LV8702V Bi-CDMOS LSI www.onsemi.com PWM Current Control High-efficient Stepper Motor Driver Overview The LV8702V is a 2-channel Full-bridge driver IC that can drive a stepper motor driver, which is capable of micro-step drive and supports quarter step. Current is controlled according to motor load and rotational speed at half step, half step full-torque and quarter step excitation, thereby highly efficient drive is realized. Consequently, the reduction of power consumption, heat generation, vibration and noise is achieved. Feature SSOP44J (275mil) Built-in 1ch PWM current control stepper motor driver (bipolar type) Ron (High-side Ron: 0.3 , Low-side Ron: 0.25 , total: 0.55 , Ta = 25C, I = 2.5A) O Micro-step mode is configurable as follows: full step/half step full-torque/half step/quarter step Excitation step moves forward only with step signal input Built-in output short protection circuit (latch method) Control power supply is unnecessary Built-in high-efficient drive function (supports half step full-torque/half step/quarter step excitation mode) Built-in step-out detection function (Step-out detection may not be accurate during high speed rotation) BiCDMOS process IC I max=2.5A O Built-in thermal shut down circuit Typical Applications Printer Scanner Surveillance camera (CCTV) Textile machine ORDERING INFORMATION See detailed ordering and shipping information on page 27 of this data sheet. Semiconductor Components Industries, LLC, 2014 1 Publication Order Number : December 2014 - Rev. 2 LV8702V/D LV8702V Specifications Absolute Maximum Ratings at Ta = 25C Parameter Symbol Conditions Ratings Unit Power supply voltage V max VM , VM1 , VM2 36 V M Output peak current I peak tw 10ms , duty 20% , Per 1ch 3 A O Output current I max Per 1ch 2.5 A O Logic input voltage V GMG1, GMG2 , GAD , FR , STEP , ST , 0.3 to +6 V IN RST , MD1 , MD2 , OE , GST1 , GST2 DST1, DST2, MONI, Vdst1, Vdst2, 0.3 to +6 V Allowable power dissipation Pd max * 5.5 W Operating temperature Topr 40 to +85 C Storage temperature Tstg 55 to +150 C * Specified board : 90.0mm 90.0mm 1.6mm, glass epoxy 4-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, as a result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. Recommended Operating Range at Ta = 25C Parameter Symbol Conditions Ratings Unit Range of power supply voltage V VM , VM1 , VM2 9 to 32 V M Logic input voltage V GMG1 , GMG2 , GAD , FR , STEP , ST , 0 to 5.5 V IN RST , MD1 , MD2 , OE , GST1 , GST2 Range of VREF input voltage VREF 0 to 3 V Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. Electrical Characteristics at Ta = 25C, V = 24V, VREF = 1.5V M Ratings Parameter Symbol Conditions Unit min typ max Consumption current during IMstn ST = L , I(VM)+I(VM1)+I(VM2) 110 400 A standby Consumption current IM ST = H, OE = L, STEP = L, non-load 4.5 6.5 mA I(VM)+I(VM1)+I(VM2) VREG5 output voltage VREG5 I = -1mA 4.5 5 5.5 V O Thermal shutdown temperature TSD Design certification 150 180 210 C Thermal hysteresis width TSD Design certification 40 C Motor driver Output on resistor Ronu I = 2.5A, Source-side Ron 0.3 0.4 O Rond I = 2.5A, Sink-side Ron 0.25 0.33 O Output leak current I leak VM = 32V 50 A O Forward diode voltage VD ID = -2.5A 1.2 1.4 V Logic pin input current IL V = 0.8V GMG1, GMG2, GAD, FR, 48 12 A IN IN STEP, ST, RST, MD1, IH V = 5V 30 50 70 A IN IN MD2, OE, GST1, GST2 ADIN pin input voltage Vadin Ra2 = 100k: refer to 15-4) 0 12 V Logic input High V H GMG1 , GMG2 , GAD , FR , STEP , ST , 2.0 5.5 V IN voltage RST , MD1 , MD2 , OE , GST1 , GST2 Low VL 0 0.8V IN Continued on next page. www.onsemi.com 2