MAX20084B

PRODUCTION

Automotive Dual-Antenna Power Supply with I2C Serial Interface

Dual-Antenna Phantom Supply Provides Diagnostics for Multiband Antenna Systems Programmable Through I2C

Data Sheet (Rev. 0) Product Selection Table
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Overview

  • Wide Input Voltage Range: 4.5V to 28V (40V Load Dump Tolerant)
  • High Integration
    • Complete 2-Channel Solution with Linear Regulators and Diagnostics
    • I2C Control for Minimum Parts Count
  • Complete and Flexible Control
    • Regulator Output Voltage
    • Regulator Current Limit
    • Regulator Overcurrent Level
    • Individual Disable/Enable
  • Detailed Diagnostics
    • Output Current
    • Short-to-Ground/Battery
    • Overtemperature Warning
    • Thermal Shutdown
  • Compact, 4mm x 4mm, 16 TQFN, Optional Side-Wettable Package

The MAX20084B is a dual-antenna power supply with an I2C interface for diagnostics and control. The dual 270mA antenna supplies are linear regulators whose output voltage is set individually through I2C. Additionally, internal registers are used to set the current limit, open-load threshold, and other parameters.

An internal 8-bit ADC allows the channel current to be measured. The AOUT analog output can also be used with an external ADC to measure the output current on either channel.

The MAX20084B is available in two variants: the MAX20084BATEA/VY+ with both channels turned off by default after power-up, and the MAX20084BATEB/VY+ with channel 1 turned on by default after power-up.

The MAX20084B is available in a 4mm x 4mm, side-wettable TQFN package and operates over the -40°C to +125°C temperature range.

Applications

  • Automotive Camera and Sensor Power
  • Automotive Microphone Power
  • Remote LNA Phantom Power
MAX20084B
Automotive Dual-Antenna Power Supply with I2C Serial Interface
MAX20084B: Simplified Block Diagram
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Documentation

Data Sheet 1

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Software Resources

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Evaluation Kits

MAX20084EVKIT

Evaluation Kit for the MAX20084/MAX20084B

Buy Now View Details

Features and Benefits

  • 4.5V to 28V Wide Input Voltage Range (40V Load-Dump Tolerant)
  • 2-Channel LDO/Switch
    • Adjustable Output Voltage using I2C
  • Output Current Monitoring
    • Analog Output
    • I2C ADC
  • Open-Drain Fault Indicator
  • High-Voltage Enable Control Input (EN)
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX20084 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB used to evaluate MAX20084/MAX20084B automotive dual-antenna power supply with I2C interface. Each channel can be independently configured to operate either as a switch or as an LDO with regulated adjustable output voltage using I2C. The EV kit demonstrates the device’s features: adjustable current limit, adjustable overcurrent detection, adjustable open-load detection, and adjustable warning-current detection. The output current of each channel can be monitored using I2C or by measuring an analog output voltage. The EV kit exposes an I2C interface that can operate in conjunction with either the MINIQUSB+ adapter or a third-party I2C master, such as a general-purpose microcontroller. The EV kit also includes Windows-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the IC. The EV system includes both the EV kit and the MINIQUSB+ adapter board.

Applications

  • Automotive Camera and Sensor Power
  • Automotive Microphone Power
  • Remote LNA Phantom Power

MAX20084EVSYS

Evaluation Kit for the MAX20084/MAX20084B

Buy Now View Details

Features and Benefits

  • 4.5V to 28V Wide Input Voltage Range (40V Load-Dump Tolerant)
  • 2-Channel LDO/Switch
    • Adjustable Output Voltage using I2C
  • Output Current Monitoring
    • Analog Output
    • I2C ADC
  • Open-Drain Fault Indicator
  • High-Voltage Enable Control Input (EN)
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX20084 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB used to evaluate MAX20084/MAX20084B automotive dual-antenna power supply with I2C interface. Each channel can be independently configured to operate either as a switch or as an LDO with regulated adjustable output voltage using I2C. The EV kit demonstrates the device’s features: adjustable current limit, adjustable overcurrent detection, adjustable open-load detection, and adjustable warning-current detection. The output current of each channel can be monitored using I2C or by measuring an analog output voltage. The EV kit exposes an I2C interface that can operate in conjunction with either the MINIQUSB+ adapter or a third-party I2C master, such as a general-purpose microcontroller. The EV kit also includes Windows-compatible software that provides a simple graphical user interface (GUI) for exercising the features of the IC. The EV system includes both the EV kit and the MINIQUSB+ adapter board.

Applications

  • Automotive Camera and Sensor Power
  • Automotive Microphone Power
  • Remote LNA Phantom Power
MAX20084EVKIT
Evaluation Kit for the MAX20084/MAX20084B
MAX20084EVSYS
Evaluation Kit for the MAX20084/MAX20084B

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