BD6669FV Datasheet | ROHM

Motor driver ICs 3Phase spindle motor driver for CD-ROM BD6669FV is a 3-phase spindle motor driver adopting 180° PWM direct driving system. Noise occurred from the motor driver when the disc is driven can be reduced. Low power consumption and low heat operation are achieved by using DMOS FET and driving directly. z Applications CD-ROM z Features 1) Direct-PWM-Linear driving system. 2) Built in power save circuit. 3) Built in current limit circuit. 4) Built in FG-output. 5) Built in hall bias circuit. 6) Built in reverse protection circuit. 7) Built in short brake circuit. 8) Low consumption by MOS-FET. 9) Built in capacitor for oscillator. 10) Built in rotation detect. z Absolute maximum ratings (Ta=25°C) Parameter Power supply voltage Supply voltage for motor VG pin voltage Output current Power dissipation Junction temperature Operating temperature range Storage temperature range Symbol VCC VM VG IOMAX Pd Tj MAX Topr Tstg Limits 7 7 20 1000 ∗1 1020 ∗2 150 - 20 to +75 - 55 to +150 Unit V V V m A m W °C °C °C ∗1 However, do not exceed Pd, ASO and Tj=150°C. ∗2 70mm×70mm×1.6mm glass epoxy board. Reduce power by 8.16m W for each degree above 25°C. z Remended operating conditions Parameter Power supply voltage Supply voltage for motor VG pin voltage Symbol VCC VM VG Min. 4.5 3 7.5 Typ. - - - Max. 5.5 6.5 14 Unit V V V This product described in this specification isn't judged whether it applies to co regulations. Please confirm in case of export. This product is not designed for protection against radioactive rays. Rev.A 1/16 Motor driver ICs z Block diagram A31 1 U-Pre RNF1 A32 Driver A21 Driver A22 4 Matrix Torque AMP + - 25 A11 L-Pre Driver A12 6 + -...