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ADI LTC4054LES5-4.2#TRPBF product image
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ADI LTC4054LES5-4.2#TRPBFRoHS

Manufacturer
ADI
MPN
LTC4054LES5-4.2#TRPBF
LCSC Part #
C462691
Packaging
TSOT-23-5
Customer #
Key Attributes
150mA Standalone Linear Li-lon Battery Charger in ThinSOT
Datasheetpdf iconADI LTC4054LES5-4.2#TRPBF
In-Stock: 33
33 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 7.3376$ 7.34
10+$ 6.364$ 63.64
30+$ 5.7718$ 173.15
100+$ 5.2736$ 527.36
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Chargers ICs
ManufacturerADI
PackagingTSOT-23-5
End-Off Voltage-
Voltage - Supply4.25V~6.5V
Interface-
Operating Temperature-40℃~+85℃
Supply Current (Iq)200uA
Battery Temperature DetectionNot supported
0V Battery Charge-
Type of BatteryLithium Battery
The Chip TypeCharging IC
Number of Cells1
Charge Current - Max157.5mA
Charging Saturation Voltage4.2V
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

The LTC4054L is a complete, constant-current/constant-voltage linear charger for single cell lithium-ion batteries. Its small size and ability to regulate low charge currents make the LTC4054L especially well-suited for portable applications using low capacity rechargeable lithium-ion coin cells. Furthermore, the LTC4054L is specifically designed to work within USB power specifications. No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture. Thermal feedback regulates the charge current to eliminate thermal overdesign. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The LTC4054L automatically terminates a charge cycle when the charge current drops to 1/10th the programmed value after the final float voltage is reached. When the input supply (wall adapter or USB supply) is removed, the LTC4054L automatically enters a low current state, dropping the battery drain current to less than 2μA. The LTC4054L can be put into shutdown mode, reducing the supply current to 25μA. Other features include charge current monitor, undervoltage lockout, automatic recharge and a status pin to indicate charge termination and the presence of an input voltage.

Features

AI Translation
  • Programmable Charge Current Range: 10mA to 150mA
  • No External MOSFET, Sense Resistor or Blocking Diode Required
  • Complete Linear Charger in ThinSOT Package for Single Cell/Coin Cell Lithium-Ion Batteries
  • Constant-Current/Constant-Voltage Operation with Thermal Regulation to Maximize Charge Rate without Risk of Overheating
  • Charges Single Cell Li-Ion Batteries Directly from USB Port
  • Preset 4.2V Charge Voltage with ±1% Accuracy
  • Charge Current Monitor Output for Gas Gauging
  • Automatic Recharge
  • Charge Status Output Pin
  • C/10 Charge Termination
  • 25µA Max Supply Current in Shutdown Mode
  • 2.9V Trickle Charge Threshold
  • Soft-Start Limits Inrush Current
  • Available in a 5-Lead Low Profile (1mm) SOT-23 Package

Applications

AI Translation
  • Charger for Li-Ion Coin Cell Batteries
  • Portable MP3 Players, Wireless Headsets
  • Bluetooth Applications
  • Multifunction Wristwatches