Product name: TMC2209 Maximum output current: 2A Recommended operating current: maximum 1.7A Micro step: 256 micro step subdivision Configuration: STEP/DIR OR UART Load driving electric range: 5.5~38V IC logic operating voltage: 3/5V Product name: TMC2208 Maximum output current: 1.4A Recommended operating current: maximum 1.2A Micro step: 256 micro step subdivision Configuration: STEP/DIR OR UART Load driving electric range: 5~ 36V IC logic operating voltage: 3.3V/5V Product name: ATD5833 Maximum output current :2.5A Recommended operating current: Max. 2A Micro step: 256 micro step subdivision Configuration: STEP/DIR OR UART Load driving electric range: 5~36V IC logic operating voltage: 3.3V/5V