The TP5400 is a versatile integrated circuit (IC) designed for efficient power management in portable electronic devices. Packaged in a compact SOIC-8 form factor, it combines a 1A lithium-ion battery charger with a 5V/1A boost converter, making it ideal for applications like power banks, handheld gadgets, and other battery-powered systems.

Features :

• Dual Functionality: Integrates both a lithium battery charging circuit and a 5V boost converter, allowing seamless transition between charging and power supply modes.
• Programmable Charging Current: Supports up to 1A charging current, adjustable via an external resistor, catering to various battery capacities.
• Fixed Charging Voltage: Charges single-cell lithium-ion batteries to a fixed voltage of 4.2V, ensuring optimal battery health and longevity.
• Boost Converter Output: Provides a stable 5V output at up to 1A, suitable for powering USB devices and other 5V electronics.
• Automatic Mode Switching: Automatically transitions between charging and boost modes based on input power availability and load conditions.
• Protection Mechanisms: Includes overcharge, over-discharge, short-circuit, and thermal protection features to safeguard both the IC and connected devices.

Specifications :

• Package Type: SOIC-8
• Charging Current: Up to 1A (programmable)
• Charging Voltage: Fixed at 4.2V
• Boost Output Voltage: 5V ±5%
• Boost Output Current: Up to 1A
• Operating Temperature Range: -40°C to 85°C
• Input Voltage Range: 3.0V to 5.5V

Applications :

• Power Banks: Provides efficient charging and discharging cycles for portable battery packs.
• USB Backup Power Supplies: Serves as a core component in emergency USB power sources.
• Portable Electronics: Ideal for devices requiring compact power management solutions, such as handheld gaming consoles and wearable gadgets.
• DIY Projects: Suitable for hobbyists building custom battery-powered systems.