LT3650EDD-4.1#PBF

Battery Chargers Overview

The LT3650EDD-4.1#PBF is a monolithic lithium-ion battery charger manufactured by Analog Devices Inc., designed for single-cell applications with a fixed 4.1V output voltage. It operates within a wide input voltage range of 9V to 32V and supports a programmable charging current up to 2A. The device integrates an internal N-channel MOSFET switch, eliminating the need for external current sensing resistors or blocking diodes. Packaged in a thermally enhanced 10-lead DFN (3mm x 3mm) format, it ensures efficient thermal performance. Key features include automatic recharge capability, thermal regulation, and input current limit control.

Battery Chargers Feature Summary

• Integrates an internal N-channel power switch to minimize external component count
• Provides thermal regulation that dynamically adjusts charge current based on die temperature
• Includes input current limit control to prevent source overcurrent during high-power charging
• Offers automatic recharge functionality triggered when battery voltage drops below a preset threshold

Battery Chargers Applications

• Portable medical devices requiring compact power management solutions
• Handheld instrumentation and data acquisition systems
• Consumer electronics utilizing single-cell lithium-ion or lithium-polymer batteries
• Industrial handheld tools and equipment

Battery Chargers Procurement Notes

Verify the specific suffix #PBF indicates lead-free RoHS compliance before procurement. Confirm the EDD package variant matches the required PCB footprint. Check manufacturer documentation for any recent PCN updates regarding epoxy changes or marking modifications. Ensure the design accounts for the wide input voltage range compatibility with the system power supply.

Battery Chargers Selection Notes

Select this component for designs prioritizing minimal bill of materials due to the integrated switch topology. It is suitable for applications where space constraints favor the small DFN package. Consider the 2A maximum current rating against peak load requirements. Evaluate the thermal performance needs relative to the ambient operating conditions and board copper area available for heat dissipation.

Battery Chargers Part Context

This part belongs to the LT3650 family of mid-power Li-Ion chargers from Analog Devices. It shares architectural similarities with other members like the LT3650EMSE variants but differs in package type and pinout configuration. The EDD package provides a different thermal profile compared to MSOP options. It serves as a complete solution for single-cell charging without external pass elements.

Battery Chargers Replacement Considerations

LT3650EDD-8.2#PBF: Compatible alternative offering an 8.2V output for two-series cell configurations while maintaining similar control features.