MTO-EV005(TB67S109AFTG)

Instruction manual for Evaluation Board of TB67S109AFTG May 10, 2016 Re v.1.0 【Outline】 The TB67S109A is a two-phase bipolar stepping motor driver using a PWM chopper. CLK-IN control system and BiCD process are adopted. Rating of 50V and 4.0A is realized. This evaluation board mounts necessary components to evaluate the IC. Each excitation drive of full step, half step, quarter step 1/8 step, 1/16 step, and 1/32 step can be run with PWM constant current drive. Please sense low noise and low vibration of the stepping motor. 【Note】 In using, please be careful about thermal condition sufficiently. As for each control signal, please refer to the IC specification by accessing to the below URL. http://toshiba.semicon-storage.com/us/product/linear/motordriver/detail.TB67S109AFTG.html Further, the application of this evaluation board is limited to the purpose of evaluating and learning the motor control. Please do not ship them to a market. Connection to Evaluation board Corresponding table (Silk name vs. Signal name) Two-phase bipolar type Stepping motor (Note) Silk name and signal name on the board are different because the series products have the common board. Silk name L_OUT 38 39 VREFB 42 OSCM 44 45 46 47 2 3 4 Signal name NC LO DMODE0 VREFB VREFA OSCM CW/CCW MO DMODE1 DMODE2 CLK ENABLE RESET Power source of VM (10V to 47V) VM GND VrefB(for B-axis) VrefA(for A-axis) Reference voltage for motor current set Vref (0V to 3.6V) Setting evaluation board１ １ Setting motor current Setting motor current Iout(max) = VREF(gain) x Vref(V) RRS(Ω) VREF(gain):Decay ratio of VREF: 1/5.0 (typ.) RRS=0.22Ω RRSB R_VRF1 R_VRF2 Mounted area RRSA JP_VRF2 JP_VRF1 VrefA VrefB Waveform of motor current Charge Fast Slow VREF of A-axis and B-axis are made common by short the jumper (JP_VRF1) and the both voltages are possible to input from VREFA pin. And Vref can be generated from the internal regulator (VCC) by mounting the divider resistance to R_VRF1 and R_VRF2 and shortcircuiting JP_VRF2. Current value of setting motor Setting evaluation board２ ２ Setting chopping frequency of the constant current of the motor Formula of setting chopping frequency fOSCM = 1 / [0.56 x ｛C x (R1 + 500)}] fchop = fOSCM / 16 C Waveform of motor current Charge Fast Slow Chopping frequency (fchop) R1 Recommended frequency range: fchop=40kHz to 150kHz 70kHz configuration Mounted parts are as follows; Capacitor (C=270pF), Resistance (R1=5.1kΩ) Setting evaluation board3 Setting motor operation 【Enhanced figure of jumper part】 】 Fixed level by jumper VDD pin JP_VCC Jumper indicated above is adopted on this evaluation board to set operation of the TB67S109AFTG. To select the function by the jumper, shortcircuit JP_VCC or supply the voltage of high level by VDD pin. In above, fixed level of the silk near the jumper is indicated inside the white frame. Please change the short position according to the configuration of the usage function. In case of inputting the signal externally, please remove the short pin. Circuit of evaluation board CONNECTOR 38 VCC L_OUT VM 23 NC23 39 22 40 21 41 20 IC mounted area 42 43 OSCM 44 44 SW44 NC48 OUT_A- 47 14 48 13 NC13 4 5 NC1 6 7 NC6 46 NC14 OUT_A+ CON3 CONNECTOR CON1 8 9 10 11 12 NC9 R_RSA SW45 C_VM2 OUT_AOUT_A+ 17 15 R_MOUT 45 OUT_B- 16 3 CON2 OUT_B+ 18 46 2 OUT_B- 19 45 1 CONNECTOR OUT_B+ C_OBM 24 NC24 38 C_OAM R_VRF2 NC37 37 JP_VRF1 C_VRFA NC25 NC12 C_OAP 42 SW42 NC28 NC31 NC33 + C_OBP NC36 RSB 36 35 34 33 32 31 30 29 28 27 26 25 JP_VRF2 C_VRFB VREFB R_ID C_OSCM R_OSCM JP_VCC R_VRF1 SW4 C_VM1 R_RSB 39 3-toggle switches or Jumper C_VCC R_LOUT CON5 RSA : Socket pin : Check pin SW46 47 Blue line is for power system. Please make it thick wiring for a blue line. SW47 SW3 SW4 C_VDD SW2 CONNECTOR CON4 2 3 4 VDD : Jumper : Solder land＋Through hole (Please provide the land for surface-mounting component which has a through hole.) : Solder land