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Automotive Dual-Antenna Power Supply with I2C Serial Interface

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

产品详情

主要特征

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主要特征

  • 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

应用/用途

  • 车载摄像机和传感器供电
  • 车载麦克风电源
  • 远端LNA隐含供电

描述

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.

简化框图

MAX20084B: Simplified Block Diagram MAX20084B: Simplified Block Diagram Zoom icon

Technical Docs

支持和培训

在Maxim的知识库中搜索技术问题的答案

过滤搜索

Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心