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| 00W096A Spindle motor driver IC for CD-ROM/RW BD6667FM Description The BD6667FM has achieved in high-efficiency and low power consumption due to the adoption of MOSFET output and direct PWM drive. Power save circuit, current limit circuit, FG 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. Features 1) Direct PWM drive 2) Built-in power save circuit 3) Built-in current limit circuit 4) Built-in FG 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 HSOP-M28 Dimension (Units : mm) 18.50.2 28 15 9.90.3 7.50.2 1 5.150. 1 14 2.20. 1 0. 1 1 0.8 0.350. 1 0.3Min. 0. 15 0.250. 1 Absolute Maximum Ratings (Ta=25C) Parameter Applied voltage (For 5V power supply) Applied voltage (For motor power supply) Power dissipation Operating temperature range Storage temperature range Output current 1 Mounted on a glass epoxy board (70mmx70mmx1.6mm) 1 Derating:17.6mW/C for operation above Ta=25C. 2 Do not exceed Pd, ASO and Tj=150C. Symbol Vcc VM Pd Topr Tstg IOMAX -20 -55 Limits 7 15 2200 ~ ~ 3000 1 Unit V V +75 +150 *2 2 mW C C mA w w w .d ee sh ta a u. t4 om c November, 2000 www..com Recommended Operating Conditions (Ta=25C) Parameter Operating supply voltage Symbol VCC VM Min. 4.5 3 Typ. -- -- Max. 5.5 14 Unit V V Electrical characteristics (Unless otherwise noted ; Ta=25C, Vcc=5V, VM=12V) Parameter Circuit current 1 Circuit current 2 Power save ON voltage Power save OFF voltage Input bias current Minimum input level Offset voltage (+) Offset voltage (-) Output ON resistance Output limit voltage Symbol Icc1 Icc2 VPSON VPSOFF IHA VINH Ecofs+ Ecofs- RON VTL Min. -- 3.0 -- 2.5 -8.0 60 10 -70 -- 0.15 Typ. -- 7.5 -- -- -1.8 -- 40 -40 0.7 0.21 Max. 0.2 14 1.0 -- -- -- 70 -10 1.0 0.27 Unit mA mA V V A mVpp mV mV V Io=600mA (upper+ower) RNF=0.33 Stand-by mode Conditions Stand-by mode Application Circuit 470 p F OSC(20) OSC CNF(5) 10 100 p F VM + 100 F + SERVO SIGNAL EC ECR 22 21 PWM COMP. + Torque Amp . CURRENT LIMIT AMP. 19 VM RNF2 GND 6 + 7 10 F + VCC 1 H1+ H1 Hall + -- Amp H1 U-PRE DRIVER H2 18 17 23 24 A1 A1 A2 A2 H1H2 H2+ 25 26 H2- + -- MATRIX DRIVER 15 14 H3 H3+ 27 28 H3 VCC PS + -- H3 D-PRE DRIVER A3 12 11 A3 TSD 4 PS 16 RNF1 10K FG 2 D CK D-FF Q Q 13 RNF1(13) 0.33 9 FR(9) VH 3 BD6667FM FIN REVERSE DETECT SB(8) VCC 0.01 F |
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