MAX8713

Simplified Multichemistry SMBus Battery Charger

Multichemistry, SMBus™, Battery Charger Simplifies Construction of Smart Chargers with a Minimum Number of External Components
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Status Explanations for product status codes

Active: In Production.

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.

Data Sheet

Download this datasheet in PDF formatDownload Rev 0 (PDF, 1.3MB)
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An evaluation board is available: MAX8713EVKIT

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
   

Key Specifications:

Battery Chargers
Part Number Lithium Ion Cells Protected VIN
(V)
Charging VIN
(V)
Charge Rate Set by Max. ICHG
(A)
Charge Termination Charge Regulation Oper. Temp.
(°C)
max max
MAX8713 
1
2
3
4
28 28 I2C/SMBus 2
Current Limit
Max. Voltage
Smart Battery Control
Switchmode -40 to +85
See All Battery Chargers (76)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.



Diagram

MAX8713: Typical Operating Circuit
Typical Operating Circuit

More Information

New Product Press Release   2004-11-18 ]

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Information Index

Document Ref.: 19-3498 Rev 0; 2004-11-18
This page last modified: 2009-10-06