LTC4075HVXEDD#PBF - Dual Input USB/AC Adapter Li-Ion Battery Charger

The LTC4075HVXEDD#PBF is a versatile and compact lithium-ion battery charger integrated circuit designed by Linear Technology, which is now part of Analog Devices. This efficient charging solution is tailored for portable electronic devices that require a reliable power management system. It is capable of being powered by a USB port or an AC adapter, providing flexibility for various charging environments.

One of the key features of the LTC4075HVXEDD#PBF is its dual input capability, which allows the device to automatically adapt to the connected power source, ensuring optimal charging for the connected battery. The charger supports a wide input voltage range, making it suitable for use with high voltage power supplies. This feature is particularly beneficial for devices that may be used in regions with varying power standards or for travelers who need a charger that can adapt to different power sources.

The LTC4075HVXEDD#PBF offers a programmable charge current up to 950mA from the AC adapter input, and up to 100mA or 500mA when powered by a USB port. This flexibility allows the charger to accommodate different battery capacities and charging requirements. It also features a precision end-of-charge control, which ensures the battery is charged accurately and safely, enhancing the overall lifespan of the battery.

Thermal regulation is another important aspect of the LTC4075HVXEDD#PBF, which protects the device and the battery from overheating during the charging process. This is achieved by monitoring the temperature and adjusting the charge current accordingly, thereby maintaining safe operation even under high power conditions.

In terms of safety, the charger includes features such as automatic recharge, overvoltage protection, and a charge status output signal. These features provide additional layers of protection for both the charger and the battery, ensuring a reliable and secure charging process.

Overall, the LTC4075HVXEDD#PBF from Linear Technology is a sophisticated and reliable solution for charging lithium-ion batteries in a wide range of portable devices. Its dual input flexibility, comprehensive safety features, and programmable charging parameters make it an ideal choice for designers looking to incorporate a high-performance charging system into their products.