BH6552FV

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. 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%). zExternal dimensions (Units : mm) 5.0±0.2 16 9 6.4±0.3 4.4±0.2 1 8 1.15±0.1 0.1 0.15±0.1 0.1 0.65 0.22±0.1 SSOP-B16 zApplications CD, DVD zAbsolute maximum ratings (Ta=25°C） Parameter Symbol PowVCC PreVCC VG(9pin) Iomax Pd Topr Tstg Limits 9 9 12 1 560 ∗1 ∗2 Unit V V V A mW °C °C Power MOS supply voltage Control circuit power supply voltage Pre driver power supply voltage DSW output current Power dissipation Operating temperature range Storage temperature range −30~+85 −55~+150 ∗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） Parameter Power MOS supply voltage Control circuit power supply voltage Pre driver power supply voltage Atmosphere temperature range ∗ Symbol PowVCC PreVCC VG(9pin) Ta Min. 4.5 4.5 8.0 −10 Typ. 5.0 5...