TPIC2040DBT集成电路（IC）的电机驱动器控制器规格书PDF中文资料

TPIC2040DBT属于集成电路（IC）的电机驱动器控制器。由德州仪器制造生产的TPIC2040DBT电机驱动器，控制器产品属于电机驱动器和控制器电源管理集成电路 (PMIC) 系列，可用于控制或操作从某电源施加到电机或相关机电执行器的电源。所实现的具体功能和特性集根据预期负载和预期应用的特性有很大差异，范围从用于有刷电机的简单开环速度控制到基于步进电机的高级闭环运动控制。

1 Features

• 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 12-

Bit 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 Position Sense by Motor

BEMF

– 12-Bit Spindle DAC Programmed Through

Serial Port

– Self-Contained Inductive Position Sense and

Startup

– Quick Stop by Automatic Controlled Brake

Named Auto Short Brake (Short and Active

Brake)

– 0.7-A Maximum Continuous Current Excluding

Thermal Issues

– LS Mode: Restricted to 25% of Normal Speed

• Utility Functions

– XRESET Signal With Digital Delay (POR) 20

ms

– Status Latch: Act Timer, SIF Error, PWR

Monitor, Thermal Protection, and OCP Error

• Switch

– CSW: Software Control Current Output Port

• LDO Pre-Driver

– 1-Channel LDO Pre-Driver for 3.3-V or 1.2-V

Output With External Transistor

• Protection

– Individual Thermal Protect Circuit on CSW,

SPM, and Act Channel

– Two Alert Levels: Pre-Detect and Detect in

Thermal Protection

– Overcurrent Protection Circuit in Load Driver

– Selectable OCP Threshold Level in CSW

Output

– Hardware Device Disable Pin XMUTE

– Power Monitor by Undervoltage Lockout

(UVLO) and Overvoltage Protection (OVP)

2 Applications

• DVD Player

• CD Player

• Optical Disk Drive

3 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