Linear Technology LTC4150IMS#PBF Coulomb Counter IC

The LTC4150IMS#PBF is a sophisticated coulomb counter integrated circuit from Linear Technology that offers precision electric charge measurement over a wide range of operating conditions. Designed to accurately monitor battery usage in handheld PCs, cell phones, and various medical and industrial devices, this product is a key component for power-conscious systems.

This IC directly measures battery charge in portable devices by monitoring the high-side battery current. Its unique feature is that it can sense battery charge both in charging and discharging states, making it an invaluable tool for real-time and accurate battery monitoring. The LTC4150IMS#PBF operates with battery voltages ranging from 2.7V to 8.5V, making it versatile for use in many different battery chemistries and configurations.

The device includes a precision analog integrator, a sense resistor, and no less than two comparators to provide a pulse output proportional to the battery charge with a programmable gain. This output can then be used with a microcontroller to calculate the remaining battery capacity and manage the power consumption of the application more effectively.

One of the key advantages of the LTC4150IMS#PBF is its low power consumption. It features a shutdown mode that reduces power usage to a mere 16uA, which is crucial for prolonging battery life in portable applications. Additionally, the IC is designed to be robust, with an operating temperature range from -40°C to 85°C, ensuring reliable performance under a wide range of environmental conditions.

The LTC4150IMS#PBF comes in a compact, 10-lead MSOP package, which is ideal for space-constrained applications. Its small footprint, combined with the low external parts count, makes it easy to integrate into existing designs without requiring significant board space or complex routing.

Whether you are developing a power management system for the latest portable electronics or need accurate battery monitoring for critical medical devices, the LTC4150IMS#PBF from Linear Technology is a top choice for designers looking for reliability, accuracy, and efficiency.