LTC1325CN#PBF

The LTC1325CN#PBF is a highly integrated battery charger IC for single-cell Li-Ion (Li-Ion) or Li-polymer cells. The LTC1325CN#PBF integrates an linear charge regulator, power MOSFET, current sense amplifier, voltage reference, timer and comparators in a single IC. The device is suitable for any type of Li-Ion or Li-polymer cell with a voltage range of 2.9V to 4.3V. The LTC1325CN#PBF is available in 8-lead, MSOP and TSSOP packages.

The LTC1325CN#PBF application field is mainly in the PMIC - Battery Chargers. This device is used in designs where the load demands the full battery voltage and current while the battery charger is in standby mode. The device monitors the battery voltage and turns on the charging circuitry when the battery voltage drops below a predetermined level. The device is capable of charging a battery from full discharge to full charge in less than 1 hour.

The LTC1325CN#PBF has an operating power range of 5V to 26V, allowing it to be used in a wide range of applications that require a battery charger IC. The device offers a low quiescent current of 8.5mA and offers peak current limit of up to 4A. It also features current sense amplifier, voltage reference, timer, and comparators in a single integrated package.

The working principle of the LTC1325CN#PBF is relatively simple, but it is very efficient in both charging performance and power consumption. The device operates in three charging modes, Constant Voltage (CV), Constant Current (CC) and Trickle Charging. When the battery voltage enters the trickle charging state, the voltage is held constant while the current is reduced to a low level to ensure the battery is not damaged by over-charging. During CV and CC, the battery is monitored and when the voltage reaches the predetermined charge level, the current is reduced, thus preventing the battery from being overcharged.

The LTC1325CN#PBF is an ideal battery charger IC for applications where a long battery life is desired. The device offers improved accuracy, allowing the controller to accurately set the charge current without over- or under-charging the battery. The device also offers integrated protection from over-voltage, over-temperature and over-current conditions, thus providing a high level of safety for the user.

In conclusion, the LTC1325CN#PBF is a highly integrated, single-cell battery charger IC designed for Li-Ion and Li-Polymer battery packs. The device operates in three charging modes and has excellent performance and safety features, making it an ideal choice for PMIC - Battery Charger applications.