00W095A Spindle motor driver IC for CD-ROM/RW BD6665FM Description Dimension (Units : mm) The BD6665FM has achieved high-efficiency and low power consumption due to the adoption of MOSFET output and direct PWM drive. Power save circuit, current limit circuit, FG threephase synthesis output, hall bias, reverse protection circuit, short brake SW, and rotation direction detection terminal are incorporated. The result is a multi-function and high-performance IC. 18.5±0.2 0. 1 1 2.2±0. 1 1 5.15±0. 1 0.8 0.25±0. 1 9.9±0.3 15 7.5±0.2 28 14 0.35±0. 1 0.3Min. 0. 15 Features HSOP-M28 1) Direct PWM drive 2) Built-in power save circuit 3) Built-in current limit circuit 4) Built-in FG three-phase synthesis output 5) Built-in hall bias 6) Built-in reverse protection circuit 7) Low power consumption due to MOSFET output 8) Built-in short brake SW 9) Built-in rotation direction detection terminal Applications CD-ROM/RW Absolute Maximum Ratings (Ta=25˚C) Parameter Symbol Limits Unit 7 V Applied voltage (5V for power supply) Vcc Applied voltage (for motor supply) VM 15 Power dissipation Pd 2200 ∗1 Operating temperature range Topr –20 ~ +75 Storage temperature range Tstg –55 ~ +150 Output current IOMAX 3000 V *2 ∗2 mW ˚C ˚C mA ∗1 Mounted on a glass epoxy board (70mm×70mm×1.6mm) ∗1 Derating:17.6mW/˚C for operation above Ta=25˚C. ∗2 Do not exceed Pd, ASO and Tj=150˚C. November, 2000 Recommended Operating Conditions (Ta=25˚C) Parameter Symbol VCC VM Operating power supply voltage range Min. 4.5 Typ. — Max. 5.5 3 — 14 Unit V V Electrical characteristics (Unless otherwise noted ;Ta=25˚C, Vcc=5V, VM=12V) Parameter Symbol Min. Typ. Max. Unit Circuit current 1 Icc1 — — 0.2 mA Circuit current 2 Icc2 3.0 7.5 14 mA Power save ON voltage VPSON — — 1.0 V Power save OFF voltage VPSOFF 2.5 — — V IHA –8.0 –1.8 — µA VINH 60 — — mVpp Input bias current Minimum input level Offset voltage (+) Ecofs+ 10 40 70 mV Offset voltage (–) Ecofs– –70 –40 –10 mV Conditions Stand-by mode Stand-by mode Output ON resistance RON — 0.7 1.0 Ω Io=±600mA (Upper+Lower) Output limit voltage VTL 0.15 0.21 0.27 V RNF=0.33Ω Application Circuit 100pF 470pF CNF OSC 20 PWM COMP. + 22 + 21 – EC – 19 – 6 + 7 + VM 100 µ F RNF2 GND VCC + 1 H1+ H1 Hall 23 + 24 – Amp H1 U–PRE DRIVER H1- 25 H2H3 26 H3+ + H2 MATRIX DRIVER 14 – 27 + 28 – 15 D–PRE DRIVER H3 11 12 H3PS 17 18 H2+ H2 VCC CURRENT LIMIT AMP. Torque Amp. ECR 10 µF VM 10 OSC SERVO SIGNAL 5 A1 A1 A2 A2 A3 A3 TSD 4 PS RNF1 13 FG3 D CK 2 RNF1 0.33 Ω D-FF EXOR 9 REVERSE DETECT 3 VH FIN 10K Ω 16 Q Q SB 8 BD6665FM VCC FR 0.01 µF