UPD16856

DATA SHEET MOS INTEGRATED CIRCUIT µPD16856 MONOLITHIC CD-ROM 3-PHASE SPINDLE MOTOR DRIVER The µPD16856 is a CD-ROM 3-phase spindle motor driver consisting of a CMOS controller and MOS bridge outputs. By employing 3-phase full-wave PWM as the drive method and MOS FETs at the output stage, it has been possible to reduce the power consumption of the µPD16856 ever further than the conventional linear drive drivers that use bipolar transistors. By using a 30-pin shrink SOP package, a more compact-size has been achieved. FEATURES Supply voltage for controller block: 5 V, supply voltage for output block: 12 V 3 V input available for the input interface Low on-state resistance (total on-state resistance of upper and lower MOS FETs) RON = 1.3 Ω (TYP.) Low power consumption due to 3-phase full-wave PWM drive method On-chip hole bias switch (linked with STB pin) On-chip IND (FG) pulse switching function, 1-phase output or 3-phase composite output START/STOP pin included, acting as a brake during STOP Standby pins included, turning off internal circuit in standby Low current consumption: IDD = 3 mA (Max.), IDD (ST) = 1 µA (Max.) On-chip thermal shutdown circuit On-chip current limiting circuit; reference voltage can be set externally On-chip low voltage malfunction prevention circuit On-chip reverse rotation prevention circuit 30-pin plastic shrink SOP (300 mil) ORDERING INFORMATION Part Number Package 30-pin shrink SOP (0.8-mm pitch, 300 mil) µPD16856GS ...