Schematic for the LV8731VGEVB Evaluation Board *VM Power supply input terminal 0.1uF 1 VG OUT1A 44 2 VM OUT1A 43 3 CP2 PGND 42 4 CP1 NC 41 5 VREG5 NC 40 6 ATT2 VM1 39 7 ATT1 VM1 38 8 EMO RF1 37 9 CEM RF1 36 10 EMM OUT1B 35 11 CHOP OUT1B 34 12 MONI OUT2A 33 13 RST/BLK OUT2A 32 14 STEP/DC22 RF2 31 15 FR/DC21 RF2 30 16 MD2/DC12 VM2 29 17 MD1/DC11 VM2 28 18 DM NC 27 19 OE NC 26 20 ST PGND 25 21 VREF OUT2B 24 22 GND OUT2B 23 C1 0.1uF C2 0.1uF C3 *VDD Power supply input terminal for Switch SW1 R1 R2 47ｋΩ 47ｋΩ SW2 100pF C6 180pF C5 SW4 SW5 SW6 SW7 SW8 SW9 SW10 *VREF Constant Current Control for Reference Voltage 7/1/2011 SW11 LV8731V C4 SW3 10uF -1- Motor connection terminal 0.22Ω R3 0.22Ω R4 www.onsemi.com