Product Overview: LTC4061EDD-4.4

The LTC4061EDD-4.4 is a highly integrated battery charger and power management IC from Linear Technology, designed for efficient charging of single-cell lithium-ion batteries. This advanced charging solution is perfect for portable electronic devices, such as smartphones, digital cameras, and other USB-powered gadgets, where space is at a premium and efficient power management is essential.

Key Features

• Adjustable Charge Current: The LTC4061EDD-4.4 allows users to set the charge current according to the battery's requirements, ensuring safe and efficient charging.
• Automatic Recharge: Once the battery voltage falls below a preset level, the device automatically initiates a recharge cycle, maintaining the battery at optimum levels.
• Charge Termination: To preserve battery health, the LTC4061EDD-4.4 includes a termination feature that stops charging once the battery is fully charged.
• Thermal Regulation: This feature prevents the charger from overheating by reducing the charge current during high temperature conditions.
• Low Profile: The device comes in a low-profile (0.75mm) 10-lead DFN package, which is ideal for space-constrained applications.
• Presets for 4.4V Batteries: The LTC4061EDD-4.4 is specifically designed to charge 4.4V lithium-ion batteries, making it a specialized solution for devices that require this particular voltage.

Applications

The LTC4061EDD-4.4 is versatile and can be used in various applications, including:

• Portable Medical Devices
• Handheld Instruments
• Wireless Headsets
• Wearable Technology
• Backup Battery Systems

Technical Specifications

With an input voltage range of 4.25V to 8V, the LTC4061EDD-4.4 can accommodate a wide array of USB sources and wall adapters. Its programmable charge current can go up to 750mA, while the final float voltage accuracy is maintained at ±0.6%. Additionally, no external MOSFET, sense resistor, or blocking diode is required, simplifying the design and reducing the bill of materials.

For developers and engineers looking for a reliable and compact charging solution, the LTC4061EDD-4.4 from Linear Technology offers a perfect blend of performance, efficiency, and space-saving design.