LV8727

Ordering number : ENA1998 LV8727 Bi-CMOS LSI PWM Current Control Stepping Motor Driver http://onsemi.com Overview The LV8727 is a PWM current-controlled micro step bipolar stepping motor driver. This driver can do eight ways of micro step resolution of Half, 1/8, 1/16, 1/32, 1/64, 1/128, 1/10, 1/20 Step, and can drive simply by the step input. Features Single-channel PWM current control stepping motor driver. Output on-resistance (upper side : 0.25Ω ; lower side : 0.15Ω ; total of upper and lower : 0.4Ω ; Ta = 25°C, IO = 4.0A) Half, 1/8, 1/16, 1/32, 1/64, 1/128, 1/10, 1/20 Step are selectable. Advance the excitation step with the only step signal input. BiCDMOS process IC. Available forward reverse control. IO max=4.0A Input pull down resistance Thermal shutdown circuit. With reset pin and enable pin. Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Supply voltage Output current Output peak current Logic input voltage VREF input voltage VM max IO max IO peak VIN max VREF max tw≤10ms, duty 20% 50 V 4A 4.6 A 6V 6V MO / DOWN pin input voltage Allowable power dissipation VMO /VDOWN max Pd max Indipendent IC 6 2.45 V W Operating temperature Topr -30 to +85 °C Storage temperature Tstg -55 to +150 °C Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratin...