
Linear Technology
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