PDF BD6669FV Data sheet ( Hoja de datos )

Número de pieza	BD6669FV
Descripción	3Phase spindle motor driver for CD-ROM
Fabricantes	ROHM Semiconductor
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No Preview Available ! Motor driver ICs BD6669FV 3Phase spindle motor driver for CD-ROM BD6669FV 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. zApplications CD-ROM zFeatures 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. zAbsolute maximum ratings (Ta=25°C) Parameter Symbol Power supply voltage Supply voltage for motor VCC VM VG pin voltage Output current Power dissipation VG IOMAX Pd Junction temperature Operating temperature range TjMAX Topr Storage temperature range Tstg ∗1 However, do not exceed Pd, ASO and Tj=150°C. ∗2 70mm×70mm×1.6mm glass epoxy board. Reduce power by 8.16mW for each degree above 25°C. Limits 7 7 20 1000 ∗1 1020 ∗2 150 −20 to +75 −55 to +150 Unit V V V mA mW °C °C °C zRecommended operating conditions Parameter Symbol Min. Typ. Max. Power supply voltage VCC 4.5 − 5.5 Supply voltage for motor VG pin voltage VM VG 3 − 6.5 7.5 − 14 This product described in this specification isn't judged whether it applies to cocom regulations. Please confirm in case of export. This product is not designed for protection against radioactive rays. Unit V V V Rev.A 1/16 1 page Motor driver ICs BD6669FV zElectrical characteristics (unless otherwise noted, Ta=25°C, VCC=5V, VM=5V) Parameter <Total> Circuit current 1 Circuit current 2 <Power save> ON voltage range OFF voltage range <Hall bias> Hall bias voltage <Hall AMP> Input bias current In-phase input voltage range Minimum input level Hall hysteresis level (+) Hall hysteresis level (−) <Torque control> Input voltage range Offset voltage (+) Offset voltage (−) Input current <Short brake SW> ON voltage range OFF voltage range <Output> Input / Output gain Output ON-resistance Torque limit voltage <FG output> High voltage Low voltage <Charge pump voltage> Charge pump output voltage Symbol ICC1 ICC2 VPSON VPSOFF VHB IHA VHAR VINH VHYS+ VHYS− EC, ECR Ecofs+ Ecofs− ECIN VSBON VSBOFF GEC RON VTL VFGH VFGL Vpump Min. − 5 − 2.5 0.6 −8.0 1.4 100 5 −40 0 5 −100 −12 2.5 − 0.8 0.3 0.16 4.6 − 6 Typ. − 11 − − 1.0 −2.0 − − 20 −20 − 50 −50 −2.5 − − 1.0 0.5 0.2 − − 10 Max. Unit Conditions 5 µA Sutand by mode 17 mA 1.0 V Sutand by mode −V 1.4 V IHB=10mA − µA 3.6 V − mVPP Hall input Amp 40 mV −5 mV 5 V Linear range 0.5V∼3.3V 100 mV −5 mV − µA EC=ECR=1.65V − V Short brake 1.0 V 1.2 A/V 0.7 Ω IO=±600mA (Upper+Lower) 0.24 V − V IFG=−100µA 0.4 V IFG=+100µA 14 V VCC=VM=5V Test Circuit Fig.2 Fig.2 Fig.2 Fig.2 Fig.2 Fig.4 Fig.4 Fig.4 Fig.8 Fig.8 Fig.6 Fig.6 Fig.6 Fig.6 Fig.7 Fig.7 Fig.6 Fig.5 Fig.3 Fig.6 Fig.6 Fig.9 zMeasuring circuit 1. Value of resistor (Fig.2∼Fig.9) A1 A2 A3 5, 6pin 3, 4pin 1, 2pin 13, 16pin RNF RL RL=5Ω, RNF=0.33Ω GND Rev.A 5/16 5 Page Motor driver ICs BD6669FV zCircuit operation 1. Application (1) Hall input Hall element can be used with both series and parallel connection. Determining R1 and R2, make sure to leave an adequate margin for temperature and dispertion in order to satisfy in-phase input voltage range and minimum input level. A motor doesn’t reach the regular number of rotation, if hall input level decrease under high temperature. VCC R1 H1 H2 H3 R2 VCC R1 H1 H2 H3 R2 VH Parallel connection VH Series connection Fig.10 2.Torque voltage By the voltage difference between EC and ECR, the current driving motor changes as shown in Fig.11 below. IM [A] ITL Forward torque Reverse torque 0 ECR EC [V] Fig.11 The gain of the current driving motor for the voltage of EC can be changed by the resistance of RNF. Rev.A 11/16 11 Page

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