BD6670FM - 3-phase spindle motor driver for CD-RW

Pin No.

H 2+ H 2 H 3+ H 3 GSW GND CP1 CP2 VG CNF SB VCC VM ECR EC PS RNF2 A3 RNF1 A2 RNF1 A1 VM VH FG FG3 Function Hall input AMP 1 positive input Hall input AMP 1 negative input

• 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 vo.