TP4057

Overview

The EVVO TP4057 is a linear lithium-ion battery charger IC designed for single-cell applications. It operates within a supply voltage range up to 6.5V and supports a maximum programmable charging current of 500mA. The device maintains a preset charge voltage of 4.24V with high precision. It utilizes an SOT-23-6 surface-mount package and functions reliably across a temperature range of -40°C to 85°C.

Feature Summary

• Integrates thermal regulation to automatically reduce charging current when junction temperature exceeds safe limits, ensuring operational safety during high-load conditions.

Applications

• Portable Bluetooth speakers
• Mini fans
• Electronic scales

Procurement Notes

Verify the specific manufacturer designation on the component marking against official datasheets, as multiple vendors produce this part number. Confirm that the received units match the SOT-23-6 package type and intended electrical specifications before integration into the design.

Selection Notes

Select this model when dual LED status indication is required, as it includes dedicated CHRG and STDBY output pins not present in similar five-pin variants. Ensure the application requires a 4.24V termination voltage rather than the standard 4.20V found in other models.

Part Context

This component belongs to the family of single-cell linear lithium-ion chargers. It shares core CC/CV architecture with related models but distinguishes itself through the six-pin configuration that enables independent status signaling for charging and standby states.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin compatibility and voltage thresholds carefully if considering alternative manufacturers or packages.