LTC1479 Datasheet - Linear Technology

DESCRIPTION
The LTC ®1479 is the “heart” of a total power management solution for single and dual battery notebook computers and other portable equipment. The LTC1479 directs power from up to two battery packs and a DC power source to the input of the main system switching regulator. It works in concert with related LTC power management products (e.g. LTC1435, LT ®1511, etc.) to create a total system solution; starting from the batteries and the DC power source, and ending at the input of each of the computer’s complex loads. A system-provided power management µP monitors and actively directs the LTC1479.

FEATURES
■ Complete Power Path Management for Two Batteries, DC Power Source, Charger and Backup
■ Compatible with Li-Ion, NiCd, NiMH and Lead-Acid Battery Chemistries
■ “3-Diode” Mode Ensures Powers is Available under “Cold Start” Conditions
■ All N-Channel Switching Reduces Power Losses
■ Capacitor and Battery Inrush Current Limited
■ “Seamless” Switching Between Power Sources
■ Independent Charging and Monitoring of Two Battery Packs
■ New, Small Footprint, 36-Lead SSOP Package

APPLICATIONS
■ Notebook Computer Power Management
■ Portable Instruments
■ Handheld Terminals
■ Portable Medical Equipment
■ Portable Industrial Control Equipment