LV8712T

Ordering number : ENA1674A LV8712T Bi-CMOS LSI PWM Constant-Current Control Stepping Motor Driver http://onsemi.com Overview The LV8712T is a stepping motor driver of the micro-step drive corresponding to supports 2W 1-2 phase excitation. It is the best for the drive of the stepping motor for a scanner and a small printer. Features Single-channel PWM constant-current control stepping motor driver incorporated. Excitation mode can be set to 2-phase, 1-2 phase, W1-2 phase , or 2W1-2 phase Microstep can control easily by the CLK-IN input. Power-supply voltage of motor : VM max = 18V Output current : IO max = 0.8A Output ON resistance : RON = 1.1Ω (upper and lower total, typical, Ta = 25°C ) A thermal shutdown circuit and a low voltage detecting circuit are built into. Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Motor supply voltage Logic supply voltage Output peak current Output continuousness current Logic input voltage Allowable power dissipation Operating temperature Storage temperature Symbol VM max VCC max IO peak IO max VIN Pd max Topr Tstg Conditions Each 1ch, tw ≤ 10ms, duty 20% Each 1ch * * Specified circuit board : 57.0mm×57.0mm×1.7mm, glass epoxy 2-layer board. Ratings 18 6 1.0 800 -0.3 to VCC + 0.3 1.35 -20 to +85 -55 to +150 Unit V V A mA V W °C °C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is ...