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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.
Doc ID 023675 Rev 1
11/12
EVAL6480H
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Doc ID 023675 Rev 1
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