BH6552FV Optical Discs Voltage controller for CD-ROM BH6552FV BH6552FV is a voltage controller developed for CD-ROM. This IC incorporates 3.3V output DC/DC converter and reset circuit into a single chip. zExternal dimensions (Units : mm) zFeatures < 3.3V DC / DC converter > ∙ Intended for low drain current by adopting sync rectification type. ∙ Power MOS Tr is contained. ∙ 3.3V DC/DC converter reduces variation through laser trimming (3.3V ± 2%). ∙ Built-in mute function. < Reset circuit > ∙ Source voltage Reset reduces variation through laser trimming (3.7V ± 2%). 5.0±0.2 9 1 8 1.15±0.1 0.1 6.4±0.3 4.4±0.2 0.3Min. 16 0.65 0.15±0.1 0.1 0.22±0.1 SSOP-B16 zApplications CD, DVD zAbsolute maximum ratings (Ta=25°C） Parameter Power MOS supply voltage Control circuit power supply voltage Pre driver power supply voltage DSW output current Power dissipation Symbol Limits Unit PowVCC 9 V PreVCC 9 V VG(9pin) 12 Iomax 1 Pd 560 V ∗1 A ∗2 mW Operating temperature range Topr −30~+85 °C Storage temperature range Tstg −55~+150 °C ∗1 Switching current of maximum time 5msec and duty is below 1/10. ∗2 On less than 3%(percentage occupied by copper foil), 70mm×70mm, t=1.6mm, glass epoxy mounting.Reduce power by 4.5mW for each degree above 25°C. zRecommended operating conditions (Ta=25°C） Symbol Min. Typ. Max. Unit Power MOS supply voltage PowVCC 4.5 5.0 5.5 V Control circuit power supply voltage PreVCC 4.5 5.0 5.5 V VG(9pin) 8.0 10.0 11.5 V Ta −10 25 70 °C Parameter Pre driver power supply voltage Atmosphere temperature range ∗ ∗ In case of being supplied external voltage source. 1/3 BH6552FV Optical Discs zElectric characteristics (Unless specified particularly Ta=25°C, PREVcc=5V) Parameter Typ. Max. Unit Symbol Min. Current in stanby mode IST − 170 290 µA Quiescent current ICC − 1.45 2.60 mA VG quiescent current ICG − 80 160 µA EI terminal threshold voltage VEITH 1.19 1.25 1.31 V SOFT terminal output voltage VSOFT 1.70 2.40 3.10 V Conditions CE=0V < 3.3V DC/DC converter > SOFT terminal source current ISOFT 6.5 9.5 12.5 µA SOFT terminal impedance RSOFT 192 253 314 kΩ DSW terminal ON resistor H RDSWONH − 0.42 0.87 Ω IL=500mA DSW terminal ON resistor L RDSWONL − 0.30 0.60 Ω IL=−500mA DSW terminal oscillation frequency fDSW 210 310 410 kHZ DSW terminal minimum pulse width tDSWMIN 0.01 − 0.50 µ sec VDCO 3.24 3.30 3.36 V Output voltage VG 7.7 9.7 11.7 V VG drop mute VGM 5.0 6.0 7.0 V free-running oscillation frequency fOSC 210 310 410 kHZ VCC reset ON voltage VRSTON 3.63 3.70 3.77 V VCC reset hysteresis width VRSTHYS 30.0 60.0 90.0 mV VRSTO − 0.16 0.32 V VDD terminal threshold voltage < Charge pump > In action Reset monitor circuit VCC reset output voltage IL=1mA,PREVCC=3.5V ∗This product is not designed for protection against radioactive rays. 2/3 47µF 100k 1000pF 0.1µF 0.1µF 12 4 5 PREDRIVER SAW OSC − + 13 6 11 7 CE CHG PMP (PREVCC×2) 10 8 SOFT 9 0.1µF VCC:5V 10k 3 14 VCCRESET CE µ−COM 10µF 47µF 1000pF 2 15 0.1µF 1 − + 16 + + − VDD : 3.3V BH6552FV Optical Discs zApplication circuit 100k 0.1µF 0.1µF 3/3 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 use silicon as a basic material. 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 with 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. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.0