The LTC4007EGN#PBF from Linear Technology is a highly efficient, standalone lithium-ion battery charger that is designed to simplify the charging process for a wide range of battery applications. This advanced charger is housed in a 24-lead SSOP package, making it compact enough for space-constrained applications while still offering robust performance and features.

Key Features

• Wide Input Voltage Range: The LTC4007EGN#PBF operates from an input voltage range of 4.5V to 28V, making it versatile for various power supply conditions.
• High Charge Current: It can deliver up to 4A of charge current, which can be programmed via an external resistor.
• High Efficiency: The charger features a high-efficiency synchronous buck regulator architecture, ensuring minimal heat generation and maximum battery life.
• Multiple Charging Stages: It includes preconditioning, constant current, and constant voltage phases, with an automatic recharge feature.
• Charge Termination: The LTC4007EGN#PBF provides charge termination based on minimum current, ensuring the battery is not overcharged.
• Protection Features: It includes overvoltage protection, thermal regulation, and a safety timer for added security during the charging process.

Applications

The LTC4007EGN#PBF is ideal for portable consumer electronics, medical and industrial equipment, and any application where efficient charging of lithium-ion batteries is required. Its ability to manage the charging process without the need for an external microcontroller makes it a convenient and reliable solution for battery-powered devices.

Technical Specifications

The device supports a programmable float voltage up to 4.2V/cell, which is the standard voltage for most Li-Ion cells. It also provides an NTC thermistor input for temperature-qualified charging, ensuring the battery is charged within safe temperature limits. The LTC4007EGN#PBF is designed to be compliant with various industry standards, reflecting Linear Technology's commitment to quality and reliability.

For more detailed information, technical documentation, and application notes, interested parties should consult the datasheet and support materials provided by Linear Technology.