LTC4000EUFD#PBF

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The LTC4000EUFD#PBF is a compact, high-efficiency, dual-input battery charger for consumer and industrial applications. It offers a wide input voltage range from 2.75 V to 36 V and up to 1000 mA and up to 4.2 V in output, allowing for the fast and efficient charging of mobile devices and digital devices. The device also provides an accurate charge current through its "Soft-Start" mechanism and supplies a constant-voltage power source to maintain the full charge state of Li-ion batteries and other rechargeable batteries.The LTC4000EUFD#PBF is a single-chip power management integrated circuit (PMIC), designed to provide efficient power conversion and charge management for consumer applications that require both a wide input voltage range and a high power delivery capability. The device incorporates both synchronous rectification and MOSFET pass transistor charge pumps, allowing it to provide a peak efficiency of up to 95%. The device also provides over-voltage, over-current and over-temperature protection, as well as an adjustable input voltage threshold window to help protect against short circuit conditions.Working PrincipleThe LTC4000EUFD#PFB is a controller-based charger, operating to a pre-programmed profile that is stored on its internal addressable memory. When a battery is connected, the device runs a power-up cycle during which it programs the appropriate voltage and current outputs. To ensure a safe charge, the device then checks and validates the battery\'s voltage response to confirm that the battery can accept a certain amount of charge at a certain voltage and current level.Once the battery has been identified, the device starts a three-phase charging cycle that efficiently charges the battery safely and quickly. The first phase is a constant current charge in which the device evaluates the health and capacity of the battery, while the second phase is a constant voltage charge in which the device continues to charge the battery, but at a lower current. Finally, the third phase is the trickle charge in which the device has achieved all of the necessary charge level and maintains this voltage to ensure the battery remains fully charged.The LTC4000EUFD#PFB also provides a very user-friendly interface, allowing users to monitor their device\'s status in real-time. The device features an LED indication for both battery charging and battery level, allowing users to easily keep track of their device\'s battery status.ConclusionThe LTC4000EUFD#PFB is a compact, high-efficiency, dual-input battery charger for consumer and industrial applications. It features an adjustable input window and adjustable output voltages and currents, allowing for fast and efficient charging of mobile devices and digital devices. With its synchronous rectification, MOSFET pass transistor charge pumps, and over-voltage, over-current, and over-temperature protection, the LTC4000EUFD#PFB provides users with a reliable and efficient power conversion solution. With its user-friendly interface and LED indication, the device allows users to easily monitor and manage their battery life. The LTC4000EUFD#PFB is an ideal solution for a wide range of industrial and consumer applications.

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