New Product Introduction

Maxim MAX20047 dual 3A USB DCP charger

The MAX20047 is an automotive-grade, low-cost, small-footprint dual-port charger IC designed for automotive charging applications

Maxim MAX20047 product image

The MAX20047 is an automotive-grade, low-cost, small-footprint dual-port charger IC designed for automotive charging applications. It combines a fully synchronous 6 A step-down buck converter with integrated high-side and low-side FETs capable of operating with input voltages from 3.5 V to 36 V and delivering 5.2 V output voltage. The IC features integrated iPod®/iPhone® 1.0A, and iPad® 2.1A dedicated charging modes.

The IC delivers up to 3 A of charging current with 93% efficiency per port through integrated switches with programmable current limit and thermal foldback control.

 

Key features

  • Accurate SRC_DMOS Current Limiting with Minimal Voltage Drop
  • Thermal Regulation and Thermal Shutdown
  • Dual Autonomous Battery-Charging Ports with Portable Device Detection
  • Short-to-Battery and Short-to-Ground Protection on Protected SRC_DMOS Output

 

Additional features

  • Operating VIN Range of 3.5 V to 36 V
  • 40 V Load-Dump Protection
  • Synchronous DC-DC Converter with Integrated FETs
  • 93% Charge Efficiency at 3 A Charging
  • 0.4 MHz to 2.2 MHz Programmable Switching Frequency by External Pin Settings
  • Spread-Spectrum Operation
  • Fixed 8 ms Internal Soft-Start
  • 5.20 V Output
  • 99% Duty-Cycle Operation with Low Dropout
  • ±2% Output-Voltage Accuracy
  • Input System Overvoltage and Short-Circuit Protection
  • Accurate SRC_DMOS Current Limiting with Minimal Voltage Drop
    • Low RON 15 mΩ Dual USB Power Switches
    • Adjustable SRC_DMOS Current Limit by External Pin Settings
    • Integrated Current Sensing
  • Thermal Regulation and Thermal Shutdown
  • Dual Autonomous Battery-Charging Ports with Portable Device Detection
    • Integrated Apple® 2.4 A, 2.1 A, 1.0 A Detection
    • Integrated Samsung® Detection
    • Integrated DCP Detection
  • Robust for the Automotive EnvironmentShort-to-Battery and Short-to-Ground Protection on Protected SRC_DMOS Output
    • Short-to-Battery and Short-to-PV Protection on Protected HVDP1, HVDM1, HVDP2, and HVDM2 Inputs
    • Tested to ISO 10605 and IEC 61000-4-2 ESD Standards
    • 20-Pin (5.0 x 3.5 mm) FC2-QFN Package
    • -40 °C to +125 °C Operating Temperature Range
    • AEC-Q100 Qualified

 

Applications

  • Automotive Cigarette Lighter Adapters
  • Power Supply for Linear Chargers
  • USB Dedicated Charging Ports (DCP)

 

Available tools

MAX20047EVKIT
Evaluation Kit for the MAX20047

Description

The MAX20047 evaluation kit (EV kit) demonstrates the MAX20047 IC in an integrated and small package format.

The EV kit is configured for 400 kHz operation, with a 3 A (min) per-port current limit. There are two Type-A receptacles that can be used to demonstrate the charger emulation capabilities.

Key Features

  • Configurable Charge-Detection ModesUSB-IF BC 1.2 Dedicated Charging Port (DCP)
  • Apple® 2.4 A, 2.1 A, 1.0 A, and Samsung® Termination Resistors
  • Integrated, High-Efficiency, DC-DC Converter (440 kHz to 2.2 MHz)
  • Proven PCB Layout
  • Fully Assembled and Tested

Applications/Uses

  • Automotive Cigarette Lighter Adapters
  • Power Supply for Linear Chargers
  • USB Dedicated Charging Ports (DCP)

Maxim MAX20047 Dual 3A USB DCP Charger | EBV Elektronik

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