5-CH BTL DRIVER FOR DVD PLAYER WITH DISC BIDIRECTIONAL DRIVER
AND TWO VARIABLE REGULATORS
DESCRIPTION
The SA5888 is a five-channel BTL driver IC for driving the motors
and actuators in products such as CD - ROM / DVD drivers. It is also
build-in two independent precision voltage regulators with adjustable
range from 1.5V to 4V and one channel bi-direction DC motor driver
for tray.
FEATURES
* Wide dynamic range (4.0V (Typ.) when V
CC
= 8V, PVCC =5V,
and R
L
= 8 ).
* Level shift circuit on chip.
* Thermal shutdown circuit on chip.
* Mute mode built-in.
* Two regulator controllers built-in.
* Five drivers build-in: dual actuator drivers, sled motor driver,
spindle driver and tray in-out driver.
* CD
* CD-ROM
* DVD
HSOP-28-375-0.8
APPLICATIONS
ORDERING INFORMATION
Part No.
SA5888
SA5888TR
SA5888G
SA5888GTR
Package
Marking
SA5888
SA5888
SA5888G
SA5888G
Material
Pb free
Pb free
Halogen free
Halogen free
Packing Type
Tube
Tape & Reel
Tube
Tape & Reel
HSOP-28-375-0.8
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2
2009.07.16
Page 1 of 8
BLOCK DIAGRAM
28
20
24
25
23
22
21
18
17
16
15
Mute
VINTK
10K
BIAS
25K
+ -
10K
TRB_1
25K
10K
25K
Tray
Driver
10K
15K
Spindle
Driver(4x)
Actuator
Driver(6x)
26
27
VCC
PVCC
VINFC
19
PVCC
1
VCC
2
Sled
driver(4x)
Pre-
DRV
Actuator
Driver(6x)
5
3
4
9
10
8
7
6
11
12
13
14
ABSOLUTE MAXIMUM RATINGS
(Otherwise specified, T
amb
=25°C)
Characteristics
Power Supply Voltage
Power Dissipation
Operating Temperature
Storage Temperature
Symbol
V
CC
,
1/2PV
CC
P
D
T
opr
T
stg
Value
8
1.7*
-35~+85
-55~+150
Unit
V
W
°C
°C
* When mounted on a 70mm X 70mm X 1.6mm glass epoxy board. Reduced by 13.6mW for each increase in
T
amb
of 1°C over 25°C.
ELECTRICAL CHARACTERISTICS
(Unless other specified, T
amb
=25°C, V
CC
=8V, PV
CC
=5V, BIAS=2.5V, R
L
=8 /10 /20 /45 )
Characteristics
Quiescent Current
Actuator Driver
Output Offset Voltage
Maximum Output Amplitude
Voltage Gain
V
oo
V
OM
G
v
10
Load
-50
3.6
--
--
4.0
23.5
50
--
--
mV
V
dB
Symbol
I
CC
Test conditions
Min.
--
Typ.
30
Max.
--
Unit
mA
V
IN
=BIAS ±0.2V
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2
2009.07.16
Page 2 of 8
Characteristics
Spindle Driver
Output Offset Voltage
Maximum Output Amplitude
Closed-Circuit Voltage Gain
Gain Error By Polarity
Sled Driver
Offset Voltage
Maximum Output Amplitude
Voltage Gain
STBY Logic
STBY On Voltage
STBY Off Voltage
Tray Motor Driver
Output Saturation Voltage 1
Output Saturation Voltage 1
Between F&R
Output Saturation Voltage 2
Output Adjustable Gain On
“ Side Voltage
H”
Symbol
V
OOFSP
V
OMSP
G
VSP
G
VSP
8
Test conditions
Min.
-50
Typ.
0
3.5
15.5
1
Max.
