Linear Technology LTC4007EUFD-1 High Efficiency Standalone Li-Ion Battery Charger

The LTC4007EUFD-1 from Linear Technology is a high-performance, standalone battery charger designed for single-cell lithium-ion batteries. This advanced charging controller offers a compact, efficient, and reliable solution for a variety of applications including portable electronics, medical devices, and industrial systems.

Key Features:

• High Efficiency: The LTC4007EUFD-1 provides an efficient charge cycle with up to 4A of charge current, ensuring rapid and energy-saving battery charging.
• Wide Input Voltage Range: With an input voltage range of 4.5V to 28V, it can accommodate a broad spectrum of power supplies.
• Adjustable Charge Current: Users can set the charge current from 1A to 4A via a programmable resistor, allowing for flexible charging options tailored to the needs of the battery.
• Charge Voltage Regulation: The precision of the charge voltage regulation is ±0.8%, which is critical for the longevity and safety of lithium-ion batteries.
• Multiple Charging Stages: The charger employs a three-stage charging process (bulk charge, absorption charge, and float charge) to ensure the battery is charged quickly and efficiently without overcharging.
• Protection Features: It includes numerous protection features such as overvoltage protection, thermal regulation, and a timer for end-of-charge control.
• PowerPath Control: The LTC4007EUFD-1 also supports PowerPath control, which allows the system to be powered from the input source while simultaneously charging the battery.
• Small Package: Available in a compact 28-lead QFN package, the LTC4007EUFD-1 saves board space and is suitable for space-constrained applications.

Applications:

The LTC4007EUFD-1 is ideal for a wide range of applications that require efficient and reliable battery charging. It is particularly well-suited for portable devices where space is at a premium and energy efficiency is of paramount importance. Its robust protection features also make it an excellent choice for safety-critical applications.

With its combination of high efficiency, broad input voltage range, and advanced features, the LTC4007EUFD-1 stands out as a premier solution for lithium-ion battery charging in demanding applications.