LTC4090EDJC-5#PBF

Battery Management Overview

The LTC4090EDJC-5#PBF is a USB power manager and high-voltage lithium-ion/polymer battery charger manufactured by Analog Devices. It operates within a supply voltage range of 4.35V to 5.5V and supports single-cell battery configurations. The device integrates over-current and over-temperature fault protection mechanisms to ensure system safety. It utilizes a 22-lead DFN package measuring 6mm x 3mm with an exposed pad, designed for surface-mount installation. The component functions as a comprehensive solution for managing power distribution from USB sources while handling battery charging tasks in portable applications.

Battery Management Feature Summary

• Integrates USB power management with high-voltage battery charging capabilities
• Provides automatic current limiting for total system power control
• Includes built-in over-current and over-temperature fault protection

Battery Management Applications

• Portable electronic devices requiring USB power management
• Lithium-ion and lithium-polymer battery charging systems
• USB-powered peripheral equipment with integrated battery backup

Battery Management Procurement Notes

Verify the specific suffix #PBF indicates lead-free RoHS compliance when ordering. Confirm the 22-lead DFN package dimensions match your PCB footprint requirements. Ensure the operating temperature range of -40°C to 85°C aligns with your environmental specifications. Check for any recent product change notices regarding pinout or electrical characteristics before finalizing procurement.

Battery Management Selection Notes

Select this component for designs requiring a unified USB power manager and battery charger. It is suitable for applications needing precise control over total system current drawn from the USB host. Consider the 22-lead DFN package size constraints during layout planning. Verify compatibility with the target lithium-ion or lithium-polymer battery chemistry for optimal charging performance.

Battery Management Part Context

This part belongs to the LTC4090 family of USB power managers. It is specifically engineered for portable electronics that require efficient power distribution from USB interfaces. The device simplifies design by combining power path management and battery charging functions into a single integrated circuit, reducing component count and board space requirements.

Battery Management Replacement Considerations

Consult official Analog Devices documentation for verified cross-reference part numbers. Ensure any substitute maintains compatible voltage ranges and package dimensions. Verify that alternative components support the same USB interface standards and battery chemistries.