (-)
17
VOLD+
O
Spindle driver output (+)
18
VOLD-
O
Spindle driver output (-)
19
VCC2
PWR
20
OPIN
I
Comparator input
21
VCTL
I
Speed control input of tray driver
22
GND
-
Ground
23
VINLD
I
Input for spindle driver
24
OPOUT
O
Comparator output
25
TRB_2
O
Connect to external transistor base
26
VINTK
I
Input for tracking driver
27
BIAS
I
Input for reference voltage
28
MUTE
I
Input for mute control
VCC for pre-drive block and power block of sled & tray
VCC for power block of focus, tracking and spindle
Symbol of + and – [ output of drives ] means polarity to input pin.
For example : if voltage level of pin1 is high, pin14 is high
KSD-I7A002-003
SEPT., 2010 REV. 03
3
S3052
◈ Absolute Maximum Ratings ( Ta = 25℃ )
Parameter
Symbol
Limits
Unit
Supply Voltage
VCC1/VCC2
13.5
V
Power Dissipation
Pd
1.7
W
Operate Temperature Range
Topr
-35 ~ +85
℃
Storage Temperature Range
Tstg
-55 ~ +150
℃
Symbol
Limits
Unit
VCC1
4.3 ~ 13.2
V
VCC2
4.3 ~ VCC1
V
[ Pd ] When mounted on a 70mm×70mm×1.6mm glass epoxy board.
Reduced by 13.6mW for each increase in Ta of 1℃
[ Tstg ] Should not exceed Pd or SOA and Tj=150℃ values
◈ Guaranteed Operating Conditions ( Ta = 25℃ )
Parameter
Power Supply Voltage
◈ Power Dissipation Curve [ Pd ]
◈ 70mm×70mm×1.6mm glass epoxy board .
◈ De-rating is done at 13.6mW/℃ for operating above Ta=25℃
KSD-I7A002-003
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4
S3052
◈ Electrical characteristics
( Unless otherwise specified Ta=25℃, Vcc1=12V, Vcc2=5V, BIAS=2.5V, RL=8Ω/12Ω/20Ω/45Ω)
NO
Characteristics
Symbol
1
Quiescent current
Iqc
2
Voltage for Mute on
Vston
3
Voltage for Mute off
Vstoff
< Actuator Driver: Focus, Tracking >
4
Output Offset Voltage
Voo
5
Maximum output Voltage
Vom
6
Voltage Gain
Gv
< Sled Motor Driver >
7
Output Offset Voltage
Voosl
8
Maximum output Voltage
Vomsl
9
Voltage Gain
Gvsl
< Spindle Motor driver >
10 Output Offset Voltage
Voold
11 Maximum output Voltage
Vomld
12 Voltage Gain
Gvld
< Tray Motor driver >
13
Output saturation Voltage1
14
Output saturation voltage
between F&R
15
Output saturation Voltage2
Output adjustable gain on
"H" side voltage
< Tray Motor driver input logic >
17 High level input voltage
18 Low level input voltage
19 High level input current
< Regulator >
16
20
Output voltage
21 Load Regulation
22 Line Regulation
< Comparator >
Vsat1
△Vsat1
Specification
Condition
Unit
MIN.
0
2
TYP.
30
-
MAX.
0.5
5
mA
V
V
@12Ω Load
VIN=BIAS+0.2Vpp ac @1khz
-50
3.6
21.5
4
23.5
50
25.5
mV
V
dB
@20Ω Load
VIN=BIAS+0.2Vpp ac @1khz
-100
7.5
18.0
9.0
20.0
100
22.0
mV
V
dB
@8Ω Load
VIN=BIAS+0.2Vpp ac @1khz
-50
13.5
3.5
15.5
50
17.5
mV
V
dB
0.7
1.1
1.5
V
-
-
0.1
V
1
1.55
2.2
V
Upper + Lower saturation
IL=200mA
Output saturation voltage1
between FWD and REV
Vsat2
Upper + Lower saturation
IL=500mA
VvtrH
VCTL=2V
7.4
9.2
11
dB
VIH
VIL
IIH
VFWD=VREV=5V
1.5
-0.3
-
180.0
Vcc
0.5
270.0
V
V
uA
Vreg
IL=500mA
Vld
Vle
IL=0~500mA
Vcc=4.5~8V, IL=500mA
2.35
3.1
-50.0
-25.0
2.5
3.3
0.0
0.0
2.65
3.5
50.0
25.0
mV
mV
-
-
Vcc
mV
-
-
0.5
V
0.80
1.0
-
mA
25.00
35.0
-
mA
23
High level output voltage
VOH
24
Low level output voltage
VOL
25
Output Sink Current
Isink1
Isink2
Vcc1=VRC=5V
VOLD+=3V,OPIN=3V
Vcc1=VRC=5V
VOLD+=3V,OPIN=1V
Vcc1=VRC=5V,VOLD+=3V,
OPIN=1V,RL=4.7k
Vcc1=VRC=5V,VOLD+=3V,
OPIN=1V
V
[Regulator] It is based on STA353 PNP application. Vreg can be set to other voltage with 5% deviation.
