[Four-layer board] TMC2208/TMC2209 stepper motor driver

This is a four-layer board TMC2208/TMC2209 stepper motor driver for 3D printers or writing machines.

Features of TMC2208/2209:

·2-phase stepper motor, up to 2.8A coil current (peak), 2A RMS

·STEP/DIR interface with 8, 16, 32 or 64 microstep pin settings

·Smoothly run 256 microstep interpolation with MicroPlyer

·Silent motor operation

·Extended cycle high dynamic motor control chopper

·4-speed stealth chopper load and stall detection

·Current control that saves 75% energy

·Voltage range 4.75…29V DC

·Low power backup power supply suitable for EUP or battery operation

·Internal sense resistor option (no sense resistor required)

·Passive braking, freewheeling and automatic power-off

· Single-wire UART and OTP for advanced configuration options

·Integrated pulse generator with independent movement

·Comprehensive protection and diagnostics

CSDN introduction link: https://blog.csdn.net/W1561460589/article/details/106378648

According to the schematic diagram drawn in the data sheet, in view of the price reduction of JLC four-layer boards, I drew a four-layer board (first attempt hhh).

The picture of the actual welded product is as follows. Pay attention to adding a heat sink and adjusting the adjustable resistor to adjust the output current. It is recommended to adjust it to 350mA for 3D printer applications.

Watch the video using the effect. By the way, the stepper motor driven by this driver has almost no sound, almost no sound! My surface fan is louder than his! It is strongly recommended to use TMC2209, whoever uses it knows