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Simplified Multichemistry SMBus Battery Charger

Multichemistry, SMBus™, Battery Charger Simplifies Construction of Smart Chargers with a Minimum Number of External Components

Product Details

Key Features

Parametric specs for Battery Chargers
Package/Pins TQFN/24
Budgetary
Price (See Notes)
0
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Simplified Block Diagram

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Parameters

Parametric specs for Battery Chargers
Package/Pins TQFN/24
Budgetary
Price (See Notes)
0

Key Features

  • Over 2A Charge Current
  • Intel SMBus 2-Wire Serial Interface
  • ±0.6% Charge Voltage Accuracy
  • 11-Bit Charge Voltage Resolution
  • 6-Bit Charge Current Resolution
  • Adjustable Switching Frequency
  • +8V to +28V Input Voltage Range
  • Cycle-By-Cycle Current Limit
  • Charges Any Battery Chemistry (Li+, NiCd, NiMH, Lead Acid, etc.)
  • Small, 24-Pin TQFN
  • Applications/Uses

    • Digital Cameras
    • Handset Car Kits
    • Notebook Computers
    • PDAs and Tablet Computers
    • Portable Equipment with Rechargeable Batteries

    Description

    The MAX8713 multichemistry battery charger simplifies construction of smart chargers with a minimum number of external components. It uses the Intel System Management Bus (SMBus™) to control the charge voltage and charge current. High efficiency is achieved through the use of a constant off-time step-down topology with synchronous rectification.

    The MAX8713 charges one to four lithium-ion (Li+) cells in series and delivers over 2A charge current—scalable with the sense resistor. The MAX8713 drives n-channel MOSFETs for improved efficiency and reduced cost. A low-offset charge-current-sense amplifier provides high accuracy charge current with small sense resistors.

    The MAX8713 is available in a space-saving 24-pin, 4mm x 4mm TQFN package and operates over the extended (-40°C to +85°C) temperature range. An evaluation kit is available to reduce design time.

    Simplified Block Diagram

    MAX8713: Typical Operating Circuit MAX8713: Typical Operating Circuit Zoom icon

    Technical Docs

    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 .