Linear Technology's LTC4075HVXEDD: A Robust USB Power Manager and Li-Ion Charger

The LTC4075HVXEDD is a highly integrated power management and battery charger IC designed to interface with modern electronics through the ubiquitous USB port. Manufactured by Linear Technology, this compact and efficient device is engineered to provide a seamless charging experience for single-cell lithium-ion batteries, a common power source for portable electronics. Its high voltage capability ensures compatibility with new-generation USB specifications and various charging environments.

Key Features

• Wide Input Voltage Range: The LTC4075HVXEDD can handle an input voltage range from 4.4V to 32V, making it versatile for use with USB sources and high voltage power supplies.
• Adjustable Charging Current: Users can set the charge current up to 950mA, allowing for customization based on the battery's capacity and the application's power requirements.
• Intelligent PowerPath Control: This feature allows the IC to seamlessly manage power between the input source, battery, and load, ensuring that the system remains operational even when the battery is being charged.
• Automatic Load Prioritization: The LTC4075HVXEDD prioritizes system load over battery charging, ensuring that the device remains powered in the event of a limited input power supply.
• Thermal Regulation: To maintain optimal performance and safety, the IC includes thermal regulation that reduces charge current during high temperature conditions.
• Low Profile: The device is offered in a low-profile (0.75mm) 12-lead DFN package, suitable for space-constrained applications.

Applications

The LTC4075HVXEDD is ideal for a wide range of portable devices that require efficient charging and power management. This includes smartphones, tablets, medical devices, and personal media players. Its robust design also makes it suitable for industrial and automotive applications where extended input voltage range and thermal performance are critical.

Conclusion

Linear Technology's LTC4075HVXEDD stands out as a comprehensive solution for USB power management and lithium-ion battery charging. Its advanced features and high voltage capability cater to the needs of modern portable devices, ensuring safe, efficient, and reliable operation. The LTC4075HVXEDD is a testament to Linear Technology's commitment to innovation in power management technology.