Overview

Features and Benefits

  • Charges Single-Cell Li-Ion Batteries Directly from USB Port
  • Thermal Regulation Maximizes Charging Rate without Risk of Overheating*
  • Programmable Charge Current with ±7% Accuracy
  • Low Dropout Operation
  • No External MOSFET, Sense Resistor or Blocking Diode Required
  • Programmable Charge Termination Timer
  • Preset Charge Voltage with ±1% Accuracy
  • C/10 Charge Current Detection Output
  • AC Present Logic Output
  • 25µA Supply Current in Shutdown Mode
  • Automatic Recharge
  • Tiny Thermally Enhanced 10-Pin MSOP Package
  • Charge Current Monitor Useful for Gas Gauging*
  • Thermistor Input for Temperature Qualified Charging

Product Details

The LTC4053 is a standalone linear charger for lithium-ion batteries that can be powered directly from a USB port. The IC contains an on-chip power MOSFET and eliminates the need for an external sense resistor and blocking diode. Thermal regulation automatically adjusts charge current to limit die temperature during high power or high ambient temperature conditions. This feature protects the end product and the LTC4053 from thermal stress while the IC charges the battery at maximum rate without interruption.

The charge current and charge time can be set externally with a single resistor and capacitor, respectively. When the input supply (wall adapter or USB supply) is removed, the LTC4053 automatically enters a low current sleep mode, dropping the battery drain current to less than 5µA.

The LTC4053 also includes NTC temperature sensing, C/10 detection circuitry, AC present logic, low battery charge conditioning (trickle charging) and shutdown (25µA supply current).

The LTC4053 is available in a 10-pin thermally enhanced MSOP package.

Applications

  • Cellular Telephones
  • Handheld Computers
  • Charging Docks and Cradles
  • MP3 Players
  • Digital Cameras

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (2)

Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTspice

Models for the following parts are available in LTspice:

ltc4053-4
LTC4053-4.2

Product Recommendations

LTC4053-4.2 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

Discussions

LTC4053-4.2 Didn't find what you were looking for? Ask the Analog community »

Sample & Buy

Sample & Buy functionality exists in desktop site
Back
Check Inventory


The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Price Table Help

 

Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.