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  2. Power Management
  3. Display Control and Power
  4. LCD/CCD/OLED Bias
  5. MAX25221

Data Sheet Rev. 5
PDF
Interactive Data Sheet

Overview

Features and Benefits

  • High Integration
    • Synchronous Boost Provides AVDD of 4.2V to 10.5V at up to 200mA
    • NAVDD Inverter Output at up to -200mA
    • 15mA VGON Output (7.6V to 20.2V) from 3x Regulated Charge Pump
    • VGOFF (-18.2V to -5.6V) from Regulated Charge Pump at up to -15mA (Charge-Pump Doubler)
    • Controlled Sequencing during Power-On and Power-Off of All Rails
    • VCOM Output Range +1V to -2.49V in 6.83mV Steps (MAX25221/B/C)
    • NTC Input for Temperature Measurement/Compensation (MAX25221/B/C)
  • Low EMI
    • 420kHz/2.1MHz Switching Frequency with Spread Spectrum
  • I2C Control/Diagnostic Interface with FLTB (Interrupt) Output
    • UV Diagnostics on All Outputs
  • Versatile
    • Non-Volatile Output Voltage Settings on AVDD/NAVDD, VGON, VGOFF, VCOM, and Sequencing
    • Supports Stand-Alone Operation Mode after Programming
    • Compact 5mm x 5mm TQFN32 Package
  • ​AEC-Q100 Grade 1

Product Details

The MAX25220/MAX25221/MAX25221B/MAX25221C are a 4-channel TFT-LCD power IC that provides symmetrical positive AVDD and negative NAVDD supplies as well as VGON and VGOFF gate supplies. In addition, a VCOM buffer with output voltage range above and below ground and a temperature measurement block are integrated (MAX25221/B/C).

The device contains non-volatile memory so that the values of all outputs can be calibrated for the lifetime of the device (maximum five times).

Programming is carried out using the built-in I2C interface, which can also be used to read back diagnostic information. A stand-alone mode is also available.

The temperature sensor interface block measures the temperature optionally allowing the VCOM output voltage to be adjusted depending on the measured temperature.

The MAX25220/MAX25221/MAX25221B/MAX25221C are available in a TQFN package and operates in the -40°C to +125°C temperature range.

Applications

  • Central Information Displays
  • Infotainment Displays
  • Instrument Clusters

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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (2)

Documentation & Resources

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  • Data Sheets (1)
  • Technical Articles (4)
  • Videos (1)
    • Document Type

    Tools & Simulations

    Software Development

    MAX25220/1 EV Kit Software, 1.0.3
    ZIP
    MAX25220/1 EV Kit Software, 1.0.3
    ZIP

    Product Recommendations

    MAX25221 Companion Parts

    Recommended Related Parts

    Design Resources

    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    MAX25221ATJ/V+ Material Declaration Reliability Data 32-LFCSP-5X5X0.75
    MAX25221ATJ/V+T Material Declaration Reliability Data 32-LFCSP-5X5X0.75
    Wafer Fabrication Data

    PCN-PDN Information

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    Select Model for PCN Information
    • MAX25221ATJ/V+ Production

    Support & Discussions

    MAX25221 Contact ADI Technical Support »
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    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.

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