You can open the PI Device Selection form by clicking on the device in the Schematic tab, using the navigation tree or through the toolbar or the Active Design menu.
The PI Device selection dialog gives user information about the controller, displaying the electrical characteristics and features which are defined by the Feature Code (H-XXX appended after Device designator). User can select device manually.
Device specification
In this panel you can specify the breakdown voltage required, the cable drop compensation, current limit mode and package. If one or more of these fields are disabled, it means that for the selected product family, no other option is available but the one shown.
PI Expert automatically chooses the best possible pair of "Device - H-code" for the Design 
just after its creation. When optimization has completed successfully PI Device Selection form automatically marks the chosen device with the target 
icon.
When the user selects the device on their own, the icon is changed to this one 
.
Cable Drop Compensation - cable drop compensation on the output.
Current limit mode - You can choose between standard or increased by clicking on the calculator 
icon. Click the user 
icon to toggle between calculated and user entered value.
Breakdown Voltage - Drain-to-Source Breakdown Voltage.
Package - IC controller package.
Configure your Device
In this section you can further narrow down the controller selection by specifying some or all features required for a specific application. Each drop down menu contains the options available for a specific feature. Once a selection is made, the device table underneath gets updated to show all devices available for the combination of selected features.
It is important to notice that when an option for a specific feature gets selected, the options available in the other drop down menus get filtered out to reflect the combination availability.
The controller size and feature code can be selected by left click on the table row which shows the desired record.
Product – Product name, identifies the device size.
Output profile - InnoSwitch4-IC output characteristic. Depending on other selected features you may choose Fixed CC or CV only output profiles.
AR Threshold - The Output Voltage at which the InnoSwitch4 IC will automatically restart .This may be expressed as a voltage or as a percentage of the nominal output voltage, depending on the design requirements.
AR & OVL Response - How the InnoSwitch4 will respond if AR Threshold or Over Load is detected. Depending on the selected feature either Auto Restart or Latch-off as the response will result.
Vout OVP – The output voltage at which the InnoSwitch4 IC will automatically shut down in order to protect the connected device from damage. If no value is specified, the product does not have overvoltage protection.
Secondary fault response - How the InnoSwitch4 will respond to secondary fault detection. Depending on the selected features you may choose either Auto-Restart or Latch-Off as the response.
OTP Response - Out of regulation Over-Temperature Response: How the InnoSwitch4 IC will respond if the Over Temperature Threshold is reached. Depending on other selected features, you may choose Hysteretic Restart or Latch-off.
Line UV/OV - The ability of the InnoSwith4 to detect Input Line Over Voltage (OV) and Input Line Under Voltage (UV) detection. Depending on the other selected features, you may choose enabled or OV disabled/UW enabled.
To select a device:
1.Click the row of the device you want to select.
2.The user selected icon appears to indicate a manual selection.
3.If you choose to optimize the design with your manual device selection present, the
optimization process will give design results using only the device you have selected.
If you would like to revert back to the device chosen during optimization:
1.Click the Auto Pick 
button.
2.The auto pick icon will appear in the row of the device PI Expert has chosen.
3.Optimize the design. You need to optimize the design because the auto pick feature
selects the device based on the datasheet specified output power and not the specific
applications like the optimization process does.
The Selected Device Configuration section
displays the details of the current device size- feature code combination. The value of each feature is clearly presented. This is particularly useful when after having made one or more selections in the features dropdown menus, the device table still shows two or more records.