Analog Devices Inc. LT8722 Demo Board DC3145A

Analog Devices Inc. LT8722 Demo Board DC3145A is an evaluation platform for the LT8722 Monolithic Full-Bridge DC-DC Converter. One side of the full-bridge is driven by a Pulse Width Modulation (PWM) buck power stage, while the other side of the full-bridge is driven by a linear power stage. The LT8722 can deliver up to ±54W of power to its load while only requiring a single inductor. An integrated 25-bit Digital-to-Analog Converter (DAC) controls the LT8722 output voltage. The LT8722 features a Serial Peripheral Interface (SPI) that can set the desired output voltage, output current limits, voltage limits, switching frequency, and control ON/OFF behavior. 

The Analog Devices Inc. LT8722 Demo Board DC3145A features a pre-installed LT8722 in a 3mm x 3mm LQFN-18 package, along with test posts for all key signals. The Demo Board is designed to be used with the Linduino® One DC2026C Demonstration Board. The Linduino One is an Arduino-compatible board that can connect to a Windows-based PC via a USB cable. The Linduino Software can then be used to provide an intuitive Graphical User Interface (GUI) that configures and controls the LT8722 using the SPI interface.

Features

  • LT8722 Full-Bridge DC-DC Converter
  • Designed to be used with the DC2026C Linduino One Demonstration Board
  • 3.1V to 15.0V input voltage (VIN)
  • 4A output current (IOUT)
  • 92.6% efficiency (EFF)
  • 2MHz switching frequency (fSW)

Required Equipment

  • DC2026C Linduino One Demonstration Board
  • Digital Voltage Meter (DVM)
  • 3.1V to 15.0V bench power supply
  • TEC load
  • Mircosoft Windows-based PC with available USB port 

Software

  • Download LT8722 Application Software for Linduino from Analog Devices Inc.

Board Layout

Analog Devices Inc. LT8722 Demo Board DC3145A

Setup Example

Analog Devices Inc. LT8722 Demo Board DC3145A

Analog Devices Inc. LT8722 Demo Board DC3145A