Analog Devices MAX25222 | Demoboard MAX25222EVSYS

Description

The MAX25222 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB used to evaluate MAX25222/MAX25222C automotive 4-channel TFT-LCD power supply with VCOM Buffer. Each output rail (AVDD, NAVDD, VGON, VGOFF, and VCOM) can be independently adjusted through I2C. The EV kit demonstrates the device’s features: adjustable output voltage, fault protection, VCOM temperature compensation, nonvolatile memory programming, and extensive diagnostics to aid in fulfilling ASIL-B safety level.The EV kit exposes an I2C interface which can operate in conjunction with the MINIQUSB+ adapter or a third party I2C master like a general-purpose microcontroller. The EV kit also includes Windows®-compatible software that provides a simple graphical user interface (GUI) for exer- cising the features of the IC. The EV system includes both the EV kit and the MINIQUSB+ adapter board.

Features

• 2.65V to 5.5V Input Range
• Default Output Voltages
• 6.8V Output at 200mA (Boost Converter)
• -6.8V Output at -200mA (Inverting Regulator)
• 12V Output at 15mA (Positive-Charge Pump Regulator)
• -10V Output at 15mA (Negative-Charge Pump Regulator)
• -2.49V Output at 100mA (VCOM Buffer)
• The EV kit components will fit the 2.1MHz frequency. For using 420kHz, HW changes are needed.
• Spread Spectrum
• Dedicated GUI
• Full Sequencing Flexibility
• Proven PCB Layout
• Fully Assembled and Tested

Typical applications

• TFT-LCD power supply

More information

• Datasheet
• IC product information