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ADI LTC4054ES5-4.2#TRPBF product image
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ADI LTC4054ES5-4.2#TRPBFRoHS

Manufacturer
ADI
MPN
LTC4054ES5-4.2#TRPBF
LCSC Part #
C462648
Packaging
TSOT-23-5
Customer #
Key Attributes
Standalone Linear Li-lon Battery Charger with Thermal Regulation in ThinSOT
Datasheetpdf iconADI LTC4054ES5-4.2#TRPBF
In-Stock: 25
25 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 7.6067$ 7.61
10+$ 6.6846$ 66.85
30+$ 5.7445$ 172.34
100+$ 5.2728$ 527.28
Standard Packaging2500/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Chargers
ManufacturerADI
PackagingTSOT-23-5
FeaturesConstant current charging;Constant voltage charging;Trickle charging;Automatic recharge;Charge termination;Programmable charging current;Soft-start;Under-voltage lockout
Voltage - Supply4.25V~6.5V
Quiescent Current25uA
Operating Temperature-40℃~+85℃
Type of BatteryLithium Battery
The Chip TypeCharging IC
Number of Cells1
Charge Current - Max800mA
Charging Saturation Voltage4.2V
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Introduction

AI Translation

The LTC 4054 is a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries. Its ThinSOT package and low external component count make the LTC4054 ideally suited for portable applications. Furthermore, the LTC4054 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 limit the die temperature during high power operation or high ambient temperature. The charge voltage is fixed at 4.2V, and the charge current can be programmed externally with a single resistor. The LTC4054 automatically terminates the 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 LTC4054 automatically enters a low current state, dropping the battery drain current to less than 2μA. The LTC4054 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 Up to 800mA
  • No MOSFET, Sense Resistor or Blocking Diode Required
  • Complete Linear Charger in ThinSOT Package for Single 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 Supply Current in Shutdown
  • 2.9V Trickle Charge Threshold (LTC4054)
  • Available Without Trickle Charge (LTC4054X)
  • Soft-Start Limits Inrush Current
  • Available in 5-Lead SOT-23 Package

Applications

AI Translation
  • Cellular Telephones
  • PDAs
  • MP3 Players
  • Charging Docks and Cradles
  • Bluetooth Applications