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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 ‘Applications’ 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 the 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  or the Open Design Analyzer button 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

PartQuest Menu Icons
Figure 4. PartQuest Menu Icons

PartQuest Menu Icons

The main menu can be found at the top of the simulation.

Here you can change some design settings, alter your view of the simulation and add probes to display waveforms.

Clicking on the help icon will open a comprehensive guide to using the simulator.

Generic component library

PartQuest Explore Generic Components Library

  • Analog Electronics
  • Continuous Function Blocks
  • Digital Electronics
  • Magnetic and Electromechanical
  • Mechanical
  • Technology Converters
  • Thermal and Electrothermal
  • Three Phase Power

Some components for the above domains may be seen below.

Analog components

Analog Electronics

  • Resistors
  • Capacitors
  • Inductors
  • MOSFETs
  • Diodes
  • Voltage and Current Sources
  • Thermal and Electrothermal
  • Others
Continuous blocks

Continuous Blocks

  • Subtraction Function
  • Addition Function
  • Multiplication Function
  • Integration Function
  • Others
Digital Electronics

Digital Electronics

  • Digital Clock
  • Digital Random Source
  • AND, OR, Inverter, NAND Logic gates
  • Multiplexer
  • PWM
  • Others
Magnetic and Electromechanical

Magnetic and Electromechanical

  • Air Gap
  • Electromagnet
  • Flux Function Generator
  • Linear DCC Motor
  • LVDT Sensor
  • Windings
  • Others
Mechanical

Mechanical

  • Angle Sources
  • Dampers
  • Gears
  • Inertias
  • Weights
  • Pumps
  • Flux flow Generators
  • Fluid reference
  • Hydraulics
  • Displacement Function
  • Spring
  • Others
Technology Converters

Technology Converters

  • Angle Conversion
  • Angular Velocity Conversion
  • Current Conversion
  • Digital from/to Continuous
  • Digital to/from Voltage
  • Digital to Voltage (Differential)
  • Displacement to/from Continuous
  • Flux to/from Continuous
  • Force to/from Continuous
  • Temperature to from Continuous
  • Others
Thermal and Electrothermal

Thermal and Electrothermal

  • Cauer Thermal Network
  • MOSFETs with Electrothermal
  • Diode with Electrothermal
  • LED with Electrothermal
  • Electrical Power to Heat
  • Resistor – Electrothermal
  • Thermal Resistor
  • Thermal Capacitor
  • Thermal Radiation
  • Others
Three Phase Power

Three Phase Power

  • Transformer
  • Three Phase Transformer
  • Three Phase Voltage Source
  • Clarke Inverse Transform
  • Park Transform
  • Others

Block explanation

PartQuest blocks - schematic
Figure 5 a. PartQuest blocks - schematic

Circuit schematic

The circuit shown in Fig. 5 a. is an Electrothermal circuit.

The electrical part is drawn with black wires whereas the thermal circuit is drawn with red wires. The part connecting the 2 domains is the Electrothermal model of the diode. More about other domains can be found in the Generic Components Library section above.

Figure 5 b. PartQuest blocks - measuring VF of the diode PNE20030EP

Waveform of the chosen point

The waveform shown in Fig. 5 b. is the anode - cathode voltage (VF) of the diode D1 (PNE20030EP) in the schematic of Fig 5 a.

The voltage, current, power dissipation and thermal waveforms can be displayed as detailed below.

image Probing the diode cathode voltage
Figure 6. Probing waveform at a node and at a component port

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 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 highlighted area

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-separated 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

PartQuest Nexperia Library

Once in the PartQuest  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 PartQuest library. You may see this in Fig. 15. 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. 16.

Figure 15. Navigating PartQuest 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 16. 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. 17.

Figure 17. 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. 17, 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. 17 a MOSFET was chosen from each category and placed onto the design sheet. These can be seen in Fig. 18 below as the BUK7Y1R7-40H and BUK7S1R0-40H.

Figure 18. Selected Nexperia N-channel MOSFET placed in design sheet

Another method for finding the required Nexperia parts is by using the search in the PartQuest Library panel as shown in Fig. 19.

Figure 19. 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 PartQuest Explore for further simulation functions

Click on Edit in explore.partquest.com (as shown in Fig. 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 PartQuest simulations yourself!

Nexperia Interactive Application Notes

Nexperia Interactive Application Notes

Page last updated 24 November 2021.