for further information contact your local stmicroelectronics sales office. august 2013 docid025098 rev 1 1/10 EVAL6207Q dual full bridge with integr ated pwm current controllers data brief features ? voltage range from 8 v to 52 v ? phase current up to 2.5 a r.m.s. ? adjustable constant t off 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 practispin tm 2 software 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 steval- pcc009v2 communication board and the practispin tm 2 evaluation software. www.st.com
board description EVAL6207Q 2/10 docid025098 rev 1 1 board description . figure 1. trimmers and connectors location table 1. electrical specifications parameter value supply voltage (vs) 8 to 52 v maximum output current (each phase) 2.5 a r.m.s. low level logic inputs voltage 0 v high level logic input voltage 5 v / 3.3 v (1) maximum vref a /vref b 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.
docid025098 rev 1 3/10 EVAL6207Q board description 10 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) 1. r22/23 resistors and c12/13 capacitors must be add ed when output is used. the value of rc network should be chosen according to the target low pass frequency of the filter. 3 analog output senseb pins of l6207q (1) 4 ground ground
schematic EVAL6207Q 4/10 docid025098 rev 1 2 schematic figure 2. schematic 9 6 2 8 7 $ 2 8 7 % 2 8 7 % * 1 ' * 1 ' 9 9 9 6 * 1 ' 6 1 6 $ 6 1 6 % 2 8 7 $ 3 7 + 2 3 7 , 2 1 $ s s o l f d w l r q u h i h u h q f h 6 ( 1 6 ( $ 6 ( 1 6 ( % , ' , ' 2 & ' $ 2 & ' % ( 1 $ ( 1 % , ' , 1 $ , 1 $ , 1 % 2 & ' $ 6 ( 1 6 ( $ 2 & ' % 6 ( 1 6 ( % , 1 % , ' ( 1 $ ( 1 % , 1 $ , 1 $ , 1 % , 1 % 5 & % 5 & $ 5 & $ 5 & % 9 9 6 9 9 9 6 9 6 - - 5 1 & q ) 9 & q ) 9 & q ) 9 8 / 4 2 8 7 $ 2 8 7 $ 2 8 7 % 2 8 7 % * 1 ' * 1 ' 9 6 % 9 6 % 9 6 $ 9 6 $ 9 % 2 2 7 ( 3 $ ' , 1 % , 1 % ( 1 % ( 1 $ , 1 $ , 1 $ 6 1 6 $ 6 1 6 $ 6 1 6 % 6 1 6 % 2 8 7 % 2 8 7 % 2 8 7 $ 2 8 7 $ 9 & 3 5 & $ 5 & % 9 5 ( ) % 9 5 ( ) $ 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 1 & 5 n & q ) 9 5 1 0 5 5 5 5 & q ) 9 - 5 ' % $ 7 6 ) , / 0 5 1 0 5 & s ) 9 5 5 5 5 & q ) 9 - 5 5 1 0 & q ) 9 3 & 1 0 5 5 5 & $ 2 3 7 , 2 1 5 3 & 9 & q ) 9 & q ) 9 & q ) 9 & 1 0 - & s ) 9 $ 0
docid025098 rev 1 5/10 EVAL6207Q bill of material 10 3 bill of material table 4. bill of material index quantity reference value package 11 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
layout EVAL6207Q 6/10 docid025098 rev 1 4 layout figure 3. layout (silk screen) figure 4. layout (top layer)
docid025098 rev 1 7/10 EVAL6207Q layout 10 figure 5. layout (inner layer 2) figure 6. layout (inner layer 3)
layout EVAL6207Q 8/10 docid025098 rev 1 figure 7. layout (bottom layer)
docid025098 rev 1 9/10 EVAL6207Q off time setting 10 5 off time setting figure 8. off time vs. r off and c off 6 revision history & r i i > q ) @ w 2 ) ) > v @ 5 r i i 5 r i i 5 r i i $ 0 table 5. document revision history date revision changes 07-aug-2013 1 initial release.
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