STK672-040GEVB, STK672-050GEVB, STK672-060GEVB STK672 Series Evaluation Board User's Manual Thick−Film Hybrid IC Unipolar Constant−current Chopper (external Excitation PWM) Circuit with Built−in Microstepping Controller Stepping Motor Driver (sine wave drive) http://onsemi.com EVAL BOARD USER’S MANUAL Figure 1. STK672 Series Evaluation Boards This Evaluation Board User’s Manual describes the set-up and use of the STK672 Series Evaluation Board for SANYO Semiconductor (An ON Semiconductor Company) Thick-Film Hybrid IC Unipolar Constant-Current Chopper Circuit with Built-in Microstepping Controller Stepping Motor Driver devices STK672-040-E, STK672-050-E, and STK672-060-E. For datasheets and additional information on these devices, please visit the ON Semiconductor website at www.onsemi.com © Semiconductor Components Industries, LLC, 2012 March, 2012 − Rev. 0 1 Publication Order Number: EVBUM2089/D STK672−040GEVB, STK672−050GEVB, STK672−060GEVB EVALUATION BOARD STK672−040−E and STK672−060−E (100.0 mm x 80.0 mm x 1.6 mm, phenol 1−layer board) Function Generator Peak to peak 5.0 V − 0 V Clock pulse 2−phase stepping motor Vcc1 power supply Vcc2 power supply Figure 2. STK672−040−E / STK672−060−E Evaluation Board http://onsemi.com 2 STK672−040GEVB, STK672−050GEVB, STK672−060GEVB EVALUATION BOARD STK672−050−E (100.0 mm x 80.0 mm x 1.6 mm, phenol 1−layer board) Function Generator Peak to peak 5.0 V − 0 V Clock pulse 2−phase stepping motor Vcc1 power supply Vcc2 power supply Figure 3. STK672−050−E Evaluation Board http://onsemi.com 3 STK672−040GEVB, STK672−050GEVB, STK672−060GEVB SUBSTRATE SPECIFICATIONS (Substrate recommended for operation of STK672−050−E) Size: 100 mm x 80 mm x 1.6 mm 1−layer board Material: Phenol Figure 4. Copper Side (35 m) ALLOWABLE POWER DISSIPATION (Reference value) 5.5 5.2 W STK672−050−E Allowable power dissipation Pdmax W 5 4.7 W 4.5 STK672−040−E STK672−060−E 4 3.5 3 2.5 2 1.5 1 0.5 0 0 20 40 60 80 Ambient temperature, Ta− °C Figure 5. Allowable Power Dissipation http://onsemi.com 4 100 120 STK672−040GEVB, STK672−050GEVB, STK672−060GEVB EVALUATION CIRCUIT 2-phase stepping motor CLK RETURN R11 R10 Vref ENABLE R02 MOI JP2 R01 MO1 MO2 R08 R03 R09 CN1 R05 R07 R06 A JP1 R04 Vcc2(5V) AB B BB COMA COMB GND D1 1 R12 C3 C4 Vcc1 4 5 6 7 8 ＋ ＋ C2 C1 GND(PG) 9 8 7 6 5 4 3 2 1 Hybrid IC: STK672-050(040, 060) Figure 6. Evaluation Circuit http://onsemi.com 5 BB B PG PG AB A Vcc2 Vref M1 M2 M3 M4 M5 CLK GND(SG) CWB RESETB RETURN ENABLE MOI MO1 MO2 22 21 20 19 18 17 16 15 14 13 12 11 10 SG ＋ 2 Slide swich (Pin22) STK672−040GEVB, STK672−050GEVB, STK672−060GEVB BILL OF MATERIALS Table 1. BILL OF MATERIALS FOR STK672−050−E EVALUATION BOARD Substitution Lead Allowed Free 50ME220CA YES YES SUN ELECTRONICS 50ME10CA YES YES ±20% SUN ELECTRONICS 50ME10CA YES YES ±10% Panasonic ECQV1H104JL2 YES YES Resistor to set Vref ±1% AKAHANE ELECTRONICS RN14S****FK YES YES 1 Resistor to set Vref ±1% AKAHANE ELECTRONICS RN14S****FK YES YES R03 to R11 9 Pull-up Resistor 10 kW ±5% AKAHANE ELECTRONICS RN14S103JK YES YES R12 1 Resistor for power on reset circuit 1 kW ±5% AKAHANE ELECTRONICS RN14S102JK YES YES D1 1 Diode for power on reset circuit SANYO Semiconductor DS135AE YES YES Hybrid IC SANYO Semiconductor STK672-050 NO YES 5045-06A YES YES JS01-08AP4-ST YES YES Designator QTY Description Value C1 1 Vcc1 Bypass Capacitor 220 mF / 50 V ±20% SUN ELECTRONICS C2 1 Vcc2 Bypass Capacitor 