50
--
17.5
2
Unit
mV
V
dB
dB
Load
--
13.3
0
V
IN
=BIAS ±0.2V
V
IN
=BIAS ±0.2V
V
OOFSL
V
OMSL
G
VSL
20
Load
-100
7.5
18
0
9.0
20
100
--
22
mV
V
dB
V
IN
=BIAS ±0.2V
V
STBY1
V
STBY2
All Channels Off
All Channels On
0
2.0
--
--
0.5
--
V
V
V
SAT1
V
SAT1
V
SAT2
V
VtrH
Upper + Lower saturation,
I
L
=200mA
Output saturation voltage 1
between FWD and REV
Upper + Lower saturation,
I
L
=500mA
V
CTR
=2V
0.7
-
1.0
7.4
1.1
-
1.55
9.2
1.5
0.1
2.2
11
V
V
V
dB
Tray Motor Driver Input Logic
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
Regulator
Output Voltage
Output load differential
Power supply voltage
differential
Vreg
V
RL
V
VCC
I
L
= 500mA
I
L
= 0~500mA
(V
CC
=4.5~8V)
IL = 500mA
1.5
-50
-25
--
-0
0
4.0
50
25
V
mV
mV
V
IH
V
IL
I
IH
V
FWD
=V
REV
=5V
1.5
-0.3
-
-
-
180
V
CC
0.5
270
V
V
µA
This device is not designed for protection against radioactive rays;
It is based on 8550C PNP application;
It is based on 8550D PNP application.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2
2009.07.16
Page 3 of 8
PIN CONFIGURATIONS
VOLD+
28 27 26 25 24 23 22
21 20 19 18 17 16 15
SA5888
1
VINFC
2
TRB_1
3
REGO2
4
V
IN
SL
+
5
REGO1
6
FWD
7
REV
8
V
CC
9
VOTR-
10 11 12 13 14
VOTR+
VOSL+
VOFC+
VOSL-
VOFC-
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
Pin Name
VINFC
TRB_1
REGO2
VINSL+
REGO1
FWD
REV
VCC
VOTR-
VOTR+
VOSL+
VOSL-
VOFC-
VOFC+
VOTK+
VOTK-
VOLD+
VOLD-
PVCC
NC
VCTL
GND
VINLD
Focus driver input
Connect to external transistor base
Regulator voltage output, connect to external transistor collector
Sled driver input
Regulator voltage output, connect to external transistor collector
Tray driver forward input
Tray driver reverse input
VCC
Tray driver output(-)
Tray driver output(+)
Sled driver output (+)
Sled driver output (-)
Focus driver output (-)
Focus driver output (+)
Tracking driver output (+)
Tracking driver output (-)
Spindle driver output (+)
Spindle driver output (-)
Vcc for power block of spindle, tracking and focus
No connection
Speed control input of tray driver
Ground
Spindle driver input
Description
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2
VOTK+
TRB_2
VOLD-
VOTK-
MUTE
PVCC
V
IN
TK
V
IN
LD
VCTL
BIAS
GND
NC
NC
2009.07.16
Page 4 of 8
Pin No.
24
25
26
27
28
Pin Name
NC
TRB_2
VINTK
BIAS
MUTE
No connection
Description
Connect to external transistor base
Tracking driver input
Bias input
Mute control
Notes: The indicated polarities for the output pins are means polarity to inputs.
Always ensure that V
CC
PVCC
FUNCTION DESCRIPTION
Operation notes
1) This IC has a built in thermal shutdown circuit that mutes the output current when the chip temperature
reaches 135°C (typ.). The hysteresis is set to 25
°C
(typ.), so the driver circuits start up again when the chip
temperature falls to 120°C (typ.).
2) The driver buffer is switched off when the supply voltage falls below 3.6V (typ.), and is switched back on when
the voltage reaches 3.8V (typ.) again.
3) Bias pin (pin27) should be pulled up to more than 1.2V. In case the bias pin voltage is pulled down below 0.9V
(Typ), the output current is muted.
4) The stand by circuit logic is active low.
5) Mute is applied when the buffer pin voltage falls below 1.0V (typ.). Normally, operate with this pin at1.8V at
least.
6) Connect a bypass capacitor between the bases of the power supply pins of this IC.
7) Tray driver logic input:
FWD(pin6)
L
L
H
H
REV(pin7)
L
H
L
H
VOTR+(pin10)
OPEN
L
H
L
VOTR-(pin9)
OPEN
H
L
L
Function
Open mode
Reverse mode
Forward mode
Brake mode
The design of 6,7 pin, consider the driver upper and lower unable ducting at the same time, be sure to do it, the
motor forward and reverse input by the open mode, and the interval of the open mode is more than 10ms.
Output high level voltage VOL+, VOL- ,varied with the motor controller, it can output 3 times voltage of
21pin, and in high level. In this time, the low level voltage input power pipe as the output saturation voltage.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2
2009.07.16
Page 5 of 8
Embedded System
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