The LB1939T is a constant voltage driver for single stepping motor. It is optimal for motor drive in portable system products. (Battery drive available )
Low voltage drive Dual power supply operation Vs=1.6V to 7.5V VDD=1.9V to 6.5V Single power supply operation Vs=VDD=1.9V to 7.5V Low saturation voltage Vosat=0.3V at Io=200mA Supports constant voltage and constant current drive Built-in reference voltage circuit Small and thin package TSSOP20 Current consumption 0 uA by standby mode