KSD-I7A002-003
SEPT., 2010 REV. 03
5
S3052
Application Information
1. Thermal Shut Down Circuit
Focus, Tracking, Tray, Spindle,
Sled, Con. Current
Reg. Bandgap
Voltage [ 1.25V ]
R2
R3
IHys
R1
R4
The built-in thermal shutdown circuit mutes the output current when the chip temperature
reaches 175℃ (typ.). The hysteresis is set to 25℃ (typ.) by IHys,
so the circuit will start up again when the chip temperature falling to 150℃ (typ.)
2. Regulator Circuit
Internal Circuit
Ref. Voltage
5V
External Circuit
STA353
+
[ 1.25V ]
Vout
R1
R2
-. The Ref. Voltage is generated by the internal circuit [Band gap reference]
-. It needs to attach an external power TR [* AUK PNP Power TR : STA353 *]
-. The output voltage of the regulator is calculated depend on R1 and R2’s values.
Vout = (1+ R1/R2) × 1.25
3.3V [R1: 16.5K / R2 : 10K]
2.5V [R1: 10K / R2 : 10K]
KSD-I7A002-003
SEPT., 2010 REV. 03
6
S3052
3. Bias & Mute Circuit
Focus, Tracking, Sled
Spindle Con. Current
Mute
Bias
R1
R3
R2
R4
Bias pin (pin 27) should be pulled up to more than 1.2V. In case the bias pin’s voltage is pulled down
below 1.2V (typ.), the output current is muted, also Mute pin is same as Bias pin.
[Except Tray, Regulator, Comparator, those are only controlled by Vcc1. ]
4. Comparator Circuit
VCC
Pull up Resistor
External Circuit
OPOUT
OPIN
+
VOLD+
Internal Circuit
-
R1
R2
The Comparator is construction of open collector with external pulled up Resister for observation
status of spindle motor.
KSD-I7A002-003
SEPT., 2010 REV. 03
7
S3052
5. BTL Driver Circuits [Focus, Tracking, Sled, Spindle]
R4
VI-Converter
R3
Level Shift
Va(+)
Iconv
Vin
R1
Bias
-
-
R2
+
Vo(+)
+
PAMP1
Iconv(+)
+
-
Iconv(-)
Vo(-)
+
PAMP2
R5
Va(-)
R6
-
Pref
R7
BTL Driver Circuits are composed of VI-Converter, Level Shifter and Output power AMP.
VI-Converter converts voltage of Vin into current [Iconv ]
Iconv = (Vin – Bias ) / R1[10KΩ]
[ Closed loop Voltage Gain Calculation ]
Va(+) = (R2×Iconv ) + Pref
Va(-) = (-R5×Iconv) + Pref
Vo(+) = Va(+)×(1 + R4/R3 )
Vo(-) = Va(-)×( 1 + R7/R6 )
[ * R2 = R5 , R3 = R6, R4 = R7 * ]
Focus, Tracking closed loop Voltage Gain [ R2 = 25KΩ, R3 = 10KΩ, R4 = 20KΩ ]
Gain = 20 log [{ Vo(+) - Vo(-) } / (Vin - Bias) ]
= 20 log [{ Va(+)×( 1 + R3/R4 ) - Va(-)×( 1 + R6/R7 ) } / ( Vin – Bias ) ]
= 20 log [{(R2×Iconv ) + Pref }×( 1 + R4/R3 )]– [{(-R5×Iconv) + Pref }×( 1 + R7/R6 )]
(Vin – Bias )
= 20 log [2×(25K/10K)×{1+(20K/10K)} ]
= 23.5 [dB]
Sled closed loop Voltage Gain [R2 = 25KΩ, R3 = 10KΩ, R4 = 10KΩ ]
Gain = 20 log [2× (25K/10K)×{1+(10K/10K)} ]
= 20 [dB]
Spindle closed loop Voltage Gain [R2 = 15KΩ, R3 = 10KΩ, R4 = 10KΩ]
Gain = 20 log [2× (25K/10K)×{1+(10K/10K)} ]
= 15.5 [dB]
KSD-I7A002-003
SEPT., 2010 REV. 03
8
S3052
6] Tray driver logic input
Speed Control
Driver 1
R2
VOTR(+)
-
R1
+
VOTR(-)
VCTL
REV
FWD
R3
R5
R4
R6
Driver 2
Switching Logic
FWD [pin6]
REV [pin7]
VOTR+ [pin10]
VOTR- [pin9]
FUNCTION
L
L
OPEN
OPEN
Open mode
L
H
L
H
Reverse mode
H
L
H
L
Forward mode
H
H
L
L
Brake mode
Input circuit of pin6 [FWD] and pin7 [REV] is designed to avoid simultaneous activation of upper and
lower output power TR. however, in order to improve reliability, apply motor forward/reverse
input once through open mode. We recommend that the time period of open state is longer than 10msec.
