LTC4091EDJC#PBF

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The LTC4091EDJC#PBF is a versatile battery charger from Linear Technology designed to efficiently charge high capacity Lithium-Ion batteries in a wide array of applications. The components of this IC include a switch-mode high-efficiency boost converter, a current-mode buck regulator, and a fault management system that monitors a wide range of battery parameters to provide safe and reliable charging. The IC is capable of charging a single cell Li-Ion battery at up to 4A and up to 4V, making it ideal for both high-performance and high-capacity battery applications.

The LTC4091EDJC#PBF operates on a range of input voltage sources, which makes it an ideal choice for Universal Serial Bus (USB) applications that require a wide range of voltages to charge the battery. The IC automatically adapts its power output to match the voltage of the power source. This enables USB charger adapters with outputs ranging from powered USB downstream port (PD) to low-voltage USB such as power adapters to be used without any user interaction.

The LTC4091EDJC#PBF features a programmable timer, allowing the user to set the time that the charge cycle will take. This allows the system to be tuned for the specific characteristics of the battery and the application. A pulse-by-pulse current-limit function allows the user to set the maximum charge current, ensuring that the cell does not experience excessive over-charging. It also reduces power dissipation and heat in the cell during charging.

The fault protection system of the LTC4091EDJC#PBF can be programmed to detect a range of battery faults. These faults can be from over-discharge or over-voltage, under-voltage, over-current and thermal faults experienced during charging. The fault report is sent from the IC and the charging process is stopped with the respective fault condition. This increases the reliability of the system, since the battery will not be subjected to continuous over-charging or other dangerous conditions.

The LTC4091EDJC#PBF has a wide range of features that make it an ideal choice for battery charging applications. Its programmable current limit, timer and fault protection features make it flexible and reliable, making it suitable for both high-performance and high-capacity battery applications. This makes the LTC4091EDJC#PBF an excellent choice for many kinds of portable devices, wearable electronics and industrial equipment, among others.

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