TPIC2040 Series

Serial interface controlled 7-ch motor driver for optical disk drive

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Key Features

• Serial Peripheral Interface (SPI)Maximum Read/Write 35 MHz3.3-V Digital I/OActuator and Motor DriverPWM Control With H-Bridge OutputFocus / Tracking / Tilt Actuator Driver With 12-Bit DAC ControlSled Motor Drivers With Current Mode, 10-Bit DAC ControlLoad Driver With 12-Bit DAC ControlCapable End Position Sensing for Sled Without Position SensorSpindle Motor DriverIntegrated Spindle Current Sense ResistorSelectable Current Sense Resistor Value 0.27 to 0.20 Ω by Register Setting; Thereby, SPM Current can be Restricted from 725 to 980 mASensor-Less: Rotor Position Sense by Motor BEMF12-Bit Spindle DAC Programmed Through Serial PortSelf-Contained Inductive Position Sense and StartupQuick Stop by Automatic Controlled Brake Named Auto Short Brake (Short and Active Brake)0.7-A Maximum Continuous Current Excluding Thermal IssuesLS Mode: Restricted to 25% of Normal SpeedUtility FunctionsXRESET Signal With Digital Delay (POR) 20 msStatus Latch: Act Timer, SIF Error, PWR Monitor, Thermal Protection, and OCP ErrorSwitchCSW: Software Control Current Output PortLDO Pre-Driver1-Channel LDO Pre-Driver for 3.3-V or 1.2-V Output With External TransistorProtectionIndividual Thermal Protect Circuit on CSW, SPM, and Act ChannelTwo Alert Levels: and in Thermal ProtectionOvercurrent Protection Circuit in Load DriverSelectable OCP Threshold Level in CSW OutputHardware Device Disable Pin XMUTEPower Monitor by Undervoltage Lockout (UVLO) and Overvoltage Protection (OVP)Serial Peripheral Interface (SPI)Maximum Read/Write 35 MHz3.3-V Digital I/OActuator and Motor DriverPWM Control With H-Bridge OutputFocus / Tracking / Tilt Actuator Driver With 12-Bit DAC ControlSled Motor Drivers With Current Mode, 10-Bit DAC ControlLoad Driver With 12-Bit DAC ControlCapable End Position Sensing for Sled Without Position SensorSpindle Motor DriverIntegrated Spindle Current Sense ResistorSelectable Current Sense Resistor Value 0.27 to 0.20 Ω by Register Setting; Thereby, SPM Current can be Restricted from 725 to 980 mASensor-Less: Rotor Position Sense by Motor BEMF12-Bit Spindle DAC Programmed Through Serial PortSelf-Contained Inductive Position Sense and StartupQuick Stop by Automatic Controlled Brake Named Auto Short Brake (Short and Active Brake)0.7-A Maximum Continuous Current Excluding Thermal IssuesLS Mode: Restricted to 25% of Normal SpeedUtility FunctionsXRESET Signal With Digital Delay (POR) 20 msStatus Latch: Act Timer, SIF Error, PWR Monitor, Thermal Protection, and OCP ErrorSwitchCSW: Software Control Current Output PortLDO Pre-Driver1-Channel LDO Pre-Driver for 3.3-V or 1.2-V Output With External TransistorProtectionIndividual Thermal Protect Circuit on CSW, SPM, and Act ChannelTwo Alert Levels: and in Thermal ProtectionOvercurrent Protection Circuit in Load DriverSelectable OCP Threshold Level in CSW OutputHardware Device Disable Pin XMUTEPower Monitor by Undervoltage Lockout (UVLO) and Overvoltage Protection (OVP)

Description

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 actuators. The spindle motor driver uses BEMF detection for sensorless startup and control of the spindle motor As the output stage of all channels works in efficient PWM driving, it is possible to attain low-power operation by PWM control. Deadband less control is possible for a focus / tracking / tilt actuator driver. In addition, the spindle part output current limiting circuit, thermal shutdown circuit, sled-end detection circuit, actuator protection and power-reset circuit are built in. 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 actuators. The spindle motor driver uses BEMF detection for sensorless startup and control of the spindle motor As the output stage of all channels works in efficient PWM driving, it is possible to attain low-power operation by PWM control. Deadband less control is possible for a focus / tracking / tilt actuator driver. In addition, the spindle part output current limiting circuit, thermal shutdown circuit, sled-end detection circuit, actuator protection and power-reset circuit are built in.