Interactive application notes tutorial

Getting started with Nexperia interactive application notes

Nexperia's Interactive application notes provide general guidelines for various power designs and topologies. A simulator is embedded inside the application with a predefined schematic. This simulator provides a direct view of the performance from system level down to individual component level.

Navigating to Interactive application note pages

To access the interactive application note pages, you can navigate from the ‘Application’ tab on the Nexperia main website page. Scroll down to the last section of that page to find the ‘Interactive application notes’ section.  By clicking on one of the interactive application notes, you will gain full access to the text of the system description which include embedded simulations.

Nexperia website navigation image

Figure 1. Navigation to interactive application notes

Using the embedded simulator

Take IAN50001 - Reverse battery protection in automotive applications as an example to show how to use the embedded simulator. To open the embedded simulation, simply hover over the simulation image. Left click the start icon  to see the simulation result of the designed circuit.

Nexperia interactive application note simulation start

Figure 2. Launching the embedded simulation

The simulation will now open inside the interactive application note page.

image example simulation

Figure 3. Simulation running inside the interactive application note

Icons and functions

Icon Function Remark
Design settings

3 options:

  • show all
  • Show selected labels
  • Hide all labels
Zoom in  
Zoom out  
Zoom to fit  
Enter full screen mode  
Exit full screen mode  
Waveform probe Left click probe and drag it to the position you would like to test. Current, voltage and power can be tested.
Help  
Waveform view Displays waveforms under the schematic.
View waveform in new window  
Pin viewer to schematic  
Waveform analyser Allows calculations to be performed, such as power dissipation, duty cycle, overshoot etc.

Figure 4. SystemVision Icons

Block explanation

Block Explanation
Circuit schematic. Signal source, components connected with black lines.

Waveform of the chosen point.

Voltage, current, power dissipation and thermal can be tested.

Left image shows VF of the diode PNE20030EP.
Thermal RC network of mounting base to ambient

Figure 5. SystemVision blocks

Waveform viewer

There are 2 ways to view the simulation waveforms.

The first one is to view the waveform in the wave box displayed in the schematic. The other way is to check waveform in the wave viewer.

Set wavebox view

Click the probe and drag it into position. If the probe is at a wire or component terminal the default is to display voltage. If the probe stays at a component the required waveform(s) can be selected. Note I(p1) means the current flow into port 1 of the device. I is default.

Figure 6. Probing the diode cathode voltage

Figure 7. Current probing at R2

Zoom in and Zoom out of waveform area

Left click and drag to the focus area you want to zoom in then release. The area in blue will be zoomed in. Right click then click View All, waveform will be zoomed out.

Figure 8. Area highlighted in blue to be zoomed in Figure 9. Zoomed in view of area highlighted in blue

Waveform menu

Right click on waveform, a menu will be displayed as shown below:

Figure 10. Waveform menu

Display Mode

Multi trace and Overlaid waveform views can be displayed in the wave box:

Multi trace view

Overlaid trace view

Figure 11. Display mode

Colors

Waveform colors can be customized.

Cursor

Click add cursor, the cursor will be added into waveform and relevant electrical reading will be displayed.

Download waveforms

Click download waveforms, the waveform data will be downloaded as a CSV (comma-seperated values) file, which can be opened in Excel.

Wave viewer

Press Plot in viewer, the waveform will be displayed in wave viewer.

Figure 12. Waveform viewer

Click  to open the waveform in a new window.

Math operations

Math operations are quite limited in wave box, only addition, subtraction, multiplication, and division can be used. It can be more useful when plotting waveforms in the viewer and using the waveform analyser.

 

Figure 13. Function summary for embedded simulation

SystemVision Nexperia Library

Once in the System Vision Cloud environment you may want to edit one of the many Nexperia designs to fit your own application specifications - or to create your own design using Nexperia parts. In either case, in order to find the relevant parts that you may require for your design, you will want to click on the partner button within the SVC library. You may see this in Fig. 14. There you will see Nexperia as one of the partners and by clicking on that other categories will appear from which, one can choose the NMOS Automotive MOSFETs seen in Fig. 15.

Figure 14. Navigating SystemVision components: Partner / Nexperia / NMOS

Moreover, a dropdown menu will show when choosing Automotive MOS with the different VDS(max) ratings from 30 V to 100 V and for each voltage rating there are the different packages: LFPAK33, LFPAK56, LFPAK56D, LFPAK56E, LFPAK88 and D2PAK.

Figure 15. Selecting a Nexperia N-channel MOSFET by VDS rating and package

Once in the selected voltage menu and package one may select the desired RDSon range. An example may be seen in Fig. 16.

Figure 16. Nexperia N-channel MOSFET RDSon selection

Within the RDSon menu one may be able to select the MOSFETs required for their design. Some examples of MOSFETs in the LFPAK56 and LFPAK88 packages may be seen in Fig. 16, in each menu a selection of MOSFETs is shown with the RDSon below 10 mΩ.

As an example, from LFPAK56 and LFPAK88 MOSFET selections seen in Fig. 16 a MOSFET was chosen from each category and placed onto the design sheet. These can be seen in Fig. 17 below as the BUK7Y1R7-40H and BUK7S1R0-40H.

Figure 17. Selected Nexperia N-channel MOSFET placed in design sheet

Another method for finding the required Nexperia parts is by using the search in the SystemVision Cloud Library panel as shown in Fig. 18.

Figure 18. Fast library searching

For fast library searches one should use the Nexperia naming rule for the specific components. An example is given below for the Nexperia Automotive MOSFETs.

Download the 2021 Nexperia Selection Guide

Enter SystemVision for further simulation functions

Click on Edit in systemvision.com (as shown in figure 3) to change the setting of the circuits. The main circuit will be shown in the centre. The circuit designers will be listed on the right of page.

Have fun with building and customizing SystemVision simulations yourself!

Page last updated 30 March 2021.