SILENT_2209

Product Introduction

The TMC2209 is an ultra-silent motor driver IC for two phase stepper motors. TMC2209 pinning is compatible to a number of legacy drivers as well as to the TMC2208. TRINAMICs sophisticated StealthChop2 chopper ensures noiseless operation,maximum efficiency and best motor torque. Its fast current regulation and optional combination with SpreadCycle allow highly dynamic motion while adding. StallGuard for sensorless homing. The integrated power MOSFETs handle motor currents up to 2A RMS with protection and diagnostic features for robust and reliable operation. A simple to use UART interface opens up tuning and control options. Store application tuning to OTP memory.Industries’ most advanced STEP/DIR stepper motor driver family upgrades designs to noiseless and most precise operation for cost-effective and highly competitive solutions.Step/Dir Drivers for Two-Phase Bipolar Stepper Motors up to 2.8A peak –StealthChop™ for Quiet Movement – UART Interface Option –Sensorless Stall Detection StallGuard4.

Features

2-phase stepper motors up to 2.8A coil current (peak), 2A RMS
STEP/DIR Interface with 8, 16, 32 or 64 microstep pin setting
Smooth Running 256 microsteps by MicroPlyer™ interpolation
StealthChop2™ silent motor operation
SpreadCycle™ highly dynamic motor control chopper
StallGuard4™ load and stall detection for StealthChop
CoolStep™ current control for energy savings up to 75%
Low RDSon, Low Heat-Up LS 170mΩ & HS 170mΩ (typ. at 25°C) t
Voltage Range 4.75… 29V DC
Low Power Standby to fit standby energy regulations
Internal Sense Resistor option (no sense resistors required)
Passive Braking, Freewheeling, and automatic power down
Single Wire UART & OTP for advanced configuration options
Integrated Pulse Generator for standalone motion
Full Protection & Diagnostics

Technical Specifications

Model	TMC2209
Interface	Step/Dir
Configuration	CFG Pins or UART
Native Microsteps	up to 1/256
microPlyer Microsteps	1/256
Logic Voltage (VIO)	3-5V
Motor Voltage (VM)	5.5-28V
Motor Phase Current max	2A RMS, 2.8A Peak
Internal V- Regulator	enabled
RDSon	0.1 Ohm (HV 0.2 Ohm)
stealthChop (quiet)	yes
spreadCycle	yes
coolStep	yes
stallGuard	yes
dcStep	yes

Pin Functions

V3.0

2209引脚图V3.0

V3.1

TMC2209_V31_引脚图 ![image-20230508160723032]

V4.0

TMC2209_V40_引脚图

Pin	Function
Power Supply
GND	Ground
VM	Motor Supply Voltage
VIO	Logic Supply Voltage
Motor Outputs
M1A	Motor Coil 1
M1B	Motor Coil 1
M2A	Motor Coil 2
M2B	Motor Coil 2
Control Inputs
STEP	Step-Signal Input
DIR	Direction-Signal Input
TMC2209
EN	Enable Motor Outputs: GND=on, VIO=off
MS1	Microstep resolution configuration (internal pull-down resistors)
MS2	MS1: 00: 1/8, 01: 1/2, 10: 1/4 11: 1/16 For UART based configuration selection of UART Address 0…3
SP	Chopper mode selection: Low/pin open=StealthChop, High=SpreadCycle
CLK	CLK input. Tie to GND using short wire for internal clock or supply external clock.
TYPE
The V4.0 version replaces the original CLK pin with a module type identification pin, which is mainly used for spider king.

TX |UART TX, Connected to the PDN via a 1K resistor on board
RX |UART RX, Directly connected to the PDN
DIAG |Diagnostic and StallGuard output. Hi level upon stall detection or driver error. Reset error condition by ENN=high.
INDEX |Configurable index output. Provides index pulse.
VREF| Analog Reference Voltage

Interface Resources

Wiring Diagram

2209接线图

Motor Current Setting

Below V2.1:

2209测vref

V3.0&3.1

2209测vref

The best way to set the motor current is by measuring the voltage on the Vref pin (0…2.5V) and adjusting the voltage with the potentiometer. The maximum settable motor current is 1.77A RMS (0.11Ohm sense resistors), but the SilentStepSticks can only be used up to 1.2A RMS.
Irms = (Vref * 1.77A) / 2.5V = Vref * 0.71
Vref = (Irms * 2.5V) / 1.77A = Irms * 1.41 = Imax
Vref -> Voltage on Vref pin
Irms -> RMS (Root Mean Square) current per phase (Irms = Imax / 1.41)
Imax -> Maximum current per phase (Imax = Irms * 1.41)

!!! note
1. Vref measures Gnd and the voltage at the middle of the potentiometer.
2. Do not connect the motor when measuring the voltage, otherwise it is easy to burn the driver.
3. Power should be connected when measuring voltage, do not just connect USB power supply.
4.
Please pay special attention to directions!

!!!

Calculator

RMS Current (A):
Reference Voltage (V):

Micro-stepping

MS2(-)	MS1(-)	Steps(-)	Interpolation(-)	Mode(-)
GND	VIO	1⁄2	1⁄256	stealthChop2
VIO	GND	1⁄4	1⁄256	stealthChop2
GND	GND	1⁄8	1⁄256	stealthChop2
VIO	VIO	1⁄16	1⁄256	stealthChop2

Setting Method

V2.1 Hardware Connection

2209串口接线

You can use every RS232 serial adapter with 0-5V logic levels (e.g. FTDI-Breakout) and the SilentStepStick Tester/Programmer can be used as connection adapter.

!!! tip
The FYSETC TMC2209V2.1 version has been set with jumpers, and the TX and RX pins are lengthened for easy wiring. You only need to follow the silk screen to wire and use.

!!!