BD6670FM

BD6670FM Motor driver ICs 3Phase spindle motor driver for CD-RW BD6670FM BD6670FM is a 3-phase spindle motor driver adopting 180° PWM direct driving system. Noise occurred from the motor driver when the disc is driver can be reduced. Low power consumption and low heat operation are achieved by using DMOS FET in output and driving directly. !Applications CD-RW !Features 1) 180 degree Direct-PWM driving system. 2) Built in power save circuit. 3) Built in current limit circuit. 4) Built in FG-output. 5) Built in 3phase synthesized FG-output. 6) Built in hall bias circuit. 7) Built in reverse protection circuit. 8) Built in short brake circuit. 9) Low consumption by MOS-FET. 10) Built in capacitor for oscillator. 11) Built in gain switch and current limit switch. !Absolute maximum ratings (Ta=25°C) Parameter Power supply voltage Supply voltage for motor VG pin voltage Output current Power dissipation Junction temperature VCC VM VG Operating temperature range Storage temperature range ∗1 However, do not exceed Pd, ASO and Tj=150°C. The current is guaranteed 3.0A in case of the current is turn on / off in a duty-ratio of less than 1/10 with a maximum on-time of 5msec. ∗2 70mm×70mm×1.6mm glass epoxy board. Debating in done at 17.6mW / °C for operating above Ta=25°C. w w w t a .D Symbol IOMAX Pd TJMAX Topr Tstg S a Limits 7 15 20 150 e h U 4 t e Unit V V V mA mW °C °C °C .c m o 2500 ∗1 2200 ∗2 −20~+75 −55~+150 !Recommended operating conditions Parameter Power supply ...