LTC1760IFW#TRPBF

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PMIC - Battery Chargers are a vital component of any type of mobile device. Though development in mobile technology is moving at a rapid pace, ensuring the power to these devices is always available is one of the most important aspects of their engineering. One such power management integrated circuit is the LTC1760IFW#TRPBF, which is used in a wide array of battery-powered systems. Here, we will discuss its application field and examine its working principle.

Application Field

The LTC1760IFW#TRPBF is tailored toward portable applications and is a linear charger controller IC created for batteries with up to four cells. It is capable of providing up to 3A of charging current and accepts a 4.95V to 16.75V input voltage. It is fully protected against reverse current and short-circuit conditions. In addition, it features a low power mode that keeps power consumption low when the device is left in standby.

The LTC1760IFW#TRPBF has a wide range of applications and is ideally suited for many types of battery-operated systems, including portable media players, notebook computers, camcorders, portable oscilloscopes, digital cameras, GPS receivers, portable medical equipment, and cordless drills. Its ability to provide up to 3A of charging current, combined with its other features, makes it suitable for many other battery-powered applications.

Working Principle

The LTC1760IFW#TRPBF incorporates an advanced linear topology that simplifies the design process, while simultaneously minimizing power losses during charging. Its design is based on a pre-selected regulated voltage divided into successive reducing voltage levels that reach the battery cells via a single MOSFET switch. As such, the regulator is able to measure the voltage levels all the way down to the battery\'s own voltage.

The charger will normally regulate the output voltage set at a preset level of the selected cell, starting with the highest cell voltage in a series configuration for a multiple cell battery. As each cell reaches the pre-selected voltage level, the charger then switches to the next cell, repeating the same process. When all cells in the battery have reached the pre-selected voltage level, the charger activates a low voltage cutoff state and ceases charging.

The LTC1760IFW#TRPBF also features an adjustable pre-regulation feature. This feature allows the device to provide greater safety for the battery by optimizing the charge time. Pre-regulation enables the charger to cut the charging time significantly, preventing the battery from being overcharged. Before a specific battery cell reaches the pre-set voltage level, the charger temporarily reduces the output voltage and current and allows to detect potential over-voltage conditions.

When using the LTC1760IFW#TRPBF, users are able to configure the maximum charge current, maximum charge voltage, charge termination, and pre-regulation point. This provides an added layer of flexibility that\'s not normally seen in other battery charger ICs. Plus, its integrated power path management function helps improve the performance of the system and makes sure that the system\'s battery state is always updated.

Conclusion

The LTC1760IFW#TRPBF is a powerful battery charger IC that is ideally suited for a variety of portable applications. Its advanced linear topology, adjustable pre-regulation feature, and integrated power path management functions provide extra protection and help optimize charge time and system performance. With its wide range of features, the LTC1760IFW#TRPBF is an ideal choice for anyone looking to design a reliable and efficient battery charger for their application.

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