LV8772

www.DataSheet.co.kr Ordering number : ENA1975 LV8772 Overview Bi-CMOS LSI PWM Constant-Current Control Stepping Motor Driver The LV8772 is a stepping motor driver, which is capable of micro-step drive and supports 4W 1-2 phase excitation. It is stepping motors used in office equipment and amusement applications. Features Low on resistance (upper side : 0.3Ω ; lower side : 0.25Ω ; total of upper and lower : 0.55Ω ; Ta = 25°C, IO = 2.5A) Excitation mode can be set to 2-phase, 1-2 phase, W1-2 phase , or 4W1-2 phase BiCDMOS process IC Excitation step proceeds only by step signal input Output short-circuit protection circuit incorporated Motor current selectable in four steps Unusual condition warning output pins No control power supply required Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Supply voltage Output peak current Output current Logic input voltage MONI/EMO input voltage Allowable power dissipation Symbol VM max IO peak IO max VIN Vmoni/Vemo Pd max1 Pd max2 Operating temperature Storage temperature Topr Tstg 1 unit * tw ≤ 10ms, duty 20% Conditions Ratings 36 3.0 2.5 -0.3 to +6 -0.3 to +6 3.0 5.4 -20 to +85 -55 to +150 Unit V A A V V W W °C °C * Specified circuit board : 90.0mm×90.0mm×1.6mm, glass epoxy 2-layer board, with backside mounting. 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 ratings, a...