LV8731V PWM Constant-Current Control Stepper Motor Driver Monolithic Linear IC www.onsemi.com Overview The LV8731V is a 2channel Hbridge driver IC that can switch a stepper motor driver, which supports microstep drive with 1/16step resolution, and two channels of a brushed motor driver, which supports forward, reverse, brake, and standby of a motor. It is ideally suited for driving brushed DC motors and stepper motors used in office equipment and amusement applications. SSOP44K CASE 940AF Function Singlechannel PWM Current Control Stepper Motor Driver (Selectable with DC Motor Driver Channel 2) Incorporated MARKING DIAGRAM BiCDMOS Process IC Low on Resistance (Upper Side: 0.3 Lower Side: 0.25 Total of Upper and Lower: 0.55 T = 25C, I = 2 A) A O Microstep Mode can be Set to Fullstep, Halfstep, Quarterstep, or LV8731V 1/16step YMWL Excitation Step Proceeds Only by Step Signal Input Motor Current Selectable in Four Steps Output Shortcircuit Protection Circuit (Selectable from Latchtype or Autoresettype) Incorporated Y = Year of Production, Last Number Unusual Condition Warning Output Pins M = Assembly Operation Month WL = Wafer Lot Number No Control Power Supply Required ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 26 of this data sheet. Semiconductor Components Industries, LLC, 2013 1 Publication Order Number: May, 2018 Rev. 4 LV8731V/DLV8731V SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS at T = 25C A Parameter Symbol Conditions Ratings Unit Supply Voltage VM max VM, VM1, VM2 36 V Output Peak Current I peak Tw 10 ms, duty 20%, Per 1ch 2.5 A O Output Current I max Per 1ch 2 A O Logic Input Voltage V ATT1, ATT2, EMM, RST/BLK, STEP/DC22, 0.3 to +6 V IN FR/DC21, MD2/DC12, MD1/DC11, DM, OE, ST MONI/EMO Input Voltage Vmoni/Vemo 0.3 to +6 V Allowable Power Dissipation Pd max (Note 1) 3.25 W Operating Temperature Topr 20 to +85 C Storage Temperature Tstg 55 to +150 C 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. 1. Specified circuit board : 90.0 mm 90.0 mm 1.6 mm, glass epoxy 2layer board, with backside mounting. 2. Caution 1: Absolute maximum ratings represent the value which cannot be exceeded for any length of time. 3. 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. ALLOWABLE OPERATING RATINGS T = 25C A Parameter Symbol Conditions Ratings Unit Supply Voltage Range VM VM, VM1, VM2 9 to 32 V Logic Input Voltage V ATT1, ATT2, EMM, RST/BLK, STEP/DC22, 0 to 5.5 V IN FR/DC21, MD2/DC12, MD1/DC11, DM, OE, ST VREF Input Voltage Range 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 T = 25C, VM = 24 V, VREF = 1.5 V A Ratings Min Typ Max Parameter Symbol Conditions Unit Standby Mode Current Drain IMstn ST = L, I(VM) + I(VM1) + I(VM2) 100 400 A Current Drain IM ST = H, OE = L, with no load 3.2 5 mA I(VM) + I(VM1) + I(VM2) VREG5 Output Voltage Vreg5 I = 1 mA 4.5 5 5.5 V O Thermal Shutdown Temperature TSD Design guarantee 150 180 200 C Thermal Hysteresis Width TSD Design guarantee 40 C MOTOR DRIVER Output On Resistance Ronu I = 2 A, Upperside on resistance 0.3 0.4 O Rond I = 2 A, Lowerside on resistance 0.25 0.33 O Output Leakage Current I leak 50 A O Diode Forward Voltage VD ID = 2 A 1.2 1.4 V Logic Pin Input Current I L ATT1, ATT2, EMM, RST/BLK, 4 8 12 A IN STEP/DC22, FR/DC21, MD2/DC12, MD1/DC11, DM, OE, ST, V = 0.8 V IN I H V = 5 V 30 50 70 A IN IN www.onsemi.com 2