 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| SA5624 ACTUATOR DRIVER WITH CURRENT FEEDBACK FOR CD - ROM / DVD DESCRIPTION The SA5624 is a four-channel BTL driver IC. Two of them can drive 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 * Operating voltage:4.3V~13.2V HSOP - 28-375-0.8 APPLICATIONS ORDERING INFORMATION * CD-ROM, DVD Part No. SA5624 Package 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=25C) Characteristics Power Supply Voltage Power Dissipation Operating Temperature Storage Temperature Symbol VCC, PVCC1/2 PD Topr Tstg Value 13.5 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=12V, PVCC1=PVCC2=5V, BIAS=2.5V, RL=8, Rd=0.5, C= 100pF) Characteristics Symbol VCC Power Supply Voltage PVCC1 PVCC2 Quiescent Current Actuator Driver Output Offset Current Maximum Output Amplitude Gain Loading Driver Maximum Output Voltage Output Voltage Offset Closed Loop Gain Sled Driver Output Voltage Offset Maximum Output Voltage Closed Loop Gain Gain error STBY Logic STBY On Voltage STBY Off Voltage VSTBY1 VSTBY2 All Channels Off All Channels On 0 2.0 --0.5 -V V VOOFSL VOMSL GVSL GVSL VIN=BIAS 1.5V PVCC1=5V VIN=BIAS 0.2V VIN=BIAS 0.2V -50 3.6 13.5 0 0 4.0 15.5 1 50 -17.5 2 mV V dB dB VOHOP VOOFLD GVLD VIN=BIAS 0.2V No load 10.8 -100 18.0 11.1 0 20.0 -100 22.0 V mV dB IOOF VOM GM VIN=BIAS 1.5V VIN=BIAS 0.2V -6 3.6 1.3 -4.0 1.5 6 -1.7 mA V A/V ICC Test conditions Min. 4.3 4.3 4.3 -Typ. ---18 Max. 13.2 VCC VCC 27 mA V Unit HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2005.06.21 Page 2 of 7 SA5624 PIN CONFIGURATION PreGND CTKerr1 CTKerr2 VOTK+ VOFC+ VNFTK VOSL+ VOLD+ VOTKVOFCVOSLVOLDPGND PGND PVCC2 STBY VINTK 28 27 26 25 24 23 22 VINSL BIAS 21 20 19 18 17 16 15 SA5624 1 VINFC 2 CFCerr1 3 CFCerr2 4 VINLD+ 5 VINLD- 6 VOLD 7 VNFFC 8 VCC 9 PVCC1 10 11 12 13 14 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 VINFC CFCerr1 CFCerr2 VINLD+ VINLDVOLD VNFFC VCC PVCC1 PGND VOLDVOLD+ VOFCVOFC+ VOTK+ VOTKVOSL+ VOSLPGND VNFTK PVCC2 PreGND VINSL CTKerr2 CTKerr1 VINTK BIAS STBY Input for focus driver Connection with capacitor for focus driver Input (+) for the Loading driver Input (-) for the Loading driver Output for the Loading driver Feedback for focus driver VCC Power VCC for sled driver block Power ground 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 Feedback for tracking driver Power VCC 2 Pre ground Input for sled driver Connection with capacitor for tracking driver Input for tracking driver Bias input Standby Description 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 Vcc PVCC1, 2. APPLICATION INFORMATION (1) Thermal shutdown If the chip temperature rises above 175 , 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 25 . (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 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, Rwire0.150.05(typ) operation The stand-by function is activated so the bias block and power block are disabled Recover the normal operation 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 2004.10.28 2005.06.21 REV 1.0 1.1 Original Modify the "FUNCTION DESCRIPTION" Modify the " ELECTRICAL CHARACTERISTICS CURVE" 4 5 Description Page HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn REV:1.1 2005.06.21 Page 7 of 7 |
Price & Availability of SA5624
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |