LTC4069EDC#TRMPBF

Battery Chargers Overview

The LTC4069EDC#TRMPBF is a standalone lithium-ion battery charger integrated circuit manufactured by Analog Devices Inc. It supports single-cell Li-Ion batteries with a nominal voltage of 4.2V and operates within a supply voltage range up to 5.5V. The device features a programmable constant-current charging capability with a maximum charge current of 750mA. It is housed in a compact 6-WFDFN (2x2) surface-mount package with an exposed pad, designed for thermal efficiency. The component is rated for operation across an extended temperature range from -40°C to +85°C.

Battery Chargers Feature Summary

• Integrates NTC thermistor input for precise battery temperature monitoring during the charging cycle
• Provides fully automatic CC/CV charging profile optimized for single-cell lithium-ion chemistry
• Features a small footprint 2mm x 2mm DFN package suitable for space-constrained portable designs

Battery Chargers Applications

• Portable consumer electronics requiring single-cell lithium-ion power sources
• Battery-powered medical devices needing reliable thermal management
• Industrial handheld instruments utilizing compact power management solutions

Battery Chargers Procurement Notes

Verify the specific suffix TRMPBF indicates tape-and-reel packaging with lead-free finish when ordering. Confirm that the application circuit includes the required external components such as the programming resistor and NTC thermistor network as specified in the official datasheet. Ensure the PCB layout adheres to the recommended copper pour guidelines for the exposed pad to maintain thermal performance and electrical reliability.

Battery Chargers Selection Notes

Select this component when a dedicated single-cell charger with integrated thermal regulation is required. It is suitable for applications where board space is limited due to its 2x2mm package. Consider the 750mA maximum current limit against the target battery capacity. Verify compatibility with the system's input voltage source, which must not exceed the 5.5V absolute maximum rating.

Battery Chargers Part Context

This part belongs to the LTC4065/LTC4069 family of standalone battery chargers from Analog Devices. While sharing similar form factors and basic charging functions, the LTC4069 specifically distinguishes itself by including an NTC thermistor input pin for enhanced safety monitoring compared to variants without this feature.

Battery Chargers Replacement Considerations

The LTC4065EDC#TRMPBF is a related variant within the same family but lacks the NTC thermistor input functionality. Substitution requires verifying if the application design relies on the integrated NTC monitoring or if external thermal protection is already implemented.