SA5624 [SILAN]
ACTUATOR DRIVER WITH CURRENT FEEDBACK FOR CD - ROM / DVD; ROM / DVD - 电流反馈对于CD传动装置驱动器
| 型号： | SA5624 |
| 厂家： | 
SILAN MICROELECTRONICS JOINT-STOCK |
| 描述： | ACTUATOR DRIVER WITH CURRENT FEEDBACK FOR CD - ROM / DVD |
| 文件： | 总7页 (文件大小：204K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SA5624
ACTUATOR DRIVER WITH CURRENT FEEDBACK FOR CD – ROM / DVD
DESCRIPTION
The SA5624 is a four•channel BTL driver IC. Two of them candrive DC
motors and two can drive coils, such as focus and tracking actuators of a
CD•ROM/DVD•ROM/DVD•PLAYER system, with current feedback.
FEATURES
* 2 channels of DC motor BTL driver
* 2 channels of BTL driver for coils with current feedback
* Build•in thermal shutdown circuit
HSOP • 28•375•0.8
* Operating voltage:4.3V~13.2V
APPLICATIONS
ORDERING INFORMATION
* CD•ROM, DVD
Part No.
Package
SA5624
HSOP•28•375•0.8
BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1
2005.06.21
Page 1 of 7
SA5624
ABSOLUTE MAXIMUM RATING (Tamb=25°C)
Characteristics
Power Supply Voltage
Power Dissipation
Symbol
VCC, PVCC1/2
PD
Value
13.5
Unit
V
1.7*
W
°C
Operating Temperature
Storage Temperature
Topr
•35~+85
•55~+150
°C
Tstg
*When mounted on a 70mm X 70mm X 1.6mm glass epoxy board.
Reduced by 13.6mW for each increase in Tamb of 1°C over 25°C
ELECTRICAL CHARACTERISTICS
(Unless other specified, Tamb=25°C, V =12V, PV
=PV =5V, BIAS=2.5V, RL=8W, Rd=0.5W, C= 100pF)
CC1 CC2
CC
Characteristics
Symbol
Test conditions
Min.
4.3
4.3
4.3
••
Typ.
••
Max.
Unit
V
V
CC
13.2
Power Supply Voltage
PV
PV
••
V
V
CC1
CC2
CC
CC
••
CC
Quiescent Current
Actuator Driver
Output Offset Current
Maximum Output Amplitude
Gain
I
18
27
mA
I
•6
••
6
••
mA
V
OOF
±
V =BIAS 1.5V
IN
V
OM
3.6
1.3
4.0
1.5
±
V =BIAS 0.2V
IN
GM
1.7
A/V
Loading Driver
Maximum Output Voltage
Output Voltage Offset
Closed Loop Gain
Sled Driver
V
No load
10.8
•100
18.0
11.1
0
••
V
OHOP
V
100
22.0
mV
dB
OOFLD
±
V =BIAS 0.2V
IN
G
20.0
VLD
Output Voltage Offset
V
•50
3.6
0
50
••
mV
V
OOFSL
V =BIAS ± 1.5V
IN
Maximum Output Voltage
V
4.0
OMSL
PV =5V
CC1
±
V =BIAS 0.2V
IN
Closed Loop Gain
Gain error
G
13.5
0
15.5
1
17.5
2
dB
dB
VSL
˂
±
G
V =BIAS 0.2V
VSL
IN
STBY Logic
STBY On Voltage
STBY Off Voltage
V
V
All Channels Off
All Channels On
0
••
••
0.5
••
V
V
STBY1
2.0
STBY2
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
REV:1.1
2005.06.21
Http: www.silan.com.cn
Page 2 of 7
SA5624
PIN CONFIGURATION
28 27 26 25 24 23 22
21 20 19 18 17 16 15
SA5624
1
2
3
4
5
6
7
8
9
10 11 12 13 14
PIN DESCRIPTIONS
Pin No.
1
Pin Name
VINFC
CFCerr1
CFCerr2
VINLD+
VINLD•
VOLD
Description
Input for focus driver
2
Connection with capacitor for focus driver
3
4
Input (+) for the Loading driver
Input (•) for the Loading driver
Output for the Loading driver
Feedback for focus driver
VCC
5
6
7
VNFFC
VCC
8
9
PVCC1
PGND
Power VCC for sled driver block
Power ground
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
VOLD•
VOLD+
VOFC•
VOFC+
VOTK+
VOTK•
VOSL+
VOSL•
PGND
Output (•) for loading driver
Output (+) for loading driver
Output (•) for focus driver
Output (+) for focus driver
Output (+) for tracking driver
Output (•) for tracking driver
Output (+) for sled driver
Output (•) for sled driver
Power ground
VNFTK
PVCC2
PreGND
VINSL
Feedback for tracking driver
Power VCC 2
Pre ground
Input for sled driver
CTKerr2
CTKerr1
VINTK
BIAS
Connection with capacitor for tracking driver
Input for tracking driver
Bias input
STBY
Standby
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1
2005.06.21
Page 3 of 7
SA5624
Notes: The indicated polarities for the output pins are under the condition that all inputs are (+).
The power supply are PVCC2 for the focus, tracking drivers are PVCC2, PVCC1 for the sled driver, and VCC
for the pre•block and loading driver. Therefore, make sure Vcc̱PVCC1, 2.
APPLICATION INFORMATION
(1) Thermal shutdown
If the chip temperature rises above 175ć, the thermal shutdown (TSD) circuit is activated and the output
circuit enters the mute state, that is off state. The TSD circuit has a temperature hysteresis of 25ć.
(2) The driver buffer is switched off when the supply voltage falls below 3.5V (Typ.), and is switched back on
when the voltage reaches 3.7V (Typ.) again.
(3) The stand by circuit logic
Stand•by input voltage
operation
The stand•by function is activated so the
bias block and power block are disabled
Recover the normal operation
Below 0.5V or open
Above 2.0V
(4) Current feedback driver
Trans conductance (output current/input voltage) is shown as below
Gm = 1/(Rd + Rwire) (A/V)
Rwire is the total wire resistance inside the package, Rwire»0.15W±0.05W(typ)
ELECTRICAL CHARACTERISTICS CURVES
Fig 1. Thermal dissipation curve
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1
2005.06.21
Page 4 of 7
SA5624
TEST CIRCUIT
TYPICAL APPLICATION CIRCUIT
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1
2005.06.21
Page 5 of 7
SA5624
PACKAGE OUTLINE
HSOP•28•375•0.8
UNIT: mm
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1
2005.06.21
Page 6 of 7
SA5624
ATTACHMENT
Revision History
Data
REV
Description
Page
2004.10.28
1.0
Original
Modify the ” FUNCTION DESCRIPTION”
4
5
2005.06.21
1.1
Modify the “ELECTRICAL CHARACTERISTICS CURVE”
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.1
2005.06.21
Page 7 of 7
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