BH6559FV

BH6559FV Optical discs DC/DC converter for CD/DVD-ROM slim BH6559FV BH6559FV is an IC that incorporates 1 channel variable DC/DC converter and reset function. Variable DC/DC converter can set high-precision voltage (±2% precision) by trimming reference voltage. !Applications CD/DCD-ROM slim !External dimensions (Units : mm) 5.0 ± 0.2 !Features 1) Low current consumption by adopting synchronous rectifier type. 2) Few external components reduced by the built-in power MOS transistor. 3) Adjustable by external resistor of DC/DC converter output. 4) Built-in reset for supply voltage and ATAPI (output pin is common). 5) Built-in delay time setting function for supply voltage reset. 16 9 1.15 ± 0.1 6.4 ± 0.3 0.1 4.4 ± 0.2 1 8 0.15 ± 0.1 0.65 0.1 0.22 ± 0.1 SSOP-B16 !Absolute maximum ratings (Ta=25°C) Parameter Supply voltage 1 (PRE block) Supply voltage 2 (PRE block) Supply voltage (PRE block) Pin output current (DSW block) Power dissipation Operating temperature range Storage temperature range Symbol PREVCC1 PREVCC2 POWVCC Iswomax Pd Topr Tstg Limits 7 7 7 1 ∗1 Unit V V V A W C C 0.56 ∗2 −30 to +85 −55 to +150 ∗1 Intermittent current at maximum applied time of 5msec,1/10 duty (Max.) ∗2 Derating : 4.5mv/ C for operation above Ta=25 C. On less than 3% (percentage occupied by copper foil), 70mm 70mm, t=1.6mm, glass epoxy mounting. 0.3Min. + 1/3 BH6559FV Optical discs !Recommended Operating Conditions (Ta=25°C) Parameter Supply voltage 1 (PRE block) Supply voltage ...