EVAL6207Q Dual full bridge with integrated PWM current controllers Data brief Description The EVAL6207Q is a dual full bridge driver board allowing the user to test the L6207Q functions. The dual full bridges integrated into the L6207Q can be used to drive a single two phase stepper motor or up to four DC motors (unidirectional). The device also includes two independent constant OFF time PWM current controllers. The board can be driven using the STEVALPCC009V2 communication board and the PractiSPINTM 2 evaluation software. Features Voltage range from 8 V to 52 V Phase current up to 2.5 Ar.m.s. Adjustable constant tOFF PWM current control Logic inputs 5 V / 3.3 V compliant Small application footprint with high thermal performance Suitable to be used in combination with PractiSPINTM 2 software August 2013 DocID025098 Rev 1 For further information contact your local STMicroelectronics sales office. 1/10 www.st.com Board description 1 EVAL6207Q Board description . Table 1. Electrical specifications Parameter Value Supply voltage (VS) 8 to 52 V Maximum output current (each phase) 2.5 Ar.m.s. Low level logic inputs voltage 0V High level logic input voltage 5 V / 3.3 V(1) Maximum VREFA/VREFB input voltage 3.3 V(2) Switching frequency Up to 100 kHz Operating temperature -25 to +125 °C L6207Q thermal resistance junction-to-ambient 17° C/W 1. Logic inputs are 3.3 V and 5 V compliant. 2. Equivalent to about 3.1 A peak current. Figure 1. Trimmers and connectors location 2/10 DocID025098 Rev 1 EVAL6207Q Board description Table 2. Control board connector pinout (J2) Pin Type Function 2 Ground Ground 3 Logic input Input IN1A of L6207Q 4 Logic input Input IN2A of L6207Q 5 Logic input Input IN1B of L6207Q 6 Logic input Input IN2B of L6207Q 11 Analog input Overcurrent threshold regulation for A bridge 12 Analog input Overcurrent threshold regulation for B bridge 13 Ground Ground 14 Supply voltage 3.3 V supply voltage 16 Logic input Input ENA of L6207Q 23 Ground Ground 24 Analog output Board identification system ID0 25 Analog output Board identification system ID1 27 Logic output Fault output for B bridge 28 Ground Ground 29 Logic output Fault output for A bridge 30 Logic input Input ENB of L6207Q Others Unconnected Table 3. Current sensing connector (J9) Pin Type Function 1 Ground Ground 2 Analog output SENSEA pins of L6207Q(1) 3 Analog output SENSEB pins of L6207Q(1) 4 Ground Ground 1. R22/23 resistors and C12/13 capacitors must be added when output is used. The value of RC network should be chosen according to the target low pass frequency of the filter. DocID025098 Rev 1 3/10 10 DocID025098 Rev 1 616$ 616% - - 5 10 (1% 5 (1$ 9 ,1$ ,1$ ,1% ,1% *1' 96 & 10 2&'$ 2&'% ,' ,' 96 4/10 99 - 5 51 & 10 5 10 6(16(% 6(16($ ,' 5 5 3 5 5 3 5 5 5 N & Q)9 ,' 5 9 5&% 5&$ (1% (1$ 2&'$ 2&'% & Q)9 96 & Q) 9 & S)9 5&% 5&$ ,1% ,1% & Q)9 ,1$ ,1$ & Q)9 & 9 & S)9 & Q)9 & Q)9 5 5 $SSOLFDWLRQUHIHUHQFH & 1& 1& 1& 1& 1& 1& 1& 1& 1& 95()% 5&% 95()$ 5&$ (1% ,1% ,1% (1$ ,1$ ,1$ 8 Q)9 1& 1& 1& 1& 1& 1& 1& 1& 1& 287% 287% 287% 287% 287$ 287$ 5 5 &$ 237,21 6(16(% 96 37+237,21 287$ 287$ 9%227 616$ 616$ 616% 616% 5 6(16($ (3$' *1'*1' /4 9&3 5 & Q) 9 %$76),/0 Q) 9 96% 96% 96$ 96$ ' & *1' 287$ 287% 287% 287$ $0 - - 2 *1' 96 5 10 9 Schematic EVAL6207Q Schematic Figure 2. Schematic EVAL6207Q 3 Bill of material Bill of material Table 4. Bill of material Index Quantity Reference Value Package 1 1 C2 100 F/63 V CAPES-R10H10 2 1 C2A 100 F/63 V (option) CAPE-R8H12-P35 3 1 C1 220 nF/16 V CAPC-0603 4 2 C3, C5 100 nF/4 V CAPC-0603 5 2 C4, C6 100 nF/100 V CAPC-0805 6 1 C7 10 nF/100 V CAPC-0805 7 2 C8, C9 5.6 nF/6.3 V CAPC-0603 8 2 C10, C11 68 nF/6.3 V CAPC-0603 9 2 C14, C15 820 pF/6.3 V CAPC-0603 10 2 C12, C13 NM CAPC-0603 11 1 D1 BAT54SFILM SOT-23 12 3 J1, J5, J6 Screw connector 2 poles MORSV-508-2P 13 1 J2 Pol. IDC male header vertical 30 poles CON-FLAT-15X2-180M 14 1 J9 N.M. STRIP254P-M-4 15 1 RN1 56 k RESN-CAY16 16 1 R1 N.M. RESC-0603 17 1 R2 10 k/1% RESC-0603 18 1 R3 0 RESC-0603 19 1 R4 16.9 k/1% RESC-0603 20 1 R5 100 RESC-0603 21 4 R6, R7, R8, R17 100 k RESC-0603 22 2 R10, R14 4.3 k RESC-0603 23 2 R11, R16 1 k RESC-0603 24 4 R18, R19, R20, R21 0.4 /1 W RESC-2512 25 2 R22, R23 N.M. RESC-0603 26 2 P1, P2 200 k TRIMM-100X50X110-64W 27 2 R24, R25 12 k RESC-0603 28 1 TP1 TPTH-RING-1MM RED TPTH-RING-1MM 29 2 TP2, TP3 TPTH-RING-1MM BLACK TPTH-RING-1MM 30 1 U1 L6207Q QFN7X7_48L DocID025098 Rev 1 5/10 10 Layout 4 EVAL6207Q Layout Figure 3. Layout (silk screen) Figure 4. Layout (top layer) 6/10 DocID025098 Rev 1 EVAL6207Q Layout Figure 5. Layout (inner layer 2) Figure 6. Layout (inner layer 3) DocID025098 Rev 1 7/10 10 Layout EVAL6207Q Figure 7. Layout (bottom layer) 8/10 DocID025098 Rev 1 EVAL6207Q 5 OFF time setting OFF time setting Figure 8. OFF time vs. Roff and Coff 5 RII W2)) > V@ 5 RII 5 RII &RII >Q)@ $0 6 Revision history Table 5. Document revision history Date Revision 07-Aug-2013 1 Changes Initial release. DocID025098 Rev 1 9/10 10 EVAL6207Q Please Read Carefully: Information in this document is provided solely in connection with ST products. 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