The ISL78226 software enables control and observation of register settings and functional status of the controller. It works primarily via a USB to I2C interface dongle. This dongle also enables logic (GPIO) control of discrete pins of the controller. This software allows the user to interact and evaluate all aspects of the ISL78226 PWM controller.

It is designed to enable the user to quickly test out register settings and mode selections. There are approximately 60 control selections that are programmable at the register hex level or from user-selectable combo controls in the GUI. The software can also poll 70 plus alert and operation indicators.

The ISL78226EVKIT1Z evaluation kit contains:

  • ISL78226EVAL1Z REV A evaluation board
  • ISLUSBADAPT-EVZ REV A USB to I2C interface kit
  • USB cable, I2C cable (4 wires), and GPIO cable (11 wires)

This board can be used to boost 12V to 48V or buck from 48V to 12V. The software GUI enables the user to program fault conditions and control the status of the board.


  • I2C/PMBus compatible digital interface
  • Read/Write registers via direct hex or human translated interface elements
  • Quick access control of EN and PWM_EN Enable pins
  • Functional combo box selection of over 60 control register setting selections
  • Direct hex read of fault and status registers
  • Functional display of faults and operating status
  • File-based save and recall of control register values
  • User-selectable automatic startup options



  • Automotive 12V to 48V bidirectional DC/DC
  • Bidirectional DC/DC for smart grid


Type Title Date
Manual - Development Tools PDF 12.28 MB
Datasheet PDF 6.21 MB
2 items

Design & Development

Software & Tools

Software Downloads

Type Title Date
Library EXE 2.72 MB
Library XLSX 55 KB
PCB Design Files ZIP 6.34 MB
3 items
ISL78226EVKIT1Z: Phase Dropping and Tracking

Part 2: Phase dropping and digital & analog tracking demonstration using the ISL78226EVAL1Z. Learn to program fault response using automated startup to load previously set fault conditions with the ISL78226EVKIT1Z GUI software.