Stepper motor driver mounting the L6208Q
Features
■ Voltage range from 8 V to 52 V
■ Phase current up to 2.5 Ar.m.s.
■ Adjustable PWM current control OFF-time
■ Logic inputs 5 V / 3.3 V compliant
■ Small application footprint with high thermal
performance
■ Suitable for use in combination with
PractiSPIN™ 2 software
EVAL6208Q
Data brief
Description
The EVAL6208Q is a stepper motor driver board
allowing the user to test the L6208Q functions.
The board can be driven using the STEVALPCC009V2 communication board and the
PractiSPIN 2 evaluation software.
AM11912v1
April 2012 Doc ID 023044 Rev 1 1/9
For further information contact your local STMicroelectronics sales office.
www.st.com
9
Board description EVAL6208Q
1 Board description
Table 1. EVAL6208Q electrical specifications
Parameter Value
Supply voltage (VS) 8 to 52 V
Maximum output current (each phase) 2.5 Ar.m.s.
Low level logic input voltage 0 V
High level logic input voltage 5 V / 3.3 V
Maximum VREFA/VREFB input voltage (J2 connector) 3.3 V
Switching frequency Up to 100 kHz
Operating temperature - 25 to +125 °C
L6208Q thermal resistance junction-to-ambient TBD
1. Logic inputs are 3.3 V and 5 V compliant.
2. Equivalent to about 3.1 A peak current.
(1)
(2)
Figure 1. Trimmer and connector locations
Application
reference area
Phase A connector
Phase B connector
Phase B t
regulation
OFF
Phase A t
Power supply connector
(8 V - 52 V )
regulation
OFF
Control board
connector
AM12707v1
2/9 Doc ID 023044 Rev 1
EVAL6208Q Board description
Table 2. Control board connector pinout (J2)
Pin Type Function
2 Ground Ground
3 Logic input Active low reset of L6208Q
4 Logic input Direction input (CW/CCW input of L6208Q)
5 Logic input Decay mode selection input (CONTROL input of L6208Q)
6 Logic input Step clock input (CLOCK input of L6208Q)
11 Analog input Reference voltage for phase A current control
12 Analog input Reference voltage for phase B current control
13 Ground Ground
14 Supply voltage 3.3 V supply voltage
16 Logic input Device enable input (EN input of L6208Q)
23 Ground Ground
24 Analog output Board identification system ID0
25 Analog output Board identification system ID1
28 Ground Ground
29 Logic output Fault output (EN output of L6208Q)
30 Logic input Step mode selection input (HALF/FULL input of L6208Q
Others Unconnected
Doc ID 023044 Rev 1 3/9
Board description EVAL6208Q
Figure 2. EVAL6208Q - Schematic
OUT1A
VS
PTH OPTION
220n/16V
C1
OUT2A
J3
1
2
C2A
OPTION
+
21
10n/100V
C7
3
D1
BAV99
1 2
C6
100n/100V
C4
VS
100n/100V
+
C2
100u/63V
40
R5 100
35
34
27
26
U1
VBOOT
VCP
VSA
VSA
VSB
VSB
RESET
3
39
OUT1A2OUT1A
OUT2A38OUT2A
L6208Q
EN
RESET41CLOCK43CW/CCW
20
44
CONTROL
CW_CCW
CLOCK
C8
R6 100k
5.6n/6V3
HALF/FULL
CONTROL19VREFA
18
HALF_FULL
OUT1B
2
11
OUT1B10OUT1B
RCA48RCB
42
RCA
C9
OUT2B
1
23
OUT2B22OUT2B
VREFB
17
68n/6V3
13
RCB
J4
NC25NC28NC29NC30NC32NC33NC36NC37NC
NC1NC4NC5NC7NC8NC9NC12NC14NC
C10
47
24
68n/6V3
SNSB
SNSB
SNSA
SNSA
GND
GND
EPAD
SENSEBSENSEA
R17
0.4/1W
16
R16
0.4/1W
15
46
R15
45
0.4/1W
R14
0.4/1W
31
6
49
TP3
1
GND
C12
820p/6V3
C11
820p/6V3
Application reference
R21 56k
RESET
R22 56k
R23 56k
CW_CCW
CONTROL
EN DIAG
R24 56k
3V3
CLOCK
R9
R7 4k3
EN
VS GND
3V3 3V3
TP2
TP1
C5
100n/4V
R2
10k/1%
NM
R1
1
1
VS
1
J1
VS
2
ID1
ID0
52V - 8V
GND
R4
R3
20k/1%
C3
100n/4V
0
1234567891011121314151617181920212223242526272829
