LTC4150CMS#PBF - Coulomb Counter IC from Linear Technology

The LTC4150CMS#PBF is a sophisticated coulomb counter integrated circuit from Linear Technology, designed for precise battery monitoring in portable devices. This high-precision IC is capable of measuring battery charge state in applications where battery health and efficiency are crucial. It is a crucial component for power management in various electronic products, ensuring that battery usage is optimized and device runtimes are maximized.

Featuring an operating voltage range from 2.7V to 8.5V, the LTC4150 can accommodate single-cell Li-Ion batteries as well as multi-cell battery stacks. This versatility makes it suitable for a wide array of portable electronics, from smartphones and laptops to medical and industrial devices.

The LTC4150CMS#PBF operates by monitoring the bidirectional current flow through a sense resistor placed in the path of the battery supply. It integrates the current flow over time to accurately measure the amount of charge entering or leaving the battery. This high-resolution current sensing allows for detailed analysis and management of battery consumption, which is critical for extending the lifespan of rechargeable batteries and ensuring reliable operation of the device it powers.

Key Features:

• High accuracy coulomb counting
• Wide operating voltage range: 2.7V to 8.5V
• Low quiescent current
• Automatic battery depletion detection
• 1% charge accuracy
• Simple interface for data logging
• Compact MSOP-10 package

The LTC4150CMS#PBF also includes an onboard 1MHz I2C interface, which allows for easy communication with microcontrollers and processors. This enables the device to report battery status to the system for real-time monitoring and battery management decisions. Additionally, the IC incorporates a feature to detect battery depletion, automatically signaling the system when the battery reaches a critically low state.

Encased in a compact MSOP-10 package, the LTC4150 is designed to occupy minimal space on a printed circuit board, making it an excellent choice for space-constrained applications. Its low quiescent current ensures minimal impact on the battery life, further enhancing the efficiency of the overall system.

Overall, the LTC4150CMS#PBF from Linear Technology represents a reliable and accurate solution for battery charge monitoring and is an essential component for any power-conscious portable device design.