10 mF / 50 V ±20% C3 1 Capacitor for power on reset circuit 10 mF / 50 V C4 1 Vref stabilization Capacitor 0.1 mF / 50 V R01 1 R02 HIC 1 Tolerance Footprint Manufacturer Manufacturer Part Number (An ON Semiconductor Company) (An ON Semiconductor Company) CN1 1 Vertical Header MOLEX Slide switch 1 Dip slide switch NIHON KAIHEIKI JP1, JP2 2 Jumper Mac-Eight JR-4 YES YES TP1 to TP12 12 Test Point Mac-Eight ST-1-3 YES YES NOTE: R01 and R02 are used to Vref for current setting. Therefore their value is not mentioned in this table. http://onsemi.com 6 STK672−040GEVB, STK672−050GEVB, STK672−060GEVB STK672-060-E Tc - Operating time 70 Operating Temperature Tc ℃ 60 50 40 1.2A 30 1.0A 20 0.8A 10 0 2 4 6 8 10 12 14 16 Operating time min (Condition: Ta=25℃ 1/4step 2000pps Motor L=2.2mH/R=1.5 Ω by Evaluation Board) 18 Vcc=24V 20 VDD=5.0V STK672-040-E Tc - Operating time 70 Operating Temperature Tc ℃ 60 50 40 1.5A 30 1.25A 20 1.0A 10 0 2 4 6 8 10 12 14 16 18 Operating time min (Condition: Ta=25℃ 1/4step 2000pps Motor L=2.2mH/R=1.5 Ω by Evaluation Board) Vcc=24V 20 VDD=5.0V STK672-050-E Tc - Operating time Operating Temperature Tc ℃ 110 100 90 80 70 60 50 40 30 20 10 2.5A 2.0A 1.5A 3.0A with heat sink 0 2 4 6 8 10 12 14 16 18 20 Operating time min (Condition: Ta=25 ℃ 1/4step 2000pps Motor L=2.2mH/R=1.5 Ω Vcc=24V by Evaluation Board) Figure 7. Operating Temperature http://onsemi.com 7 2.5A with heat sink VDD=5.0V STK672−040GEVB, STK672−050GEVB, STK672−060GEVB NOTES: Heat sink size used in STK672-050-E IOH = 3.0 A and 2.5 A: 100 mm X 70 mm X 2.0 mm Al plate (no surface finish) The Tc temperature should be checked in the center of the metal surface of the product package. EVALUATION BOARD SETUP [Setting the motor current] The motor current IOH is set by the Vref voltage on the hybrid IC pin 8. The following formula gives the relationship between IOH and Vref. [Supply Voltage] Vcc1 (10 to 45 V): Power Supply for stepping motor Vref (0 to 2.5 V): Const. Current Control for Reference Voltage Vcc2 (5 V): Power Supply for internal logic IC STK672-040-E IOH=(1/3) x Vref/Rs, Rs: The hybrid IC internal current detection resistor (0.33 W 3%) Vref = Vcc2 (5.0 V) x R02 / (R01 + R02) = IOH x Rs x 3 In case of IOH = 1.2 A, Vref = 1.2 x 0.33 x 3 = 1.19 V [Toggle Switch State] ON Side: Low (GND) OFF Side: High (5 V pull up resistors) [Operation Guide] 1. Motor Connection: Connect the stepping motor to A, AB, B, BB, COMA, and COMB. 2. Initial Condition Setting: Set “ON” the slide switch RESETB, and set “ON or OFF” M1 to M5 depend on step mode, and set “ON or OFF” CWB, and set low CLK. 3. Power Supply: At first, supply DC voltage to Vcc2, and VREF. Next, supply DC voltage to Vcc1. 4. Ready for Operation from Standby State: Turn “OFF” the slide switch RESETB. Output A and BB are set initial position 70%. 5. Motor Operation: Input the CLK signal into the terminal CLK. STK672−050−E IOH=(1/3) x Vref/Rs, Rs: The hybrid IC internal current detection resistor (0.2 W 3%) Vref = Vcc2 (5.0 V) x R02 / (R01 + R02) = IOH x Rs x 3 In case of IOH = 2.0 A, Vref = 2.0 x 0.2 x 3 = 1.2 V STK672−060−E IOH=(1/7.66) x Vref/Rs, Rs: The hybrid IC internal current detection resistor (0.22 W 3%) Vref = Vcc2 (5.0 V) x R02 / (R01 + R02) = IOH x Rs x 7.66 In case of IOH = 0.8 A, Vref = 0.8 x 0.22 x 7.66 = 1.35 V ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. 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