1、Original stepper motor driver chip, the current is selected by DIP switch 2、Large area radiator, not afraid of using in high temperature environment 3、Seven subdivisions adjustable, automatic half-current to reduce heat generation, high-speed optocoupler isolation for the interface 4、Possess input voltage reverse connection protection, applicable stepper motor for 42,57,86 type 2 5、Powerful anti-high frequency interference ability, and overheating, overcurrent, short circuit protection Item Type: Stepper Motor Driver Material: ABS Model: TB6600 Input Voltage: DC9-40V Temperature/Working Temperature: -10~45℃ Storage temperature: -40℃~70℃ Product Description and Parameters: 4A TB6600 stepper motor driver controller 9~40V TTL 16 microstep CNC 1 axis 2 or 4 phase stepper motor for 42, 57, 86 Function: This drive is an upgraded version TB6600 is the highest segment of the 32 market segments and is suitable for highly segmented applications. Applicable Stepping Motor: 42,57,86 type 2 Phase: 4 Phase(4 wire 6 wire line 8) 1. 9V-40V DC power supply; 2. H-bridge bipolar constant current drive; 3. Eight output currents are optional, Maximum Output Current: 4.0A; 4, 6 subdivision modes are available, up to 32 subdivisions; 5. High-speed optical isolation of input signals; 6. Common anode single pulse interface standard; 7. Offline hold function; 8. The semi-enclosed chassis can adapt to a harder environment; 9. Provide energy-saving semi-automatic current locking function; 10. Built-in temperature protection and overcurrent protection. 1 x Stepper Motor Driver