Low voltage motor control demonstration kit
based on the ST7MC2S4 and STS8DNH3LL
Features
■ Voltage range from 5 V to 48 V
■ Current up to 25 A
■ 8 A, 30 V power MOSFET STS8DNH3LL (dual
device) included
■ Compatible with power MOSFETs in SO-8 and
DPAK packages
■ 10 V auxiliary power supply connector
■ SCI (serial communication interface) connector
■ Programming and debug support via 10-pin
ICC connector
■ On-board 2 Kb (256 byte) serial memory
■ Four potentiometers for runtime settings
■ Start/stop button
■ Reset button
■ Debug pins available
STEVAL-IHM015V1
Data Brief
STEVAL-IHM015V1
Description
The STEVAL-IHM015V1 demonstration board is
a complete development platform for low voltage
motor control applications. Based on a cost
effective, flexible and open design, it allows easy
demonstration of the ST7MC2S4 capabilities to
drive low voltage synchronous motors.
The ST7MC2S4 is an 8-bit microcontroller with 16
Kb internal Flash memory.
The STEVAL-IHM015V1 features complete
hardware for developing motor control
applications based on ST7MC peripherals
including motor control peripherals (MTC), and
serial communication interface (SCI).
The STEVAL-IHM015V1 uses an in-circuit
communication (ICC) standard interface to
connect to the host PC via in-circuit
debuggers/programmers such as the inDARTSTX board from Softec. The power stage of the
board is designed to support up to 25 A and up to
50 V. It is possible to use the STS8DNH3LL
devices included on the board, or replace them
with different devices in the SO-8 package (dual
or single devices for chip) or DPAK. Power supply
stages can be easily configured for a wide range
of bus voltages.
September 2008 Rev 1 1/4
For further information contact your local STMicroelectronics sales office.
www.st.com
4
Schematic diagram STEVAL-IHM015V1
1 Schematic diagram
Figure 1. STEVAL-IHM015V1 circuit schematic
3
4
+5
SW4
Ω
R18
47 K
2
C9
100 nF
1
Start/Stop
AM00201
+5
R1
R14
100 Ω
C3
1 µF
P3
50 kΩ
470 Ω
R4
470 Ω
VaRefP3P2
P1
+5
C1
1 nF (NC)
D1
D2
GREEN LED
R2
RED LED
LedCtr
ICC connector : HE10 male type
R5
100 KΩ (NC)
R8
+5
+5
R7
13579
+5
MCCFI
10 KΩ (NC)
TS271ACD (NC)
Ω
47 K
Ω
47 K
J1
2
4
68
10
Ω
R13
10 K
Lin PA
Hin PB
43
44
MCO1 (HS)
MCO2 (HS)
MCO3 (HS)1OSC15OSC2
MCO4 (HS)
U2
3
2
50 kΩ
50 kΩ
GPIO_C
Button
Hin PA
39
40
41
42
PP
V
MCO0 (HS)
PE2/ICAP2_B
PE3/ICAP1_B
MCES
4
V
6
MCO5 (HS)
10 nF
P2
C6
P1
C5
10 nF
10 nF
C4
P1
RDI
TDO
GPIO_A
GPIO_B
37
38
PE1/OCMP1_B
PEO (HS)/OCMP2_B
SS_1
DD_1
V
PA3/PWM0/AIN0
7
8
9
J2
32
33
34
35
36
PD6 (HS)/RDI
PD7 (HS)/TDO
PD5/AIN15/ICCDATA
PD4/EXTCLK_A/AIN14/ICCCLK
PA5/ARTIC1/AIN1
PB0/MCVREF
PB1/MCIA
11
12
13
10
Button
SW3
Ω
R17
47 K
+5
CHIP
-SELECT
Debug
J3
12
12
31
30
PD3/ICAP1_A/AIN13
PD2/ICAP2_A/MCZEM/AIN12
PB2/MCIB
PB3/MCIC14PB4/MISO
3
4
1
2
C8
10 nF
100
+5
P2
Pin
28
29
RESET
PD0/OCMP2_A/AIN11
PD1 (HS)/OCMP1_A/MCPWMV/MCDEM
PB5/MOSI/AIN3
15
16
Reset button
25V
C10
nF
VaRef
25
26
27
VSSA
VSS_0
VDD_0
PB6 (HS)/SCK
PB7 (HS)/SS/AIN4
PC2/OAP
PC3/OAN
19
20
18
17
P3
24
VAREF
OAZ/MCCFI1/AIN6
21
P4100 K
+5
Ω
Ω
R21
33 K
23
PC7/MCPWMW/AIN7
ST7FMC2S4T6-TQFP44
PC4/MCCREF
22
MCCREF
J4
Adjustable
Variable
C13
100 nF
4
JP1
Serial communication
TDO
MCCREF
RDI
123
HEADER 4
R11
(NC)
48 1 5
+
OAP
R6
R12
10 KΩ (NC)
+5
Current sense
R10
(NC)
R9
(NC)
10 KΩ
NTC1
10 KΩ
TEMP
R16
1.2 KΩ
C49
Lin PB
Hin PC
10 nF
25 V
MCES
Lin PC
+5
R15
1 MΩ
100 nF
TEMP
VBUSVal
25 V
C7
X1
+5
6
C2
U1
100 nF (NC)
7
–
2
3
R3
10 KΩ (NC)
2/4
MCIA
MCIB
MCIC
MCVREF
CSTCS-16MX
OAP
LedCtr
R19
C11
100 nF
+5
8
7CK6
5
CC
V
DATA
HOLD
M95020-MN3TP/S
U3
+5
S1Q2W
3
CHIP-
SS
V
4
SELECT
MCCFI
10 KΩ
C12
R20
100 KΩ
1n F / 25 V (NC)
STEVAL-IHM015V1 Revision history
2 Revision history
Table 1. Document revision history
Date Revision Changes
01-Sep-2008 1 Initial release.
3/4
STEVAL-IHM015V1
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