LTC4007
FEATURES
DESCRIPTION n plete Charger Controller for 3- or 4-Cell Lithium-Ion Batteries n High Conversion Efficiency: Up to 96% n Output Currents Exceeding 4A n ±0.8% Charging Voltage Accuracy n Built-In Charge Termination for Li-Ion Batteries n AC Adapter Current Limiting Maximizes Charge Rate- n Thermistor Input for Temperature Qualified Charging n Wide Input Voltage Range: 6V to 28V n 0.5V Dropout Voltage; Maximum Duty Cycle: 98% n Programmable Charge Current: ±4% Accuracy n Indicator Outputs for Charging, C/10 Current Detection,
AC Adapter Present, Low Battery, Input Current Limiting and Faults n Charging Current Monitor Output n Available in a 24-Pin Narrow SSOP Package
APPLICATIONS n Notebook puters n Portable Instruments n Battery-Backup Systems n Standalone Li-Ion Chargers
The LTC®4007 is a plete constant-current/constant-voltage charger controller for 3- or 4-cell lithium-ion batteries. The PWM controller uses a synchronous, quasi-constant frequency,...
