As the Main Control Chip for TWS Earphone Charging Case, the chip detects the temperature sensor and voltage values through AD (Analog-to-Digital) conversion, monitoring the operating environment in real time. It uses SPI to drive an LCD screen that displays information such as connection status, working status, and battery level. It also supports charging management for the earphones and provides a UART interface for production testing and online firmware updates.

Application Advantages of N32G4FR Chip: 

• QFN40 package, meeting the requirements for small-sized devices.

• Arm® Cortex®-M4 core with high peripheral resource integration, running LiteOS, and offering high reliability.

• 5Msps high-speed ADC, combined with oversampling software algorithms for high-precision analog data acquisition.

• Dynamic operating power consumption of 60μA/MHz and static power consumption of 2μA

• Built-in hardware acceleration engine for cryptographic algorithms, ensuring high security.

Recommended Models:

• You can choose from N32G003 / N32G031 / N32L40x / N32G452 / N32G4FR based on the functional architecture of the TWS charging case.