LT3651IUHE-8.2#PBF

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The LT3651IUHE-8.2#PBF is an integrated synchronous battery charger specifically designed for low dropout (LDO) voltage applications. The device is a high efficiency battery charger controller which supports input voltages up to 8.2 V. It has a very low quiescent current and can provide up to 2A of charging current with a 3 MHz switching frequency. The device also includes a dedicated input voltage comparator, thermal protection function and complete battery charge/discharge protection. The LT3651IUHE-8.2#PBF is ideal for applications that require extended operating times from low dropout (LDO) voltage sources such as lithium-ion or LiFe batteries.

The device has an integrated charge pump with an accurate reference voltage, internal oscillator and three differently adjusted programmable preset charging current settings. The LT3651IUHE-8.2#PBF can also be programmed for auto-restart or low-battery indication. Its low-battery indication feature gives an indication at dropout or end-of-charge voltages.

The LT3651IUHE-8.2#PBF works by regulating its output voltage rail to the programmed charge current. It uses an internal voltage reference, current sense amplifier and voltage control loop to maintain the desired voltage rail. It features adjustable current limiting,configurable end-of-charge detection, and intelligent thermal protection to ensure the safety of the application. It is also capable of slow, fast and trickle charging, as well as maintain voltage regulation while providing short circuit protection.

The LT3651IUHE-8.2#PBF can be used in a variety of applications where a regulated low-dropout voltage is needed. Examples include portable devices such as cell phones, laptop computers, and emergency lights. It can also be used in renewable energy and smart metering, industrial control, lighting and UPS systems.

The LT3651IUHE-8.2#PBF is a high efficiency, low dropout battery charger designed to provide long operating times from low-dropout sources. It is capable of providing accurate current regulation and is programmable for auto-restart and low-battery indication. It is ideal for applications that require extended operating times from low dropout sources, such as lithium-ion or LiFe batteries.

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