Linear Technology's LTC4007EUFD-1#PBF High Efficiency Standalone Li-Ion/Polymer Battery Charger

The LTC4007EUFD-1#PBF is a highly efficient, standalone battery charger for lithium-ion or lithium-polymer batteries. Manufactured by Linear Technology, a leader in high-performance analog integrated circuits, this product is designed for portable electronic devices that require reliable and fast charging solutions. The LTC4007EUFD-1#PBF offers a range of features that make it a versatile and indispensable component in any battery-powered device.

Key Features:

• Wide Input Voltage Range: The device can operate with an input voltage range of 4.5V to 28V, making it suitable for a variety of power sources.
• High Charge Current Capability: It supports a programmable charge current up to 4A, allowing for rapid charging of large-capacity batteries.
• Efficient Power Conversion: The LTC4007EUFD-1#PBF boasts an efficiency of up to 95%, which minimizes power loss during the charging process and ensures a cooler operation.
• Multiple Charging Stages: It includes a preconditioning stage for deeply discharged cells, a constant-current fast-charge stage, and a constant-voltage stage to fully top off the battery.
• Charge Termination: The device automatically terminates the charge cycle when the charge current falls below a preset level after the final float voltage is reached.
• Battery Temperature Monitoring: It supports an external thermistor for temperature-qualified charging, enhancing safety and battery longevity.
• No External MOSFETs Required: The integrated synchronous rectification and internal high-side switch simplify the design and reduce external component count.

Applications:

The LTC4007EUFD-1#PBF is ideal for a wide range of applications, including:

• Portable Computers
• Portable Instruments
• Medical Equipment
• Li-Ion/Polymer Battery Backup Systems

With its compact, low-profile (3mm × 3mm) QFN package, the LTC4007EUFD-1#PBF integrates seamlessly into space-constrained designs, providing a sophisticated charging solution without compromising on performance. Its advanced features and high reliability make it the go-to choice for engineers and designers looking to enhance the user experience by ensuring their devices are powered efficiently and safely.