TPIC2010

• Serial Peripheral Interface
  • Maximum Read/Write 35 MHz
  • 3.3-V Digital I/O
• Actuator and Motor Driver
  • PWM Control With H-Bridge Output
  • Focus / Tracking / Tilt Actuator Driver With
    DAC Control
  • Sled Motor Drivers With Current Mode, 10-Bit
    DAC Control
  • Load Driver With 12-Bit DAC Control
  • Stepping Motor Driver With 8-Bit PWM Control
  • End Position Detector for Collimator Lens,
    Sled Without Position Sensor
• Spindle Motor Driver
  • Sensor-Less BEMF Position Feedback
  • 12-Bit Spindle DAC
  • Self-Contained Inductive Position Sense and
    Startup
  • Quick Stop by Automatic Controlled Brake:
    
    Active Brake and Short Brake
  • 0.7-A Maximum Continuous Current Excluding
    
    Thermal Issues
  • LS Mode: 25% Speed
• On-Chip Thermometer (15°C to 172.5°C)
• Switch
  • Two Switch Circuits Controllable by Software
  • LED: Switch for LED Driver With 0.1-A OCP
  • CSW: Low R_DS(ON) Current Switch With 0.1-A
    OCP
• DC-DC Converter
  • V1Px: Pin-Selectable Conversion Voltage 1.0 V /
    1.2 V / 1.5 V; 0.9-A Output Capability With
    1.85-A Overcurrent Protection
  • V3P3: Fixed 3.3-V DC-DC Converter; 0.5-A
    Output Capability With 1.15-A Overcurrent
    Protection
  • 2.5-MHz Switching Frequency
  • Improved Efficiency at Low Current With
    Discontinuous Regulation Mode
• Protection
  • Individual Thermal Protect Circuit on
    LED/CSW, Switch, DCDC Converter, SPM,
    and Actuator
  • Two Alert Levels: Pre-Detect and Detect in
    
    Thermal Protection
  • ACTTEMP: Monitor the Actuator Temperature
    Calculated from Integrated the DAC Value Set
    Up in the Past
  • Undervoltage Lockout (UVLO) and
    Overvoltage Protection (OVP)

TPIC2010 is a very-low noise type motor driver IC suitable for slim or ultra-slim ODD. The 9-channel driver IC controlled by serial I/F is optimal for driving a spindle motor, a sled motor (stepping motor applicable), a load motor, and focus / tracking / tilt actuators and stepping motor for collimator lens. This driver IC includes 2-channel synchronous DC-DC converters.

The discontinuous regulation mode on the DC-DC converter improves efficiency at low power consumption significantly. The spindle motor driver uses BEMF feedback for startup, control, and low-noise operation without needing external sensors. In addition, the TPIC2010 has many protection features including: spindle output current limiting, thermal shutdown, sled and collimator lens end detection, actuator protection, and power-reset circuit. The TPIC2010 also has a built-in thermometer for easy IC temperature measurement.