DESCRIPTION
The LT ®1620 simplifies the design of high performance, controlled current battery charging circuits when used in conjunction with a current mode PWM controller IC.

FEATURES
■ Accurate Output Current Programming
■ Usable in Charging Applications Up to 32V Output
■ Programmable Load Current Monitor for End-ofCharging-Cycle Notification (16-Pin Version)
■ Dual Function IC (LT1621) Allows Convenient Integration of Load and Input Current Sensing
■ Level-Shifted Current Sense Output for Current Mode PWM Controllers
■ Can be Used for NiCd, NiMH, Lead-Acid and LithiumIon Battery Charging
■ Greater than 96% Efficiency Possible in Charger Applications
■ High Output Currents Possible: > 10A Easily Obtained

APPLICATIONS
■ High Current Battery Chargers
■ High Output Voltage DC/DC Converters
■ Constant Current Sources
■ Overcurrent Fault Protectors