The BQ2004PNG4 is an integrated circuit (IC) component manufactured by Texas Instruments. It is a battery charge controller specifically designed for single-cell, Li-ion and Li-polymer batteries. This compact and versatile IC offers several key features that make it ideal for various portable electronic applications.
One of the notable features of the BQ2004PNG4 is its ability to provide a complete charge management solution. It integrates all the necessary functions required for efficient and safe charging of Li-ion and Li-polymer batteries. This includes charge termination, voltage and current regulation, thermal management, and charge status indication.
The BQ2004PNG4 supports both linear and switching charging modes, allowing flexibility in different charging scenarios. In linear mode, it provides a constant current and constant voltage charging to the battery. On the other hand, the switching mode enables higher efficiency by utilizing a synchronous buck converter topology.
To ensure safety during the charging process, the BQ2004PNG4 features multiple protection mechanisms. It includes over-voltage protection (OVP), over-temperature protection (OTP), and over-current protection (OCP). These safeguards prevent potential damage to the battery caused by voltage spikes, excessive temperature, or current surges.
Another prominent feature of the BQ2004PNG4 is its communication capability. It incorporates a I2C serial interface, allowing communication with a microcontroller or other control devices. This enables seamless integration and customization of charging parameters based on specific application requirements
