The TP4056 is a high-performance single-cell lithium-ion battery charging IC from the “Other Series,” designed for safe, efficient, and reliable constant-current/constant-voltage (CC/CV) charging in portable electronic devices. Built using advanced linear charging control technology, it provides accurate charge regulation, strong thermal stability, and enhanced battery protection, making it ideal for modern compact power management systems.
Operating from a 4.5V to 8V input supply, the TP4056 delivers optimized charging performance for 3.7V Li-ion and Li-polymer batteries with a precise 4.2V termination voltage. Compared to lower-voltage charging IC solutions, this wider input range improves system compatibility with USB power sources, adapters, and embedded charging modules, ensuring stable and flexible design integration.
The device supports up to 1A programmable charge current, featuring automatic charge termination, trickle charging for deeply discharged cells, and built-in thermal regulation. These integrated safety functions help protect the battery from overcharging, overheating, and excessive current conditions, ensuring long-term reliability and safe operation.
The TP4056 is widely used in portable and rechargeable electronic systems where efficient battery charging and compact design are essential. Its linear architecture simplifies circuit design, reduces external components, and ensures low noise operation during charging cycles.
Available in SOP8 package, the TP4056 offers easy PCB integration and is ideal for compact and cost-effective lithium battery charging solutions.
Key Features & Applications (Combined)
- Single-cell Li-ion/Li-Po battery charger IC
- CC/CV charging control with 4.2V regulation
- Input voltage range: 4.5V–8V
- Up to 1A programmable charge current
- Thermal regulation and battery protection
- Automatic charge termination
- Low-noise linear charging design
- SOP8 compact package
Applications:
- USB rechargeable devices
- Power banks and portable chargers
- Wearable electronics
- Embedded battery management systems
- DIY lithium battery charging modules
- Consumer electronic devices
- General-purpose Li-ion charging applications
