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TMC5272 2.1V to 20V/2 x 0.

8ARMS

双轴步进电机驱动

控制芯片

TMC5271 2.1V to 20V/1 x 1.

RMS

单轴步进电机驱动&控制芯片

功能描述

TMC5272是一款小型智能化高性能双轴步进电机驱动

控制芯片带有串行通讯接口 (SPI, UART)和广泛的诊断

功能。它集成了8点斜坡发生器自动定位并减少运行

中的抖动，带有业界最先进的步进电机驱动器基于256

微步细分构建的索引器和四个完全集成的20V，1.1A MAX

H-桥加上非耗散型集成电流传感(ICS).

非耗散型 ICS消除了外部体积较大的检测电阻和电容器

节省了空间和能耗.

StealthChop2确保绝对无噪音操作，并结合最高效率和

最佳电机扭矩控制。

最高的集成度、高能效和小尺寸等因素，成为小型化和

智能化系统最具成本效益的解决方案。

集成的功率FET具有非常低的阻抗，从而具有很高的驱动效

率和最小的热量产生。

典型的总RDS(ON)(高侧+低侧)为0.31Ω。

集成过流保护((OCP)适应所选电动机电流范围

假设4层PCB，室温下每个H桥的最大RMS电流为

IRMS=0.8A

受过流保护(OCP)限制，

每个H桥的最大输出电流为IMAX=1.5AMAX。

由于该电流受到热因素的限制，因此实际最大均方根

电流取决于应用、布局和环境条件。

TMC5272具有丰富的诊断和保护功能，如短保护/ OCP，

热关闭，或欠压锁定。在热关闭和欠压锁定事件期间，

驱动器被禁用，直到正常操作条件恢复。

此外，可以使用集成的ADC功能读出芯片内部晶圆温度

TMC5272采用微型2.97mm x 3.13mmWLCSP封装，

技术交流

应用

● 智能穿戴

● 个人便携设备

● 光学系统 , 焦距控制

● CCTV, surveillance, conference systems focus/ zoom

● 贴片泵 & 胰岛素泵

● 移液器和液体处理

● 小型打印和扫描设备

● 实验室和办公室自动化

● 空间受限的步进电机应用

优点和特点

● 电压范围 2 . 1 V 至 20 V DC

● 4x 20 V H- bridges

●

Low RDS( ON)

( HS + LS) : 3 1 0 mΩ typical ( TA = 2 5 ° C)

● 电流范围每个 H桥 ( typical at 2 5 ° C) :

• H桥峰值电流 IMAX = 1.

5AMAX

• 满量程电流 IFS = 0.

8ARMS

(1.12A 正弦波峰值

● 完全集成无损电流传感 ( ICS)

● 八点运动控制器实现最小的震动

● 支持空间坐标直线插补

● 带有 MicroPlyer微步细分插补功能的step/dir控制接口

● SPI 或单线 UART通讯接口

● 2x正交编码器接口

● 2x 参考开关输入

● TriCoder无传感器静止失步检测和整步编码器

● 最高256微步分辨率

● StealthChop2 静音电机控制

● SpreadCycle高动态斩波模式

● StallGuard2和StallGuard4无传感器电机负载检测

● CoolStep自适应电流控制，节能高达75%

● 被动制动和自由转动模式

● H 桥禁用、复位和低功耗模式

● 电机线圈和芯片温度测量

● 全面保护和诊断

● 2.97mm x 3. 13mm WLCSP with 36 pins

Click here to ask an associate for production status of specific part numbers.

TMC5272 2.1V to 20 V, 2 x 0.

8ARMS

Two-Axis Stepper

Driver and Controller

General Description

The TMC5272 is a miniaturized, smart, high-performance

dual-axis stepper motor controller and driver IC with serial

communication interfaces (SPI and UART) and extensive

diagnostic capabilities. Highest integration, high energy ef-

ficiency, and a small form factor enable miniaturized and

scalable systems for cost-effective solutions.

