LB1945D

Ordering number : EN7633A www.DataSheet4U.com Monolithic Digital IC LB1945D Overview PWM Current Control Stepping Motor Driver The LB1945D is a PWM current control stepping motor driver that uses a bipolar drive technique. It is optimal for use with the carriage and paper feed stepping motors used in printers. Functions and Features PWM current control (external clock) Digital load current selection function (supports 1-2, W1-2, and 2-phase excitation) Built-in high and low side diodes Simultaneous on state prevention function (through-current prevention) Built-in thermal shutdown circuit Noise canceling function Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Motor supply voltage Output peak current Output continuous current Logic system supply voltage Logic input voltage range Emitter output voltage range Allowable power dissipation Operating temperature Storage temperature Symbol VBB max IO peak IO max VCC max VIN VE Pd max Topr Tstg Independent IC tW ≤ 20μs Conditions Ratings 30 1.0 0.8 6.0 -0.3 to VCC 1.0 2.8 -20 to +90 -55 to +150 Unit V A A V V V W °C °C Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment ...