03W005A Actuator/Motor Driver for CD-ROM BH6526FV Description Dimension (Units : mm) BH6526FV is a 2channel PWM driver developed for driving actuator and motor of CD-ROM. This IC has achieved lower power consumption of the set by using power MOS FET in output. Furthermore, using a small SSOP-B16 package and reducing external parts can achieve the size reduction. 1 8 4.4±0.2 9 0.65 0.22±0. 1 0.15±0. 1 1. 15±0.1 0. 1 6.4±0.3 5.0±0.2 16 0.3Min. 0. 1 Features SSOP-B16 1) Lower power consumption of sets by adopting PWM system 2) Narrow dead band allows good play ability 3) Few external parts required 4) Small SSOP-B16 package 5) Power supply voltage : 5V Pre-driver block : Vcc+1.7V~11.5V Applications CD-ROM, DVD-ROM, DVD Absolute Maximum Ratings (Ta=25˚C) Parameter Symbol Limits Unit Vcc 9 V VG(15pin) 12 V Driver output current Io 800 Power dissipation Pd Power supply voltage Pre-driver supply voltage Operating temperature range Topr Tstg Storage temperature range ∗Derating : 4.5mW/˚C for operation above Ta=25˚C 562.5 mA ∗ ~ +85 —55 ~ +150 —30 mW ˚C ˚C On less than 3% (percentage occupied by copper foil), 70mmx70mm, t=1.6mm, glass epoxy mounting. January, 2003 Recommended Operating Conditions (Ta=25˚C) Parameter Power supply voltage Pre-driver supply voltage Symbol Min. VCC 3.5 Typ. VG (9pin) Vcc+1.7 Max. Unit 5.0 5.5 10.0 11.5 V V Electrical characteristics (Unless otherwise noted; Ta=25˚C, Vcc=5.0V, VG=10.0V, Vref=2.5V, RL=8Ω+47µH) Parameter Symbol Min. Typ. Max. Unit Current at no signal (Vcc) Icc1 — 1.9 3.7 mA Output offset voltage V00 –50 0 50 mV Voltage gain GVC 12.0 14.0 16.0 dB Output ON resistance RON 1.0 1.7 2.4 Ω Conditions PWM driver Sum (Top+Bottom) Application Circuit Charge Pump TRACKING Vcc 5V 0.01µF 0.1µF 10V 16 15 14 13 20KΩ 1KΩ 12 11 10 DRI E 20KΩ NFAmp 9 VG PWM SAW OSC PWM DRIVE NFAmp 1KΩ 20KΩ BH6526FV 20KΩ 1 2 220pF 3 4 5 0.01µF FOCUS TE VREF FE Servo IC 6 7 8