ADILTC1732EMS-8.4#PBF
Overview
The LTC1732EMS-8.4#PBF is a complete 2-cell Li-Ion battery charger controller providing a constant-current/constant-voltage charge profile for 8.4V battery packs. It features an integrated charge termination timer, automatic recharge, and a low-dropout architecture that allows operation from a 9V to 12V supply. The device includes status pins for wall adapter detection and charge current monitoring, making it a compact solution for standalone charging applications.
Why Choose This Part
The IC provides a high-accuracy 8.4V preset voltage with +/-1% tolerance and includes built-in trickle charging for deeply discharged cells. Its programmable charge current and termination timer allow engineers to customize the charging profile to specific battery capacities while maintaining a low 10uA sleep current.
Applications
Key Specifications
Getting Started
Designers should calculate the charge current resistor based on the desired constant-current level and select a timing capacitor to set the maximum charge duration. Ensure proper thermal management for the MSOP-10 package and use a low-ESR bypass capacitor on the VCC pin for stable operation near the 12V maximum rating.
