Lithium Battery Power Protection Solution

Lithium-ion batteries, with excellent characteristics, are widely used in phones, camcorders, laptops, cordless phones, power tools, remote/electric toys, cameras, and other portable devices.

01. Battery Features

1. Higher weight/volume energy density.

2. High voltage: 3.6 V per cell (equals 3 NiCd/NiMH cells in series).

3. Low self-discharge for long storage.

4. No memory effect—no discharge needed before charging.

5. Long life: >500 charge/discharge cycles under normal conditions.

6. Fast charging: 0.5–1C current, 1–2 hours.

7. Parallel connection flexibility.

8. Eco-friendly: No cadmium, lead, mercury—advanced green battery.

02. Operating Characteristics

• Principle: Linear CC-CV charging IC auto-adjusts current based on adapter voltage for safe, efficient charging.

• Charging Modes: CC phase limits current to preset until termination voltage; CV phase holds voltage until current drops low.

• Overcharge Protection: IC stops charging when full to prevent damage.

• Temperature Protection: Monitors battery temp; reduces current if too high.

03. Recommended Chips

DP4054, DP4056, DP4057—all with full technical support and samples available for testing.