AN2684
Application note
STEVAL-IFP006V1: designing with VNI4140K quad high-side
smart power solid-state relay ICs
Introduction
The STEVAL-IFP006V1 demonstration board has been developed to show the new
VNI4140K device functionalities within industrial applications such as PLCs (programmable
logic controllers) which drive lamps, valves, relays, and similar loads.
This tool allows evaluating VNI4140K features, in particular all kinds of embedded self-
protections, power-handling capabilities, operation and diagnostic feedback, thermal
behavior and conformity to inherent IEC standards.
Figure 1.
STEVAL-IFP006V1
A double-sided PCB allows obtaining the best trade-off between a routing solution and
thermal management results.
The main features of the demonstration board are:
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■
■
■
■
■
■
■
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Four output channels (4 x 0.7 A)
Four input channels
Four feedback channels for diagnostic purposes
Bidirectional opto-isolated interface for MCU safe connection
TTL/CMOS compatible signals for MCU direct connection
LEDs to indicate output state
Compliance to IEC61000-4-4 and IEC61000-4-5
Compatibility with existing STMicroelectronics tools (IBU communication board,
CANIC10…)
10.5 V to 36 V DC power supply voltage range
May 2009
Doc ID 14266 Rev 1
1/21
www.st.com
Contents
AN2684
Contents
1
2
3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
VNI4140K quad high-side smart power solid-state relay IC
description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4
IFP006V1 demonstration board description . . . . . . . . . . . . . . . . . . . . . . 8
4.1
4.2
4.3
4.4
4.5
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
IFP006V1 schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
IFP006V1 connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
IFP006V1 thermal management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
EMC immunity test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.5.1
4.5.2
4.5.3
4.5.4
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Test conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Burst immunity test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Surge test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Appendix A Bill of material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Appendix B PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Appendix C References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
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Doc ID 14266 Rev 1
AN2684
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
STEVAL-IFP006V1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
IFP006V1 top view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
IFP006V1 bottom view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
IFP006V1 schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
J1 connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
J5 connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
IFP006V1 PCB copper heatsink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Thermal map in steady state condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Thermal map in demagnetization condition (1 Hz repetitive cycling on 48 W 1.2 H load) . 11
Steady state thermal behavior 3D simulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Repetitive demagnetization thermal behavior 3D simulation (1 Hz repetitive cycling on
48 W 1.2 H load) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Burst timing waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Surge standard timing waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
IFP006V1 component layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
IFP006V1 copper top layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
IFP006V1 copper bottom layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
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Electrical characteristics
AN2684
1
Electrical characteristics
The electrical characteristics of the VNI4140k demonstration board (STEVAL-IFP006V1)
are given in
Table 1.
Table 1.
STEVAL-IFP006V1 electrical characteristics
Parameter
Min
Value
Typ
Max
Notes
Operating conditions
Ambient operating temperature
Power supply
Vcc supply voltage
Vdd logic supply voltage
Supply current on Vdd
2.4 mA
Output stage
Output channel ON current limitation
Maximum DC output current
dV/dt
(ON)
turn-on voltage slope
dV/dt
(off)
turn-off voltage slope
0.7 A
1.4 A
0.7 V/µs
1.5 V/µs
Demagnetization protection
Output voltage on inductive turn-off
V
CC
-41
V
CC
-45
V
CC
-50
I
OUT
= 0.5 A; L
LOAD
>= 1 mH
1.7 A
IC internally limited
V
CC
= 24 V; R
LOAD
< 10 mΩ
Dynamic load
I
OUT
= 0.5 A, resistive load
I
OUT
= 0.5 A, resistive load
4.8 mA
ON state with V
in
= 5 V
10.5 V
24 V
5V
250 µA
36 V
From eval communication board
All channels in OFF state
85 °C
If the VNI4140K junction temperature
exceeds 180 °C, device shuts down
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Doc ID 14266 Rev 1
AN2684
Safety precautions
2
Safety precautions
The board must be used only by expert technicians. The copper areas around the
VNI4140K device have a heat sink function, visible in the top layer layout view, refer to
Figure 8.
In case of short-circuit, current limiting or hard demagnetization, the STEVAL-
IFP006V1 board, or part of it, might reach a very high temperature with consequent danger.
No specific protections are implemented for reverse DC accidental connection. Remember
that an electrolytic capacitor is connected to the supply bus, therefore a reverse continuous
DC voltage applied to it may produce a dangerous explosion.
Warning:
ST assumes no responsibility for any consequences which
may result from the improper use of this tool.
Doc ID 14266 Rev 1
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