LTC4053-4.2

PRODUCTION

USB Compatible Lithium-Ion Battery Charger with Thermal Regulation

Part Models: 4
1ku List Price: Starting From $2.54

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Overview

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

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

Part Models: 4
1ku List Price: Starting From $2.54

Documentation

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. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC4053EDD-4.2#PBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4053EDD-4.2#TRPBF	10-Lead DFN (3mm x 3mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4053EMSE-4.2#PBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC4053EMSE-4.2#TRPBF	10-Lead MSOP w/ EP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Oct 11, 2022 - 22_0244 Epoxy Change from Henkel 8290 to 8290A for MSOP Package
		PCN22_0244_Form Material_Report Qualification Results Summary Delta Qualification Matrix
LTC4053EMSE-4.2#PBF	PRODUCTION
LTC4053EMSE-4.2#TRPBF	PRODUCTION
Feb 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC
		PCN20_0130_Form Material_Report
LTC4053EMSE-4.2#PBF	PRODUCTION
LTC4053EMSE-4.2#TRPBF	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Protection Switches & Controllers 1
LTC4361-1 LTC4361-2		Overvoltage/Overcurrent Protection Controller

Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LTC4053-4.2

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.