J2
4/9 Doc ID 023044 Rev 1
RCB
1k
R8
10k
1k
R11
R10 4k3
R20 56k
DIAG
ID0
ID1
HALF_FULL
30
RCA
CON-FLAT-15X2-180M-INLINE
R13
R12
200k
200k
13
2
2
12k
R19
13
12k
R18
AM11913v1
EVAL6208Q Board description
Table 3. EVAL6208Q - bill of material
Index Quantity Reference Value Package
1 1 C1 220 nF /16 V CAPC-0603
2 1 C2 100 µF / 63 V CAPES-R10H10
3 1 C2A 100 µF / 63 V (OPTION) CAPE-R8H12-P35
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 1 C8 5.6 nF / 6V3 CAPC-0603
8 2 C9,C10 68 nF / 6V3 CAPC-0603
9 2 C11,C12 820 pF / 6V3 CAPC-0603
10 1 D1 BAV99 SOT23
11 3 J1,J3,J4 Screw connector 2 poles MORSV-508-2P
12 1 J2
13 1 R1 NM RESC-0603
14 1 R2 10 kΩ / 1% RESC-0603
15 1 R3 0 RESC-0603
16 1 R4 20 kΩ /1% RESC-0603
17 1 R5 100 Ω RESC-0603
18 1 R6 100 kΩ RESC-0603
19 2 R7,R10 4.3 Ω RESC-0603
20 1 R8 10 kΩ RESC-0603
21 2 R9,R11 1 kΩ RESC-0603
22 2 R12,R13 200 kΩ TRIMM-100x50x110-64W
23 4 R14,R15,R16,R17 0.4 Ω / 1 Ω RESC-2512
24 2 R18,R19 12 kΩ RESC-0603
25 5
26 1 TP1 TPTH-RING-1MM RED TH
27 2 TP2,TP3
28 1 U1 L6208Q QFN7x7_48
R20,R21,R22,R23,R2
4
Pol. IDC male header
vertical 30 poles
56 kΩ RESC-0603
TPTH-RING-1MM
BLACK
CON-FLAT-15X2-180M
TH
Doc ID 023044 Rev 1 5/9
Board description EVAL6208Q
Figure 3. EVAL6208Q - layout (silk screen)
AM11914v1
Figure 4. EVAL6208Q - layout (top layer)
Figure 5. EVAL6208Q - layout (inner layer 2)
6/9 Doc ID 023044 Rev 1
AM11915v1
AM12696v1
EVAL6208Q Board description
Figure 6. EVAL6208Q - layout (inner layer 3)
AM12697v1
Figure 7. EVAL6208Q - layout (bottom layer)
AM1269
8v1
Doc ID 023044 Rev 1 7/9
Revision history EVAL6208Q
2 Revision history
Table 4. Document revision history
Date Revision Changes
03-Apr-2012 1 Initial release.
8/9 Doc ID 023044 Rev 1
EVAL6208Q
Please Read Carefully:
Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the
right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any
time, without notice.
All ST products are sold pursuant to ST’s terms and conditions of sale.
Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no
liability whatsoever relating to the choice, selection or use of the ST products and services described herein.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this
document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products
or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such
third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED
WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS
OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.
UNLESS EXPRESSLY APPROVED IN WRITING BY TWO AUTHORIZED ST REPRESENTATIVES, ST PRODUCTS ARE NOT
RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING
APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY,
DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE
GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void
any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any
liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries.
Information in this document supersedes and replaces all information previously supplied.
The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
© 2012 STMicroelectronics - All rights reserved
STMicroelectronics group of companies
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -
Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com
Doc ID 023044 Rev 1 9/9
Loading...