TPIC2030 Serial I/F Controlled 7-Channel Motor-Driver With 1-Channel Step Down Regulator

1 Features

• 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 12-Bit DAC Control
  • Sled Motor Drivers With Current Mode, 10-Bit DAC Control
  • Load Driver With 12-Bit DAC Control
  • End Position Sensing for Sled Without Position Sensor
• Spindle Motor Driver
  • Integrated Spindle Current Sense Resistor
  • Sensor-Less: Rotor Position Sense by Motor BEMF
  • 12-Bit Spindle DAC
  • Quick Stop by Automatic Controlled Brake (Auto Short Brake)
  • LS Mode: Restricted to 25% of Normal Speed
• On-Chip Thermometer (15°C to 165°C/1.2°C)
• Software Controlled Switch for LED Driver With 0.1-A OCP
• Switch
  • CSW: Low R_DS(ON) Current Switch With Selectable OCP Limit (Supposing Use <0.2 A)
  • LED: Software Control Current Output Port With 0.1-A OCP
• DC-DC Converter
  • Pin Selectable Conversion Voltage 1.0 V/ 1.2 V/ 1.5 V/ 3.3 V (or Disable)
  • Improved Efficiency at Low Current With Discontinuous Regulation Mode
• Protection
  • Individual Thermal Protect Circuit on LED/CSW, Switch, DCDC Converter, SPM, and Actuator
  • Overcurrent Protection
  • Undervoltage Lockout (UVLO) and Overvoltage Protection (OVP)

2 Applications

• DVD Player
• CD Player
• Optical Disk Drive

3 Description

TPIC2030 is very-low noise type motor driver IC suitable for slim or ultra-slim DVD reader/writer. The integrated current sense resistance for the spindle motor reduces cost and board area in designs. The TPIC2030 is an integrated solution for driving the spindle motor, sled motor, load motor, and Focus / Tracking / Tilt actuators in an optical disk drive. It also integrates a synchronous DC-DC converter to supply 1.0 or 3.3 V. The discontinuous mode regulation feature on the DC-DC converter improves efficiency at low power consumption.

1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Block Diagram

4 Revision History

5 Description (continued)

Sensorless control using BEMF allows for self-starting and low-noise operation of the spindle motor without requiring external sensors. In addition, the TPIC2030 has many built-in protection features including: spindle driver output current limiting, thermal shutdown, sled-end detection, and power-reset circuit. It also integrates a thermometer to measure IC temperature.

6 Pin Configuration and Functions

DBT Package

44-Pin TSSOP

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