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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 VCC = 8V, PVCC =5V, and RL = 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) PreDRV
Actuator Driver(6x)
5
3
4
9
10
8
7
6
11
12
13
14
ABSOLUTE MAXIMUM RATINGS (Otherwise specified, Tamb=25C)
Characteristics Power Supply Voltage Power Dissipation Operating Temperature Storage Temperature Symbol VCC, 1/2PVCC PD Topr Tstg 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 Tamb of 1C over 25C.
ELECTRICAL CHARACTERISTICS
(Unless other specified, Tamb=25C, VCC=8V, PVCC =5V, BIAS=2.5V, RL=8 /10 /20 /45 ) Characteristics Quiescent Current Actuator Driver Output Offset Voltage Maximum Output Amplitude Voltage Gain Voo VOM Gv 10 Load -50 3.6 --4.0 23.5 50 --mV V dB Symbol ICC Test conditions Min. -Typ. 30 Max. -Unit mA
VIN=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 VOOFSP VOMSP GVSP GVSP 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
VIN=BIAS 0.2V VIN=BIAS 0.2V
VOOFSL VOMSL GVSL 20 Load
-100 7.5 18
0 9.0 20
100 -22
mV V dB
VIN=BIAS 0.2V
VSTBY1 VSTBY2
All Channels Off All Channels On
0 2.0
---
0.5 --
V V
VSAT1 VSAT1 VSAT2 VVtrH
Upper + Lower saturation, IL=200mA Output saturation voltage 1 between FWD and REV Upper + Lower saturation, IL=500mA VCTR=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 VRL VVCC IL = 500mA IL = 0~500mA (VCC=4.5~8V) IL = 500mA 1.5 -50 -25 --0 0 4.0 50 25 V mV mV VIH VIL IIH VFWD=VREV=5V 1.5 -0.3 180 VCC 0.5 270 V V A
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 VINSL+
5 REGO1
6 FWD
7 REV
8 VCC
9 VOTR-
10 11 12 13 14 VOTR+ VOSL+ VOFC+ VOSLVOFC-
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 VOTRVOTR+ VOSL+ VOSLVOFCVOFC+ VOTK+ VOTKVOLD+ VOLDPVCC 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
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REV:1.2
VOTK+
TRB_2
VOLD-
VOTK-
MUTE
PVCC
VINTK
VINLD
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 VCC 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 135C (typ.). The hysteresis is set to 25 C (typ.), so the driver circuits start up again when the chip temperature falls to 120C (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
ELECTRICAL CHARACTERISTICS CURVES
12 RL=20 10 VCC=12V 12 PVCC=5V 8 BIAS=2.5V 8 6 4 2 0 -2 -4 -6 -8 -10 -12 -2 -1 0 1 INPUT VOLTAGE:VIN (V)
2
Fig 1. Thermal dissipation curve
Fig 2. Driver I/O characteristics (Spindle)
Fig 3. Driver I/O characteristics (sled)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2
2009.07.16 Page 6 of 8
TEST CIRCUIT
TYPICAL APPLICATION CIRCUIT
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
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2009.07.16 Page 7 of 8
Note: the value of R1 and R2 in testing circuit and typical application circuit is as the following table: Solution SA5888 R1 and R2 are: 24K and 15K 24K and 15K MTK 20K and 12K
PACKAGE OUTLINE
HSOP-28-375-0.8 Unit: mm
0.8
5.150.10 18.050.20
0.35
0.250.1
Disclaimer: * * Silan reserves the right to make changes to the information herein for the improvement of the design and performance without further notice! All semiconductor products malfunction or fail with some probability under special conditions. When using Silan products in system design or complete machine manufacturing, it is the responsibility of the buyer to comply with the safety standards strictly and take essential measures to avoid situations in which a malfunction or failure of such Silan products could cause loss of body injury or damage to property. * Silan will supply the best possible product for customers!
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2
2009.07.16 Page 8 of 8

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