Datasheet Linear Technology LTC4100

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Design Notes

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  Smart Battery Charger Reduces Circuit Size &mdash DN1005
  PDF, 63 Kb, File published: Jun 1, 2005
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  advertisement Smart Battery Charger Reduces Circuit Size – Design Note 1005
  Mark Gurries
  LTCВ®4100 Single Smart Battery Charger
  The predominant design challenge in most single-battery
  applications, such as tablet PCs and portable instrumentation, is how to save space. Typically such applications
  require low power from the battery. With this in mind,
  every feature of the LTC4100 Smart Battery charger exists
  to reduce board real estate and profile requirements. The
  LTC4100 is a Level 2 (slave) Smart Battery charger that is
  compliant with both Smart Battery Charger V1.1 and
  SMBus V1.1 standards.
  Figure 1 shows a typical compact single battery charger.
  This circuit can charge batteries with up to 4A and switch
  continuously down to zero load current. This circuit takes
  advantage of the ceramic capacitors’ space saving features while avoiding any audible noise. The high 300kHz
  switching frequency allows the use of a small low cost
  10ВµH inductor.
  DCIN
  6V TO 32V , LTC and LT are registered trademarks of Linear Technology Corporation.
  *U.S. patent number 6650174 **U.S. patent number 5723970 0.1ВµF 13.7k
  3V
  TO 5.5V Input voltage range is 6V to 32V while the output charge
  voltage range is from 6.4V to 26V. A 10-bit current DAC …

Articles

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  Smart Batteries: Not Just for Notebooks Anymore &mdash LT Journal
  PDF, 370 Kb, File published: Mar 25, 2005
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  LINEAR TECHNOLOGY MARCH 2005 COVER ARTICLE
  Smart Batteries: Not Just for
  Notebooks Anymore . 1
  Mark Gurries Issue Highlights . 2
  LTC in the News… . 2
  DESIGN FEATURES
  Dual Monolithic Ideal Diodes
  Provide a Single-Chip Power
  Management Solution . 7
  Andy Bishop Simplify PoE Implementation
  with Complete PD Interface and
  Integrated Switching Regulator
  . 11
  Kirk Su High Accuracy Clock
  up to 170MHz in a SOT-23 . 14
  Albert Huntington Simple, Precise Instrumentation
  Amplifier Features Digitally
  Programmable Gains from 1 to 4096
  . 16
  Michael Kultgen Flexible Power Supply
  Sequencing and Monitoring . 20
  Jeff Heath and Akin Kestelli Smart Batteries: Not Just
  for Notebooks Anymore …

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Manufacturer's Classification

• Power Management > Battery Management > Battery Charger IC > Switching Battery Chargers | SMBus/I2C/SPI Controlled Battery Chargers