TB6560 or TB6600 single axis stepper driver

TB6560
Working voltage DC 10V-35V. Recommended to use a switching power supply DC24V power supply.
6N137 high-speed optical coupling, guarantee high speed without losing step.
Using the TB6560AHQ chip with low voltage shutdown, overheating stop and overcurrent
protection circuit to ensure optimal performance.
Rated maximum output: ± 3A, peak 3.5A.
For two-phase within 42,57 stepping 3A / four-phase / of line four / six-wire stepper motor.
and is not suitable for more than 3A stepper motor.
Automatic half current function.
Microstepping: full, half, step 1/8, 1/16 step, a maximum of 16 microstepping.
Specifications:
Working voltage:DC 10-35V
Rated maximum output: ± 3A, peak 3.5A.
Main color:Green
Size:75 x 50 x 33mm
Net weight:83g
Package weight:93g

TB6600 upgraded with heatsink
Working voltage:DC 10-40V
Microstepping: Full, half, 1/4, 1/8, 1/16, and 32th
Rated maximum output: ± 3.5A, peak 4A.