LT1571 - Constant-Current/Constant-Voltage Battery Charger with Preset Voltage and Termination Flag

Features
  • Fast Charging of Li-Ion, NiMH and NiCd Batteries
  • Simple Charge Current Programming Requires Only One Low Cost, 1/32W Resistor
  • High Efficiency Charger with Up to 1.5A Charge Current
  • Precision 0.6% Internal Voltage Reference
  • Preset Battery Voltages: 4.1V, 4.2V, 8.2V, 8.4V
  • 500kHz or 200kHz Switching Frequency Minimizes Charger Size
  • Low Reverse Battery Drain Current: 5µA
  • Flag Indicates Li-Ion Charge Completion
  • 5% Typical Charge Current Accuracy
  • Low Shutdown Current
  • LT1571-1: 200kHz, Adjustable Voltage
  • LT1571-2: 200kHz, Fixed 8.2V or 8.4V
  • LT1571-5: 500kHz, Fixed 4.1V or 4.2V
Typical Application
Applications
  • Cellular Phones, PDAs, Notebook Computers, Portable Instruments
  • Cradle Chargers for Li-Ion, NiCd, NiMH and Lead-Acid Rechargeable Batteries
Packaging


Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT1571EGN-1#PBFSSOP-28E$5.00$4.25
LT1571EGN-1#TRPBFSSOP-28E$4.31
LT1571EGN-2#PBFSSOP-28E$5.00$4.25
LT1571EGN-2#TRPBFSSOP-28E$4.31
LT1571EGN-5#PBFSSOP-16E$4.85$3.95
LT1571EGN-5#TRPBFSSOP-16E$4.01
Demo Boards
Part NumberDescriptionPrice
DC281ALT1571CGN-5 | Li-Ion Battery Charger, Jmpr Sel. 4.1 or 4.2VContact Factory
DC288A-ALT1571EGN-2 | Li-Ion Battery Charger, 12V to 25V Input, 8.2V or 8.4Vout @ 1AContact Factory
DC288A-BLT1571EGN-1 | Li-Ion Battery Charger, 15.6V to 25V Input, 12.6V or Adj. Output @ 1AContact Factory
Datasheet
Reliability Data
Related Product
LT1571 - Constant-Current/Constant-Voltage Battery Charger with Preset Voltage and Termination Flag
LT1571 - 具有预置电压和充满指示功能的恒流/恒压电池充电器
LT1571 Package Drawing LT1571
LT1571 Package Drawing LT1571
R324 Reliability Data
LT1571 Footprints and Symbols