Linear Technology's LTC4067EDE#TRPBF Battery Charger and PowerPath Manager

The LTC4067EDE#TRPBF is a versatile and highly integrated battery charger and PowerPath manager designed by Linear Technology, which is now part of Analog Devices. This compact and efficient device is engineered to cater to the demanding requirements of portable applications, ensuring that single-cell lithium-ion/polymer batteries are charged safely and efficiently while providing a stable power supply to the system load.

Key Features

• Integrated PowerPath Management: The LTC4067EDE#TRPBF allows for seamless power sharing between the battery and the load, ensuring that the system remains operational even when the battery is being charged.
• Programmable Charge Current: Users can set the charge current up to 1A through a single resistor, offering flexibility to accommodate different battery capacities and charging profiles.
• Automatic Load Prioritization: The device intelligently prioritizes the system load over battery charging, ensuring that the most critical operations receive power first.
• Thermal Regulation: To maintain safety and protect against overheating, the LTC4067EDE#TRPBF includes thermal regulation that reduces charge current when the device temperature rises to a preset threshold.
• Charge Status Indicators: Integrated status pins provide real-time charge status indicators, which can be used to drive external LEDs or interface with a microcontroller for charge monitoring.

Applications

The LTC4067EDE#TRPBF is ideal for a wide range of portable devices, including:

• Smartphones
• Tablets
• Portable medical equipment
• Handheld instruments
• USB-powered gadgets

Technical Specifications

This device comes in a compact 12-Lead DFN package, ensuring minimal footprint on the PCB. It supports a wide input voltage range and is fully compliant with USB power specifications. The LTC4067EDE#TRPBF also features a range of safety mechanisms, including overvoltage protection, short-circuit protection, and a battery preconditioning feature that gently ramps up the charge current for deeply discharged batteries.

With its advanced capabilities and robust design, the LTC4067EDE#TRPBF from Linear Technology stands as an excellent solution for designers looking to integrate a reliable charging and power management system into their portable electronic devices.