1/3 Structure Silicon Monolithic Integrated Circuit Product series 6ch Power Driver for CD,DVDRW,DVD-RAM Type BD7781AEFS 3-phase-sensor-less system, therefore don't need three hall sensors. Characteristic Output current detection resister is not necessary with internally equipped detection circuit. Absolute maximum ratings Parameter Symbol POWER MOS Power supply voltage SPVM,SLVM Limits Preblock/BTL powerblock Power supply voltage Vcc, AVM,LDVM 15 V PWM control block Power supply voltage DVcc 7 V 15 2.0 Unit V #1 Power dissipation Pd 2 W Operating temperature range Topr -2070 Storage temperature Tstg -55150 Junction temperature Tjmax 150 #1 POWER MOS output terminals (810, 1316pin) is contained. #2 PCB (70mmx70mmx1.6mm,occupied copper foil is less than 3%,glass epoxy standard board) mounting. Reduce power by 16mW for each degree above 25. Recommended operating conditions (Ta=-20+70) (Set the power supply voltage taking allowable dissipation into considering) Parameter Symbol MIN TYP MAX Unit Spindle driver powerblock power supply voltage SPVM Vcc#3 V Sled motor driver powerblock power supply voltage SLVM Vcc#3 V Preblock power supply voltage Vcc 10.8 12 13.2 V LDVM 4.3 5.0 Vcc #3 V Actuator driver powerblock power supply voltage AVM 4.3 5.0 5.5 V PWM control block power supply voltage DVcc 4.3 5.0 5.5 V Spindle driver output current Iosp 1.0 2.5#4 A Actuator/sled motor/loading motor driver output current Ioo 0.5 0.8 A Loading driver power block power supply voltage #3 Set the same supply voltage to SPVM,SLVM and Vcc #4 The current is guaranteed 3.5A in case of the Short-circuit braking mode and the current which is turned on/off in a duty-ratio of less than 1/10 with a maximum on-time of 5msec. This product isn't designed for protection against radioactive rays. Status of this document The Japanese version of this document is the formal specification. A customer may use this translation version only for a reference to help reading the formal version. If there are any differences in translation version of this document , formal version takes priority. REV. A 2/3 Electrical characteristics (Unless otherwise noted, Ta=25, Vcc=SPVM=SLVM=12V, DVcc=AVM=LDVM=5V, VC=1.65V, RL=8, RLSP=2) Parameter Circuit current Symbol MIN. TYP. Quiescent current 1 IQ1 Quiescent current 2 IQ2 Quiescent current 3 IQ3 6.5 Standby-on current1 IST1 0 Standby-on current 2 Input dead zone (one side) Sled motor driver block Input output gain Spindle driver block Tracking driver block 14 25 mA VccWhen Loading OFF 7 12 mA VccWhen Loading ON 11 mA DVcc 100 A Vcc DVcc IST2 0 100 A VDZSL 0 20 80 mV Condition gmSL 0.75 1.0 1.25 A/V RSLLIM=3k RONSL 2.2 3.0 IL=500mA Output limit current ILIMSL 0.85 1.0 1.15 A RSLLIM=3k fsl 100 kHz Input dead zone (one side)1 VDZSP1 20 55 90 mV Input dead zone (one side)2 VDZSP2 20 220 450 mV VLRPM=H Input output gain H gmSPH 2.3 3.0 3.7 A/V RSPLIM=1.3k, VLRPM=L Input output gain L gmSPL 0.46 0.6 0.74 A/V RSPLIM=1.3k, VLRPM=H Output ON resistor RONSP 1.1 1.7 IL=500mA Output limit current ILIMSP 1.3 1.55 1.8 A RSPLIM=1.3k fsp 167 kHz Output offset voltage VOFF -20 0 20 mV Output saturation Voltage VOHF 0.7 1.6 V IL=500mA Voltage gain H GVFH 19.6 21.6 23.6 dB VLRPM=L Voltage gain L GVFL 13.6 15.6 17.6 dB VLRPM=H Output offset voltage VOFT -30 0 30 mV Output saturation Voltage VOHT 0.7 1.6 V PWM frequency Focus Unit Output ON resistor PWM frequency driver block MAX. IL=500mA GVT 19.6 21.6 23.6 dB Output offset voltage VOFLD -50 0 50 mV Loading Output saturation Voltage 1 VOLD1 0.6 1.6 V IL=500mALDVM=5V driver block Output saturation Voltage 2 VOLD2 1.9 3.5 V IL=500mALDVM=12V Voltage gain GVLD 15.5 17.5 19.5 dB VC drop-muting VMVC 0.4 0.7 1.0 V Vcc drop-muting VMVcc 3.45 3.85 4.25 V Others Voltage gain VLRPM=L Package outlines PRODUCT NUMBER ( MAX 18.85 ( include BURR ) ) BD7781EFS A 1PIN MARK Lot No. HTSSOP-A44 REV. A (UNIT : mm) 3/3 Block diagram / Application circuit FG FG 100k SPGND 5V V Logic W BEMF DETECTER CURR. LIMIT U SPVM 12V C_COM C_OUT OSC SPIN SPIN CURR. FEED Io/533 SLGND SLO2- 12V 1.3k CURR. FEED Io/1600 COM M SPLIM RSPLIM LEVEL SHIFT Vin/1600 SLO2+ PRE Logic SLO1- PRE Logic FF SLLIM LEVEL SHIFT Vin/533 SLIN2 LEVEL SHIFT Vin/533 SLIN1 SLIN2 CURR. LIMIT FF SLO1+ CURR. FEED Io/533 SLVM RSLLIM 3k SLIN1 STBY BRAKE CONTROL CTL2 CTL2 CTL1 CTL1 12V 5/12V Vcc VC VC LDVM 80k 80k LRPM LRPM LDO- 40k 74k T.S.D. 74k LDO+ 80k 160k 26.5k 160k 26.5k AGND TKO- 160k TKO+ 5V 80k 160k DVcc PRTRST PRT RST PRTFLG PRT FLG PROTECT 26.5k 26.5k 100k 5V LDIN (open) TEST2 LDIN (open) TEST1 TKIN 160k 26.5k 160k 26.5k TKIN NC FCO- 160k FCO+ 5V 160k 26.5k FCIN 26.5k AVM REV. A FCIN Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of which would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the NOTES specified in this catalog. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact your nearest sales office. ROHM Customer Support System www.rohm.com Copyright (c) 2007 ROHM CO.,LTD. THE AMERICAS / EUPOPE / ASIA / JAPAN Contact us : webmaster@ rohm.co. jp 21, Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan TEL : +81-75-311-2121 FAX : +81-75-315-0172 Appendix1-Rev2.0