EVAL6480H High power stepper motor driver mounting the L6480 Data brief Features ■ Voltage range from 10.5 V to 85 V ■ Low Rds(ON) MOSFETs in DPAK package ■ SPI with daisy chain feature ■ FLAG and BUSY LED indicators ■ Adjustable supply voltage compensation ■ Flexible supply voltage management ■ Suitable for use in combination with the STEVAL-PCC009V2 Applications ■ High power bipolar stepper motor driving Description The EVAL6480H demonstration board is a high power microstepping motor driver. In combination with the STEVAL-PCC009V2 communication board and the evaluation software, the board allows the user to investigate all the features of the L6480 device. In particular, the board can be used to check the voltage mode driving and to regulate the L6480 parameters in order to fit the application requirements. The EVAL6480H supports the daisy chain configuration making it suitable for the evaluation of the L6480 in multi-motor applications. September 2012 Doc ID 023675 Rev 1 This is information on a product in full production. For further information contact your local STMicroelectronics sales office. 1/12 www.st.com 12 Board description 1 EVAL6480H Board description Table 1. EVAL6480H electrical specifications Parameter Value Supply voltage (VS) 10.5 to 85 V Maximum output current (each phase) 25 Ar.m.s. at 25 °C(1) External MOSFET Rds(ON) 33 mΩ typical at 25 °C(1) Gate driver supply voltage (VCC) 7.5 V to 15 V Logic supply voltage 3.3 V Logic interface supply voltage 3.3 V or 5 V Low level logic inputs 0V High level logic input VDD(2) Operating temperature -25 °C to +125 °C 1. Refer to STD25F10 datasheet for details. 2. All logic inputs are 5 V tolerant. Figure 1. Jumper and connector location Slave SPI connector FLAG LED BUSY LED Master SPI connector External switch connector (SW input) Application area Motor supply voltage compensation regulation (ADCIN input) Power supply connector (10.5 V - 85 V) Supply management connector (VS, VSREG, VCCREG and GND) Supply management jumpers Phase A connector Phase B connector AM14874v1 2/12 Doc ID 023675 Rev 1 EVAL6480H Table 2. Board description Jumper and connector description Name Type J5 Power supply Main supply voltage J7 Power output Power bridge A outputs J8 Power output Power bridge B outputs J6 Power supply Integrated voltage regulator inputs J3 SPI Master SPI connector J4 SPI Slave SPI connector JP1 Jumper VS to VSREG jumper JP2 Jumper VSREG to VCC jumper JP3 Jumper VCC to VCCREG jumper JP4 Jumper VCCREG to VREG jumper JP5 Jumper VREG to VDD jumper JP6 Jumper VDD to 3.3 V from SPI connector jump JP7 Jumper Daisy chain termination jumper JP8 Jumper STBY to VS pull-up jumper TP8 (BUSY/SYNC) Jumper BUSY/SYNC output test point Table 3. Function Master SPI connector pinout (J3) Pin number Type 1 Open drain output L6480 BUSY output 2 Open drain output L6480 FLAG output 3 Ground Ground 4 Supply EXT_VDD (can be used as external logic power supply) 5 Digital output 6 Digital input SPI serial clock signal (connected to L6480 CK input) 7 Digital input SPI master Out slave IN signal (connected to L6480 SDI input) 8 Digital input SPI slave select signal (connected to L6480 CS input) 9 Digital input L6480 step-clock input 10 Digital input L6480 standby/reset input Table 4. Description SPI master IN slave OUT signal (connected to the L6480 SDO output through daisy chain termination jumper JP7) Slave SPI connector pinout (J4) Pin number Type Description 1 Open drain output L6480 BUSY output 2 Open drain output L6480 FLAG output Doc ID 023675 Rev 1 3/12 Board description Table 4. 