LTC4078/LTC4078X- Dual Input Li-Ion Battery Charger with Overvoltage Protection

Features
  • 22V Maximum Voltage for Wall Adapter and USB Inputs
  • Charge Single-Cell Li-Ion Batteries from Wall Adapter and USB Inputs
  • Automatic Input Power Detection and Selection
  • Charge Current Programmable Up to 950mA from Wall Adapter Input
  • Overvoltage Lockout for Wall Adapter and USB Inpu
  • Battery Detection Input Disables Charger When N Battery is Present
  • No External MOSFET, Sense Resistor or Blocking Diode Needed
  • Thermal Regulation Maximizes Charge Rate Without Risk of Overheating
  • Preset Charge Voltage with ±0.6% Accuracy
  • Programmable Charge Current Termination
  • 40µA USB Suspend Current in Shutdown
  • Charge Status Output
  • Automatic Recharge
  • Available Without Trickle Charge (LTC4078X)
  • Available in a Thermally Enhanced, Low Profile (0.75mm) 10-Lead (3mm x 3mm) DFN Package
Typical Application

Applications
  • Cellular Telephones
  • Handheld Computers
  • Portable MP3 Players
  • Digital Cameras
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC4078EDD-2#PBF3x3 DFN-10E$2.86$2.00
LTC4078EDD-2#TRPBF3x3 DFN-10E$2.06
LTC4078EDD#PBF3x3 DFN-10E$2.86$2.00
LTC4078EDD#TRPBF3x3 DFN-10E$2.06
LTC4078XEDD#PBF3x3 DFN-10E$2.86$2.00
LTC4078XEDD#TRPBF3x3 DFN-10E$2.06
Datasheet
Reliability Data
Related Product
LTC4078/LTC4078X - Dual Input Li-Ion Battery Charger with Overvoltage Protection
R540 - Reliability Data
LTC4078 Footprints and Symbols