BD7998EFS-E2

1/3 Structure Silicon Monolithic Integrated Circuit Product series 6ch Power Driver for CD-ROM,DVD-ROM Type BD7998EFS Function ・The spindle driver and the SLED driver can highly effective drive with PWM drive system. ・The actuator driver and the loading driver are liner BTL drive system and are achieving a low noise power. 特 長 ○Absolute maximum ratings Parameter Symbol Limits SPVM1,2 POWER MOS power supply voltage 15 Unit #1 V SLRNF1,2 Preblock/BTL powerblock power supply voltage PWM control block power supply voltage Vcc=SLVDD,AVM 15 V DVcc 7 V Power dissipation Pd Operating temperature range Storage temperature Joint part temperature 2.0 ＃2 W Topr -40～85 ℃ Tstg -55～150 ℃ Tjmax 150 ℃ #1 POWER MOS output terminals (17～20, 30, 33, 35pin) is contained. #2 PCB (70mm×70mm×1.6mm,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=-40～+85℃) 〔Set the power supply voltage taking allowable dissipation into considering〕 Parameter Symbol MIN TYP Spindle driver powerblock Power supply voltage SPVM － Vcc #3 Sled motor driver powerblock Power supply voltage SLVM － Vcc #3 Preblock / Loading driver powerblock Power supply voltage MAX Unit － V － V SLVDD=Vcc AVM 12 14 V Actuator driver powerblock Power supply voltage AVM 4.3 5.0 Vcc V PWM control block power supply voltage DVcc 4.3 5.0 6.0 V Spindle driver output current Iosp － 1.2 Actuator/sled motor/loading motor driver output current Ioo － 0.5 2.5 #4 0.8 A A #3 Set the same supply voltage to SPVM,SLVM and Vcc. #4 The current is guaranteed 3.0A in case of the current 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. REV. A 2/3 ○Electrical characteristics (Unless otherwise noted, Ta=25℃, Vcc=SPVM=SLVM=12V, DVcc=AVM=5V, SPRNF=0.33Ω, SLRNF=0.5Ω, VC=1.65V, RL=8Ω, RLSP=2Ω) Circuit current Parameter Symbol MIN. TYP. MAX. Unit Quiescent current1 IQ1 － 12 20 mA Vcc（Loading OFF） Quiescent current2 IQ2 － 7 12 mA Vcc（Loading ON） Quiescent current3 IQ3 － 2.2 4.4 mA DVcc Standby-on current1 IST1 － 0.18 0.4 mA Vcc DVcc Standby-on current2 Input dead zone (one side) Sled driver block Input output gain block block Loading driver block Others 0.18 0.4 mA 40 65 mV gmSL 0.8 1.0 1.2 A/V SLRNF=0.5Ω RONSL － 2.65 3.8 Ω IL=500mA Output limit current ILIMSL 0.91 1.05 1.19 A SLRNF=0.5Ω fosc － 100 － kHz Input dead zone (one side) VDZSP 20 50 90 mV Input output gain gmSP 2.4 3.0 3.6 A/V SPRNF=0.33Ω Output On resistor（top and bottom） RONSP － 0.9 1.7 Ω IL=500mA Output limit current ILIMSP 1.30 1.51 1.73 A SPRNF=0.33Ω fosc － 100 － kHz VOFFT -50 0 50 mV PWM frequency Actuator driver － 15 Output On resistor（top and bottom） PWM frequency Spindle driver IST2 VDZSL Condition Output offset voltage Output saturation voltage VOFT － 0.95 1.75 V Voltage gain GVFT 16.0 17.5 19.0 dB VOFLD -50 0 50 mV Output offset voltage Output saturation voltage VOLD － 2.45 3.5 V Voltage gain GVLD 16.0 17.5 19.0 dB VC drop-muting VMVC 0.4 0.7 1.0 V Vcc drop-muting VMVcc 3.4 3.8 4.2 V IL=500mA IL=500mA ○ Package outlines B D 7 9 9 8 E F S Lot No. (UNIT : mm) Drawing No. : EX195-5002 REV. A 3/3 ○Block diagram / Application circuit AVM TKO+ TKIN LEVEL SHIFT 5V TKO- FCO+ FCIN LEVEL SHIFT FCO- AGND LDO+ LDIN LEVEL SHIFT LDO- M Vcc 12V 12V SLIN1 PRE Logic FF M LIMIT OSC SLIN2 PRE Logic FF LIMIT DGND DVcc HU+ HUREVERSE DETECT HV+ HV- 5V HW+ HW- 100kΩ FG 5V FG HB HB SPVM1, SPVM2 U SPIN V 3-phase MATRIX W SPGND1, SPGND2 FF Current LIMIT OSC SPRNF VC CTL1 CTL2 STBY/ BRAKE CONTROL T.S.D. REV. A 12V 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. 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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 © 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