DESCRIPTION
The LTC®1729 series is a family of smart termination controllers for lithium-ion battery chargers. These ICs provide trickle charge preconditioning, temperature charge qualification, time or charge current termination, automatic charger and battery detection and status output.

FEATURES
■ Trickle Charge Preconditioning If Cell <2.7V
■ Charging Enabled When 0°C < T < 50°C
■ Built-In Termination: 3-Hour Time-Out
■ C/10 Detection with Status Indicator
■ Automatic Charger Present Detection
■ Automatic Battery Present Detection
■ 1- or 2-Cell, 4.1V/Cell or 4.2V/Cell Options
■ Precision Internal 0.2% Voltage Feedback Divider
■ Compatible with LT1505/LT1510/LT1511/LT1512/LT1513/LT1769
■ Small Footprint/Low Profile

APPLICATIONS
■ Cellular Phones
■ PDAs
■ Cradle Chargers
■ Camcorders