TPIC2040 - Texas Instruments

TPIC2040 Serial I/F Controlled 7-Channel Motor-Driver

TPIC2040 is a very-low noise type motor driver IC suitable for slim or ultra-slim DVD reader/writer. This IC includes integrated current sense resistance that measures SPM current and reduces drive system cost. The 7-channel driver IC controlled by serial I/F is optimum for driving a spindle motor, a sled motor, a load motor, and Focus / Tracking / Tilt actu.

Features

•1 Serial Peripheral Interface (SPI)
  – 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 12Bit DAC Control
  – Sled Motor Drivers With Current Mode, 10-Bit DAC Control
  – Load Driver With 12-Bit DAC Control
  – Capable End Position Sensing for Sled Without Position Sensor
• Spindle Motor Driver
  – Integrated Spindle Current Sense Resistor
  – Selectable Current Sense Resistor Value 0.27 to 0.20 Ω by Register Setting; Thereby, SPM Current can be Restricted from 725 to 980 mA
  – Sensor-Less: Rotor Po.