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Evaluation Kit for the MAX20459

Product Details

The MAX20459 evaluation kit (EV kit) demonstrates the MAX20459 automotive high-current, high-efficiency, stepdown DC-DC converter with integrated USB Type-C DFP controller and host-charger-adapter emulation, which provides ESD and short-to-battery protection.

The MAX20459 features integrated host-charger portdetection circuitry adhering to the USB Type-C specification, the USB-IF BC1.2 battery charging specification, Apple iPod/iPhone/iPad® and Samsung® charge-detection termination resistors, and Chinese Telecommunication Industry Standard YD/T 1591-2009.

The MAX20459 step-down, synchronous, DC-DC converter operates from a voltage of up to 28V continuous and protects against load-dump transients up to 40V. The converter is programmable for frequencies from 275kHz to 2.2MHz and can deliver 3A continuously.

The MAX20459 integrates thermal management in a twostage approach to limit maximum die temperature. In the first stage, the standalone variant reduces the Type-C handshake and DC current limit by one step when die temperature exceeds 130°C (typ). The second stage triggers DC-DC shutdown if the die temperature continues rising and exceeds 165°C (typ).

The EV kit is populated with a standalone enabled MAX20459ATJC/V+ that is configured by pull-down resistors. The I2C variant (MAX20459ATJA/V+) allows for flexible configuration, detailed fault diagnostics, and access to the on-chip ADC that reports die temperature, output voltage, and output current. The I2C features are easily accessed by using the Maxim MINIQUSB module along with the provided example GUI.

Key Features

  • Configurable Charge-Detection Modes
    • USB-C 3.0A, 1.5A, 0.5A
    • USB-IF BC1.2 DCP
    • Apple 2.4A, 1.0A
    • Samsung 2.0A
    • China YD/T 1591-2009 Charging Specification
  • Automatic USB Voltage Adjustment by Integrated DC-DC Converter (275kHz - 2.2MHz)
  • Proven PCB Layout
  • Fully Assembled and Tested

Applications/Uses

Technical Docs

Data Sheet Evaluation Kit for the MAX20459 May 29, 2020

Design & Development

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SIMULATION MODELS

MAX20459EVKIT ODB Files

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Support & Training

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Parameters

Key Features

  • Configurable Charge-Detection Modes
    • USB-C 3.0A, 1.5A, 0.5A
    • USB-IF BC1.2 DCP
    • Apple 2.4A, 1.0A
    • Samsung 2.0A
    • China YD/T 1591-2009 Charging Specification
  • Automatic USB Voltage Adjustment by Integrated DC-DC Converter (275kHz - 2.2MHz)
  • Proven PCB Layout
  • Fully Assembled and Tested

Applications/Uses

Description

The MAX20459 evaluation kit (EV kit) demonstrates the MAX20459 automotive high-current, high-efficiency, stepdown DC-DC converter with integrated USB Type-C DFP controller and host-charger-adapter emulation, which provides ESD and short-to-battery protection.

The MAX20459 features integrated host-charger portdetection circuitry adhering to the USB Type-C specification, the USB-IF BC1.2 battery charging specification, Apple iPod/iPhone/iPad® and Samsung® charge-detection termination resistors, and Chinese Telecommunication Industry Standard YD/T 1591-2009.

The MAX20459 step-down, synchronous, DC-DC converter operates from a voltage of up to 28V continuous and protects against load-dump transients up to 40V. The converter is programmable for frequencies from 275kHz to 2.2MHz and can deliver 3A continuously.

The MAX20459 integrates thermal management in a twostage approach to limit maximum die temperature. In the first stage, the standalone variant reduces the Type-C handshake and DC current limit by one step when die temperature exceeds 130°C (typ). The second stage triggers DC-DC shutdown if the die temperature continues rising and exceeds 165°C (typ).

The EV kit is populated with a standalone enabled MAX20459ATJC/V+ that is configured by pull-down resistors. The I2C variant (MAX20459ATJA/V+) allows for flexible configuration, detailed fault diagnostics, and access to the on-chip ADC that reports die temperature, output voltage, and output current. The I2C features are easily accessed by using the Maxim MINIQUSB module along with the provided example GUI.

Technical Docs

Data Sheet Evaluation Kit for the MAX20459 May 29, 2020

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal