DESCRIPTION

The LTC® 4060 is a complete fast charging system for NiMH or NiCd batteries. Just a few external components are needed to design a standalone linear charging system.

FEATURES

■ Complete Fast Charger Controller for Single, 2-, 3- or 4-Series Cell NiMH/NiCd Batteries

■ No Firmware or Microcontroller Required

■ Termination by –∆V, Maximum Voltage or Maximum Time

■ No Sense Resistor or Blocking Diode Required

■ Automatic Recharge Keeps Batteries Charged

■ Programmable Fast Charge Current: 0.4A to 2A

■ Accurate Charge Current: ±5% at 2A

■ Fast Charge Current Programmable Beyond 2A with External Sense Resistor

■ Automatic Detection of Battery

■ Precharge for Heavily Discharged Batteries

■ Optional Temperature Qualified Charging

■ Charge and AC Present Status Outputs Can Drive LED

■ Automatic Sleep Mode with Input Supply Removal

■ Negligible Battery Drain in Sleep Mode: <1µA

■ Manual Shutdown

■ Input Supply Range: 4.5V to 10V

■ Available in 16-Lead DFN and TSSOP Packages

APPLICATIONS

■ Portable Computers, Cellular Phones and PDAs

■ Medical Equipment

■ Charging Docks and Cradles

■ Portable Consumer Electronics