Product Overview: LTC4081EDD#PBF

The LTC4081EDD#PBF is a versatile and high-performance battery charger IC from Linear Technology, designed for single-cell lithium-ion or lithium-polymer batteries. This compact, highly integrated power management solution is housed in a small, 10-lead DFN package, making it an ideal choice for space-constrained applications.

Key Features

• Integrated PowerPath Management: The LTC4081EDD#PBF ensures that the system remains operational even when the battery is being charged. It can seamlessly transition between input power and battery power without interruption to the load.
• Adjustable Charging Current: Users can program the charge current up to 950mA, allowing for flexibility in the design to meet the charging requirements of various battery capacities.
• Thermal Regulation: To protect the battery and the charger, the LTC4081EDD#PBF includes thermal regulation, which reduces charge current if the internal temperature of the IC exceeds a preset threshold.
• High Efficiency: The device operates with high charging efficiency, minimizing heat generation and ensuring rapid charging of the battery.
• Charge Termination: The IC incorporates automatic charge termination based on a programmable charge timer or when the charge current falls below a certain level, ensuring the battery is not overcharged.
• No External MOSFET, Sense Resistor, or Blocking Diode Required: The LTC4081EDD#PBF simplifies the design and reduces the external component count, which can lead to a reduction in both cost and board space.

Applications

The LTC4081EDD#PBF is well-suited for a wide range of portable electronic devices, including:

• Handheld Instruments
• Medical Devices
• Personal Media Players
• GPS Devices
• Bluetooth Headsets
• Wearable Technology

Conclusion

Overall, the LTC4081EDD#PBF from Linear Technology is a powerful, efficient, and compact solution for modern battery charging applications. Its combination of integrated features and ease of use makes it an excellent choice for designers looking to optimize their power management systems in portable devices.