StealthChop2™ ensures absolutely noiseless operation

combined with maximum efficiency and the optimal motor

torque control.

The TMC5272 combines two flexible 8-point ramp gener-

ators with reduced jerk for automatic positioning with two

smart stepper motor drivers based on a 256- microstep

built-in indexer and four fully integrated 20V, 1.

1AMAX

H-bridges plus non-dissipative integrated current sensing

(ICS), which eliminates bulky external sense resistors re-

sulting in space and power savings.

The integrated power MOSFETs' low impedance results in

high driving efficiency and minimal heat generation. The

typical total

RDS(ON)

(high side plus low side) is 0.31Ω

with a maximum RMS current per H-bridge of

IRMS

8ARMS

and a maximum output current per H-Bridge at

IMAX

= 1.

5AMAX

(limited by overcurrent protection).

The TMC5272 features abundant diagnostics and protec-

tion functions such as short-circuit protection/overcurrent

protection, thermal shutdown, and undervoltage lockout.

The TMC5272 is available in a tiny 2.97mm x 3.13mm,

36-pin WLCSP package.

Applications

● Wearables

● Personal Portable Devices

● Optical Systems, Lens Control

● CCTV, Surveillance, Conference Systems Focus/

Zoom and Pan/Tilt Control

● Patch and Insulin Pumps

● Pipettes and Liquid Handling

● Small Printing and Scanning Devices

● Lab and Office Automation

● Space-Constrained Stepper Motor Applications

Benefits and Features

● 2. 1V to 20V DC Voltage Range

● Four 20V H-Bridges

●

Low RDS(ON)

(HS Plus LS): 0.31Ω Typical (T

+25°C)

● Current Ratings per H-Bridge (Typical at +25°C):

• Bridge Peak Current

IMAX

= 1.

5AMAX

• Full-Scale Current IFS = 0.

8ARMS

(1.12A Sine-

Wave Peak)

● Fully Integrated Lossless Current Sensing (ICS)

● Eight- Point Motion Controller for Minimum Jerk

● Automatic 2 D- Line Trajectory with Axis Interpolation

● Step/ Direction Interface with MicroPlyer™ Step

Interpolation

● SPI or Single-Wire UART Interface

● Two Quadrature Encoder Interfaces

● Two Reference Switch Inputs

● TriCoder Sensorless Standstill Steploss Detection and

Full- Step Encoder

● Highest Resolution with 256 Microsteps per Full Step

● StealthChop2 Silent Motor Operation

● SpreadCycle™ Highly Dynamic Chopper Mode

● StallGuard2™ and StallGuard4™ Sensorless Motor

Load Detection

● CoolStep® Current Control for Energy Savings up to

75%

● Passive Braking and Freewheeling Mode

● Bridge Disable, Reset, and Low- Power Mode

● Motor Phase and Chip Temperature Measurement

● Full Protection and Diagnostics

● 2.97mm x 3. 13mm, 36-Pin WLCSP

扫码获取更多支持

TMC5272 2. 1V to 20V, 2 x 0.

8ARMS

Two-Axis Stepper Driver

and Controller

www.analog.com Analog Devices | 3

TABLE OF CONTENTS

General Description ....................................................................................................................................................................... 1

Applications

.....................................................................................................................................................................................

Benefits and Features ................................................................................................................................................................... 1

Simplified Block Diagram

............................................................................................................................................................

Absolute Maximum Ratings ........................................................................................................................................................10

Package Information

...................................................................................................................................................................

36 WLCSP .............................................................................................................................................................................. 10

Electrical Characteristics

..........................................................................................................................................................

Pin Configuration

..........................................................................................................................................................................

36 WLCSP

..............................................................................................................................................................................

Pin Description

............................................................................................................................................................................

Functional Diagrams ................................................................................................................................................................... 19

TMC5272

................................................................................................................................................................................

