1 Features

1? 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 RDS(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.