LTC4162EUFD-L41M#TRPBF

Battery Management Overview

The LTC4162EUFD-L41M#TRPBF is a monolithic synchronous step-down switching battery charger and PowerPath manager manufactured by Analog Devices Inc. It supports lithium-ion and lithium-polymer battery types with an output voltage of 4.1 V and a maximum output current of 3.2 A. The device operates from a supply voltage range of 4.5 V to 35 V. It features an integrated PowerPath controller for seamless power distribution between input sources and the battery. The component is housed in a 28-lead QFN package and is rated for operation within a temperature range of -40°C to +125°C.

Battery Management Feature Summary

• Integrates a high-efficiency synchronous buck converter for charging lithium-ion and lithium-polymer batteries
• Includes an advanced PowerPath manager that automatically prioritizes system power from available sources while charging the battery
• Supports programmable input current limiting to protect upstream power supplies such as wall adapters or solar panels

Battery Management Applications

• Portable devices requiring simultaneous system power and battery charging from USB or AC adapters
• Industrial equipment powered by backplanes or wide-range DC inputs
• Solar-powered systems utilizing photovoltaic panels as the primary energy source

Battery Management Procurement Notes

Verify the specific suffix L41M against official Analog Devices documentation to confirm the 4.1V output configuration. Confirm the TRPBF suffix indicates tape-and-reel packaging rather than tube packaging. Ensure the part number matches the exact manufacturer designation to avoid compatibility issues with reference designs.

Battery Management Selection Notes

Select this component when designing systems that require management of multiple input sources including wall adapters, backplanes, or solar panels. It is suitable for applications needing precise control over lithium-ion or lithium-polymer battery charging profiles. Consider the thermal performance requirements given the 3.2A output capability and the operating temperature range specifications.

Battery Management Part Context

This part belongs to the LTC4162 family of battery chargers designed for versatile input environments. The L41M variant specifically targets single-cell lithium-ion and lithium-polymer batteries with a 4.1V termination voltage. It shares the core architecture of the series but differs in output settings and packaging options compared to other variants like the L42 or SADM models.

Battery Management Replacement Considerations

Direct substitutes include other LTC4162 variants such as LTC4162EUFD-L41#PBF for tube packaging or LTC4162EUFD-L42#TRPBF for 4.2V output applications. Verify pinout compatibility and thermal characteristics before substitution.