Detailed Description ................................................................................................................................................................... 20

Principles of Operation .......................................................................................................................................................... 20

Dual-Axis Motion Controller and Driver ......................................................................................................................... 20

Key Concepts ................................................................................................................................................................... 21

Control Interfaces ............................................................................................................................................................ 22

Moving and Controlling the Motor ..................................................................................................................................22

Integrated 8-Point Motion Controller

.......................................................................................................................

Step and Direction Mode ...........................................................................................................................................23

Automatic Standstill Power-Down and Power-Up

........................................................................................................

StealthChop2 and SpreadCycle Driver

.........................................................................................................................

StallGuard2 and StallGuard4—Mechanical Load Sensing

........................................................................................

CoolStep—Load Adaptive Current Control

...................................................................................................................

Encoder Interface

............................................................................................................................................................

Standstill Steploss Detection

...........................................................................................................................................

SPI Interface

............................................................................................................................................................................

SPI Datagram Structure ................................................................................................................................................. 24

Selection of Write/Read (WRITE_notREAD) ..........................................................................................................25

SPI Status Bits Transferred with Each Datagram Read Back

.............................................................................

Data Alignment ............................................................................................................................................................ 26

SPI Signals

.......................................................................................................................................................................

SPI Timing

..........................................................................................................................................................................

UART Single-Wire Interface

.................................................................................................................................................

UART Datagram Structure .............................................................................................................................................27

UART Write Access

....................................................................................................................................................

UART Read Access

....................................................................................................................................................

UART Signals ...............................................................................................................................................................29

TMC5272 2. 1V to 20V, 2 x 0.

8ARMS

Two-Axis Stepper Driver

and Controller

www.analog.com Analog Devices | 4

TABLE OF CONTENTS ( CONTINUED)

CRC Calculation ...............................................................................................................................................................29

C-Code Example for CRC Calculation ......................................................................................................................... 29

Addressing Multiple Nodes

.............................................................................................................................................

UART Daisy Chaining ............................................................................................................................................... 30

UART Ring Mode ........................................................................................................................................................ 31

Step/Direction Interface

........................................................................................................................................................

Timing ................................................................................................................................................................................ 32

Changing Resolution

........................................................................................................................................................

MicroPlyer Step Interpolator and Standstill Detection ................................................................................................. 34

StealthChop2 ..........................................................................................................................................................................35

Automatic Tuning

............................................................................................................................................................

StealthChop2 Options ......................................................................................................................................................37

StealthChop2 Current Regulator

....................................................................................................................................

Lower Current Limit

....................................................................................................................................................

Velocity-Based Scaling

....................................................................................................................................................

Understanding the Back EMF (BEMF) Constant of a Motor ............................................................................... 43

Combining StealthChop2 and SpreadCycle ................................................................................................................ 43

Flags in StealthChop2 ......................................................................................................................................................45

Open Load Flags ........................................................................................................................................................45

Information on Motor State from PWM_SCALE_SUM

..........................................................................................

Freewheeling and Passive Braking ................................................................................................................................45

Parameters Controlling StealthChop2 ........................................................................................................................... 46

SpreadCycle and Classic Chopper

....................................................................................................................................

SpreadCycle Chopper ......................................................................................................................................................49

Classic Constant Off-Time Chopper

..............................................................................................................................

Integrated Current Sensing (ICS)

.........................................................................................................................................

Setting the Motor Current

...............................................................................................................................................

Setting the Full-Scale Current

.........................................................................................................................................

Velocity-Based Mode Control ............................................................................................................................................... 56

Ramp Generator

.....................................................................................................................................................................

Real Word Unit Conversion

.............................................................................................................................................

Motion Profiles

...................................................................................................................................................................

Ramp Mode

.................................................................................................................................................................

Eight-Point Ramp

........................................................................................................................................................

Velocity Mode ...............................................................................................................................................................65

Early Ramp Termination

.............................................................................................................................................

Application Example: Joystick Control

.....................................................................................................................

Velocity Thresholds

..........................................................................................................................................................

Reference Switches

........................................................................................................................................................