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STEVAL-IFP030V1
High speed digital input current limiter evaluation board based on
SCLT3-8BQ7
Data brief
Description
This evaluation board implements an 8-line
protected digital input termination with serialized
state transfer for Programmable Logic
Controllers. It is based on the SCLT3-8BQ7
device.
The SCLT3-8BQ7 enhances the I/O module
density by cutting the dissipation (78 mW per
input) and reducing the opto-transistor count. An
adjustable digital filter and an LED driver are
embedded in each input section. Its 2 MHz SPI
peripheral output serializes the input state
transfer to the I/O module controller.
Features
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8 inputs - 8-bit SPI output
High side input with common ground
5 V voltage regulator
Package: QFN 7 x 7 - 48L
30 V reverse polarity capable
Adjustable current limiters
LED output for visual status
Optional 16-bit mode with parity check,
temperature and voltage alarms
Daisy chain capable
Input digital filter with adjustable 20 to 160
µs delay
Power dissipation 78 mW per channel
RoHS compliant
December 2015
The STEVAL-IFP030V1 evaluation board
illustrates the flexibility of the SCTL3-8BQ7 with:
8/16-bit mode with parity check, temperature and
voltage alarms; daisy-chain capability; adjustable
digital minimal filter time (20 µs /160 µs).
The STEVAL-IFP030V1 evaluation board can be
chained with many other STEVAL-IFP030V1
evaluation boards.
The adapter board can be placed between the
first STEVAL-IFP030V1 evaluation board of the
chain and the STEVAL-PCC009V2 STM32x
microcontroller evaluation board. This adapter
provides 2 buses: isolated and non-isolated.
DocID028760 Rev 1
For further information contact your local STMicroelectronics sales
office
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www.st.com
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GND
JP1
JP3
JP2
Vcc
DocID028760 Rev 1
GND
33nF
C8
1.0K
R10
(Left Side)
GND
R12
51K
VC U1
MPT 0.5/10-2.54
Vcc
INPUT7
VCS
GND
IN0
IN1
IN2
IN3
IN4
IN5
IN6
IN7
SPM
DVR
1.5M
2
R9
120K
DVR
JMP1
GND
12
11
9
10
8
6
5
31
20
15
7
24
23
22
21
19
18
17
16
14
4
13
3
1K2
GND
TAB
49
VDD
/CS
SCK
MOSI
/MISO
MISO
REF
LD1
LD2
LD3
LD4
LD5
LD6
LD7
LD8
COMS
NC
NC
NC
NC
NC
NC
NC
NC
SCLT3-8BQ7
DVR
OSC
SPM
VC
VCS
IN1
IN2
IN3
IN4
IN5
IN6
IN7
IN8
COMP
COMP
COMP
COMP
NC
NC
NC
NC
NC
NC
NC
U1
GND
25
26
27
28
29
30
32
33
43
34
35
36
37
38
39
40
41
42
44
45
46
47
48
1
8 Steps
64 Steps
R7
R6
9
10
8
6
7
INPUT6
INPUT5
INPUT3
INPUT1
INPUT4
VDD
2.2K IN3
R3
MISO
/CS
SCK
GND
VDD
GND
1K2
JMP3
R11
Off
LED6
LED4
LED2
GND
VDD
GND
MOSI
LED7
Green
LED5
Green
LED3
Green
LED1
Green
16 bits
8 bits
GND
Active
15K
LED0
1K2
JMP2
C7
C6
C5
STEVAL-IFP030V1
SPM
2.2K IN7
2.2K IN6
2.2K IN5
C4
C3
2.2K IN2
R2
2.2K IN4
C2
2.2K IN1
R4
JP0
R5
R8
JP4
VCS
JP5
4
5
JP6
3
Vcc
JP7
INPUT2
2
1
C0
C1
2.2K IN0
R0
R1
Green
Green
Green
Green
MISO
MISO
MOSI
/CS
/CS
/CS
GND
VDD
Vcc
GND
GND
1
2
3
4
5
J2
J1
(Right Side)
Connectable to
Adapter board
(Top Side)
Connectable for
Daisy Chain
J3
SCR4
SCR3
F2
F1
Fid ucia l
F4
F3
(Bottom Side)
Connectable for
Daisy Chain
BG303-05-A-0300-L-G
1
2
3
4
5
BG303-05-A-0300-L-G
1
3
2
4
5
BG302-05-A-L-G
Mechanical
SCR2
SCR1
Miscellaneous
GND
SCK
SCK
SCK
Vcc
1
INP UT 0
CN1
Vcc
Schematic diagram
STEVAL-IFP030V1
Schematic diagram
Figure 1: SCLT3-8BQ7 circuit schematic
GSPG1412151150SG
STEVAL-IFP030V1
2
Ordering information
Ordering information
To order the PLC digital input kit based on SCLT3-8BQ7, use the order codes STEVALIFP030V1 and STEVAL-PCC009V2.
DocID028760 Rev 1
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Revision history
3
STEVAL-IFP030V1
Revision history
Table 1: Document revision history
4/5
Date
Version
Changes
17-Dec-2015
1
Initial release.
DocID028760 Rev 1
STEVAL-IFP030V1
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DocID028760 Rev 1
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