The STBC21FTR is a sophisticated battery charger integrated circuit (IC) designed by STMicroelectronics, a leader in semiconductor solutions. This high-performance IC is tailored for charging single-cell Lithium-ion and Lithium-polymer batteries, widely used in portable electronic devices such as smartphones, tablets, digital cameras, and other USB-powered gadgets.

Key Features

• Advanced Charging Algorithm: The STBC21FTR employs an intelligent charging algorithm that optimizes the charging process for speed and efficiency, ensuring that the battery is charged quickly and safely.
• Adjustable Charge Current: The device allows for programmable charge current up to 1.2A, enabling users to customize the charging speed according to the specific requirements of their battery and application.
• Integrated Power Switch: An integrated power MOSFET switch reduces the need for external components, simplifying the design and reducing the overall solution footprint.
• Thermal Regulation: To ensure safety, the STBC21FTR incorporates a thermal regulation feature that prevents overheating by automatically reducing charge current under high temperature conditions.
• Charge Status Indicators: Built-in charge status and fault indication pins provide real-time feedback on the charging process, allowing for easy monitoring and diagnostics.

Protection Features

• Overvoltage Protection: The IC protects against input overvoltage conditions, preventing damage to the battery and the charging circuit.
• Precharge Conditioning: For deeply discharged batteries, the STBC21FTR provides a precharge feature that conditions the battery with a lower charge current before entering the main charging phase.
• Safety Timers: Programmable safety timers are included to terminate the charge if the battery does not reach full charge within a predefined time, enhancing safety.
• Charge Termination: The device supports automatic charge termination when the battery reaches its end-of-charge voltage, preserving the battery's lifespan.

The STBC21FTR is available in a compact QFN package, making it an ideal choice for space-constrained applications. Its comprehensive feature set and protection mechanisms make it a reliable and efficient solution for modern battery charging needs.