4/12 EVAL6480H Slave SPI connector pinout (J4) (continued) Pin number Type Description 3 Ground Ground 4 Supply EXT_VDD (can be used as external logic power supply) 5 Digital output SPI master In slave Out signal (connected to pin 5 of J3) 6 Digital input SPI serial clock signal (connected to L6480 CK input) 7 Digital input SPI master Out slave In signal (connected to L6480 SDO output) 8 Digital input SPI slave select signal (connected to L6480 CS input) 9 Digital input L6480 step-clock input 10 Digital input L6480 standby/reset input Doc ID 023675 Rev 1 VS 1 R1 100 OSCIN OSCOUT STCK FLAG BUSY Doc ID 023675 Rev 1 2 1 3 5 7 9 1 3 5 7 9 2 4 6 8 10 J4 2 4 6 8 10 SPI_OUT J3 SPI_IN FLAG 3V3 DL1 LED - AMBER R4 470 R2 39k VDD VDD VDD VDD 7 G_HS_A 2 37 OUT_A 2 38 G_LS_A 2 FLAG BUSY 8 29 16 L6480 PGND DGND AGND SDI SDO 30 BUSY_SYNC 31 FLAG CS CK STBY_RES SW STCK 35 GND 39 PGND 23 22 G_HS_B 2 21 OUT_B 2 20 G_LS_B 2 G_HS_B 1 18 OUT_B 1 19 G_LS_B 1 24 25 26 28 PGND 3 G_HS_A 1 2 OUT_A 1 1 G_LS_A 1 N.C. VBOOT 4 C9 47n/100V BAV9 nCS CK SDI SDO CP 9 3 2 17 BUSY FLAG 6 VS D1 34 33 32 VCC_RE G VCC VS_RE G U1 1 C1 470n/ 25V STCK 11 10 12 C8 100n/100V C2 220n/100V VS Application reference 36 DL2 LED- RED R5 470 R3 39k 2 3V3 VS_REG C7 470n/25V JP6 13 VREG 27 VDD 5 ADC_IN 14 OSC_IN 15 OSC_OUT VDD 1 VDD 2 VCC C6 100n/25V 1 CK nCS STBY_RESET 3V3 C12 100p /6V3 CK nCS STBY_RESET FLAG C13 10n/ 6V3 STBY_RESET ADC_IN C5 22u/6V3 VCC_REG 1 1 STCK 2 2 BUSY SDI STCK BUSY C10 10n/6V3 STBY ADC_IN VDD VREG C4 100n/4V 1 JP5 2 SDO 1 2 J2 N.M. 1 GND 1 2 1 STCK J1 N.M. 1 1 FLAG BUSY 1 ADC_IN 1 STBY_RESET C3 100n/6V3 2 VREG VREG 1 VCC_REG JP4 1 VCC 2 JP3 1 STBY 1 VC C 1 ADCIN 2 VS_REG JP2 G_HS_B2 OUTB2 G_LS_B2 G_HS_B1 OUTB1 G_LS_B1 G_HS_A2 OUTA2 G_LS_A2 G_HS_A1 OUTA1 G_LS_A1 Figure 2. VS 1 JP1 EVAL6480H Board description EVAL6480H schematic part 1/2 JP7 1 AM14875v1 5/12 6/12 STBY 4 3 Doc ID 023675 Rev 1 3 R8 50 k/0.125W 3 D2 BZX585-B3V3 2 2 D3 BZX585-B3V6 4 1 3 ADC_IN Q6 STD25NF10 OUTA 2 1 1 G_LS_A2 OUTA2 G_HS_A2 VS G_LS_B1 OUTB1 C15 220n /100V G_HS_B1 1 1 4 R7 100k/0.125W Q5 STD25NF10 4 Q2 STD25NF10 3 VS 1 1 J7 Q1 STD25NF10 Q7 Q8 STD25NF10 2 Q4 STD25NF10 OUTB STD25NF10 1 J8 Q3 STD25NF10 VS 1 2 G_LS_A1 VS 1 VS 1 2 OUTA1 C14 220n/100V G_HS_A1 Application referenc e C11A 220u/100V 4 JP8 R9 N.M . VDD + 4 3 R6 100k/0.125W 1 2 3 4 VS_REG VCC_REG C11 220u/100V 4 N.M. J6 VS + OPTION 4 VS_REG VS VS_REG VCC_REG GND J5 2 1 1 1 G_LS_B2 OUTB2 G_HS_B2 Figure 3. GND VS VS Board description EVAL6480H EVAL6480H schematic part 2/2 3 3 3 1 AM14880v1 EVAL6480H Table 5. Item Board description EVAL6480H - bill of material Quantity Reference Value 1 9 VS, VREG, VDD, VCC, STCK, STBY, FLAG, BUSY, ADCIN TPTH-RING-1MM (red) 2 2 C1,C7 470 nF/25 V CAPC-0603 3 1 C2 220 nF/100 V CAPC-0805 4 1 C3 100 nF/6.3 V CAPC-0603 5 1 C4 100 nF/4 V CAPC-0603 6 1 C5 22 µF/6.3 V CAPC-1206 7 1 C6 100 nF/25 V CAPC-0603 8 1 C8 100 nF/100 V CAPC-0603 9 1 C9 47 nF/100 V CAPC-0805 10 2 C10, C13 10 nF/6.3 V CAPC-0603 11 1 C11 220 µF/100 V CAPES-R18H17 12 1 C11A 220 µF/100 V CAPE-R16H21-P75 13 1 C12 100 pF/6.3 V CAPC-0603 14 1 DL1 LED amber LEDC-0805 15 1 DL2 LED red LEDC-0805 16 1 D1 BAV99 17 1 D2 BZX585-B3V3 SOD523 18 1 D3 BZX585-B3V6 SOD523 19 1 GND TPTH-RING-1MM (black) 20 5 JP1, JP3, JP5, JP7, JP8 Jumper CLOSED JP2SO 21 3 JP2, JP4, JP6 Jumper OPEN JP2SO 22 2 J1, J2 N.M. 23 1 J3 Pol. IDC male header vertical 10 poles (black) CON-FLAT-5X2-180M 24 1 J4 Pol. IDC male header vertical 10 poles (gray) CON-FLAT-5X2-180M 25 3 J5, J7, J8 Screw connector 2 poles MORSV-508-2P 26 1 J6 N.M. STRIP254P-M-4 27 8 Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 STD25NF10 28 1 R1 100 Ω RESC-0603 29 2 R2, R3 39 kΩ RESC-0603 30 2 R4, R5 470 Ω RESC-0603 Doc ID 023675 Rev 1 Package TPTH-RING-1MM SOT-23 TPTH-RING-1MM STRIP254P-M-2 DPAK 7/12 Board description Table 5. EVAL6480H EVAL6480H - bill of material (continued) Item Quantity Reference Value 31 2 R6, R7 100 kΩ / 0.125 W RESC-0603 32 1 R8 33 kΩ / 0.125 W TRIMM-100X50X11064W 33 1 R9 N.M. 34 1 Figure 4. U1 L6480 Package RESC-0603 HTSSOP050P660X11038-EP EVAL6480H - layout (top layer) AM14876v1 8/12 Doc ID 023675 Rev 1 EVAL6480H Board description Figure 5. EVAL6480H - layout (inner layer 2) AM14877v1 Figure 6. EVAL6480H - layout (inner layer 3) AM14878v1 Doc ID 023675 Rev 1 9/12 Board description Figure 7. EVAL6480H EVAL6480H - layout (bottom layer ) AM14879v1 10/12 Doc ID 023675 Rev 1 EVAL6480H 2 Revision history Revision history Table 6. Document revision history Date Revision 14-Sep-2012 1 Changes Initial release. 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