LTC4000IUFD#PBF

Battery Chargers Overview

The LTC4000IUFD#PBF is a battery charger controller and PowerPath manager manufactured by Analog Devices Inc. It integrates a linear charge regulator, a high-efficiency synchronous buck pre-regulator, and a dual-path power path manager for lithium-ion or lithium-polymer batteries. The device supports input voltages from 4.5V to 35V and delivers up to 3.2A of charge current. Key features include programmable charge termination, thermal regulation, and system load prioritization via the PowerPath function.

Battery Chargers Feature Summary

• Integrates a synchronous buck pre-regulator to improve charging efficiency from higher voltage sources
• Features a dual-path PowerPath manager that automatically prioritizes system loads over battery charging
• Includes a linear charge regulator with programmable constant current and constant voltage profiles
• Provides comprehensive protection including thermal regulation, input current limiting, and reverse blocking

Battery Chargers Applications

• Portable devices requiring efficient charging from USB or wall adapters
• Battery backup systems for real-time clocks and memory
• Industrial equipment with varying input voltage ranges
• IoT devices with mixed power source requirements

Battery Chargers Procurement Notes

Verify the exact suffix against the manufacturer's official datasheet to ensure correct package and temperature grade. Confirm RoHS compliance status through the specific product documentation. Check for any recent lifecycle notices or obsolescence warnings directly from Analog Devices before finalizing procurement plans.

Battery Chargers Selection Notes

Select this component when system design requires both high-efficiency pre-regulation and seamless power path management. It is suitable for applications where input voltage may exceed battery voltage significantly. Ensure the thermal performance meets the enclosure requirements given the integrated power stages. Compare with non-integrated solutions if board space allows for discrete components.

Battery Chargers Part Context

This part belongs to the LTC4000 family of battery chargers. It is designed to simplify power management in portable electronics by combining multiple functions into a single IC. The IUFD package indicates a specific QFN footprint suitable for surface mount assembly. It serves as a complete solution for managing energy flow between an adapter, battery, and system load.

Battery Chargers Replacement Considerations

LTC4000EUFD#PBF: Different package option (MSOP) compared to the QFN package of the IUFD variant. Verify pinout compatibility and thermal dissipation characteristics when substituting.