TI Rechargealbe Batteries and ...

Rechargealbe Batteries and their chargersRechargeable Batteries and Their Optimized Chargers

Texas Instruments

Battery Management Challenges


Safety Battery Run-Time Capacity Power conversion efficiency Battery charging Gas Gauge Accuracy

Longer Battery Life



Smaller Size & Weight


Size and Weight

Agenda
Rechargeable Battery Characteristics and Charging Requirements Power Path Management Battery Charger 3MHz switching mode USB battery charger Multi-cell LiFePO4 and Li-Ion switching mode battery charger Summary

Rechargeable Battery Characteristics and Charging Requirements

Battery Chemistries
Primary battery: Non-rechargeable (Alkaline) Secondary battery: Rechargeable NiCd: 1.0V to 1.5V NiMH: 1.0V to 1.5V Li-Ion


LiCoO2 - Coke: 3.0V to 4.1V LiCoO2 - Graphite: 3.0V to 4.2V LiMnO4 - Graphite: 3.0V to