“H” side output voltage on output voltage [VOL+, VOL-] varies depending on output control terminal
for tray. [pin21]“H” side output voltage is set three times (9.2dB typ.) VTCL [pin21], and “L” side
output voltage is equal to output saturation voltage.
KSD-I7A002-003
SEPT., 2010 REV. 03
9
S3052
Characteristic Diagrams
Fig. 1 VCC - IQC
Fig. 2 Temperature - IQC
Fig. 3 VOM - VCC
Fig.4 VOM - VCC
Ω
Fig. 5 VOM - VCC
Ω
Fig.6 OP VIN – OP VO
Ω
KSD-I7A002-003
SEPT., 2010 REV. 03
10
S3052
◈ Application Circuit
Tray
voltage
control
Spindle
MUTE
U-COM
FWD
REV
Tracking
Vcenter
Sled
Focus
SERVO
28
27
25
26
5V to VCC
4.7K
MOCTL
5V
0.1uF
24
Focus coil
1M
23
M
21
22
GND
20
19
17
18
16
15
PGND
Vcc2
10K
MUTE
15K
10K
+-
25K
+-
Spindle
Driver(4X)
-+
Thermal
Shut down
Actuator
Driver(6X)
8K
17.6K
Vcc3
Vcc2
25K
Vcc1
10K
+-
+-
25K
Spindle
Driver(4X)
+Pre-DRV
PGND
Actuator
Driver(6X)
TRAY
DRIVER
Vcc1
3
2
4
10K
10K
10K
1
5
6
7
8
9
10
13
14
M
Focus coil
0.1uF
10K
16.4K
KSD-I7A002-003
SEPT., 2010 REV. 03
12
47uF
5V
ADJ 3.3V
REGOUT
47uF
ADJ 2.5V
REGOUT
M
12V
11
11
S3052
V27
V26
MOCTL
V28
4.7K
5V
16.4K
DCMOT
◈ Testing Circuit
V23
12
8
V19
1M
OPEN
28
25
26
27
24
21
22
23
GND
20
19
17
18
16
15
PGND
Vcc2
10K
MUTE
15K
10K
+ -
25K
+ -
Spindle
Driver(4X)
- +
Thermal
Shut down
Actuator
Driver(6X)
8K
17.6K
Vcc3
Vcc2
25K
Vcc1
10K
+-
+ -
25K
Spindle
Driver(4X)
+ Pre-DRV
PGND
Actuator
Driver(6X)
TRAY
DRIVER
Vcc1
10K
5
6
7
8
V6
V7
V8
9
10
11
12
13
14
V4
45
20
12
10K
16.4K
47uF
10K
4
47uF
ADJ 3.3V
REGOUT
5V
ADJ 2.5V
REGOUT
V1
3
2
10K
1
KSD-I7A002-003
SEPT., 2010 REV. 03
12
S3052
◈ Outline Dimension
SSOPH-28N
With Heat-sink
KSD-I7A002-003
SEPT., 2010 REV. 03
13
S3052
The AUK Corp. products are intended for the use as components in general electronic
equipment (Office and communication equipment, measuring equipment, home
appliance, etc.).
Please make sure that you consult with us before you use these AUK Corp. products
in equipments which require high quality and / or reliability, and in equipments which
could have major impact to the welfare of human life(atomic energy control, airplane,
spaceship, transportation, combustion control, all types of safety device, etc.). AUK
Corp. cannot accept liability to any damage which may occur in case these AUK Corp.
products were used in the mentioned equipments without prior consultation with AUK
Corp..
Specifications mentioned in this publication are subject to change without notice.
KSD-I7A002-003
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