LTC4162IUFD-FADM#PBF

Battery Management Overview

The LTC4162IUFD-FADM#PBF is a monolithic synchronous step-down switching battery charger and PowerPath manager from Analog Devices. Designed for lithium iron phosphate (LiFePO4) batteries, it supports input voltages ranging from 4.5 V to 35 V. The device delivers an output current of 3.2 A with an adjustable output voltage. It operates within a temperature range of -40°C to +125°C and is housed in a surface-mount QFN package.

Battery Management Feature Summary

• Integrates a synchronous step-down switching regulator with a PowerPath manager for seamless power distribution between input sources and the battery.
• Optimized specifically for charging lithium iron phosphate (LiFePO4) battery chemistries.
• Supports multiple input sources including wall adapters, backplanes, and solar panels.

Battery Management Applications

• Solar-powered single-cell LiFePO4 chargers with maximum power point tracking
• USB Power Delivery powered LiFePO4 chargers
• Wall adapter or backplane powered LiFePO4 battery management systems

Battery Management Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm that the specific suffix matches the required LiFePO4 configuration. Check current supply status as availability may be limited or subject to factory special orders. Ensure compliance with RoHS directives and verify operating temperature ratings for the target environment before finalizing procurement.

Battery Management Selection Notes

Select this component when designing for LiFePO4 batteries requiring high input voltage tolerance up to 35 V. It is suitable for applications needing integrated PowerPath management to prioritize system load over battery charging. Consider the 3.2 A output capability and the specific thermal requirements of the QFN package. Ensure the design supports the necessary input source types such as USB PD or solar arrays.

Battery Management Part Context

This part belongs to the LTC4162 family of advanced battery chargers. The 'F' designation indicates optimization for Lithium Iron Phosphate chemistry, while 'I' denotes industrial temperature range. The 'UFD' package refers to the specific QFN footprint. This series integrates power path management to handle transitions between various input sources and battery states efficiently.

Battery Management Replacement Considerations

Direct substitutes include other variants within the LTC4162 family tailored for different battery chemistries, such as LTC4162EUFD-L42#PBF for Lithium-ion/Polymer cells. Cross-chemistry replacements require verifying voltage thresholds and charge termination profiles. Always confirm pin compatibility and thermal performance when substituting across the family.