LT3650IMSE-8.4#PBF

Battery Chargers Overview

The LT3650IMSE-8.4#PBF is a monolithic switching battery charger designed for two-cell lithium-ion or lithium-polymer battery packs. It integrates a high-efficiency synchronous buck converter capable of delivering up to 2A of charging current. The device supports an input voltage range from 4.5V to 32V, allowing operation directly from various power sources including USB and wall adapters. It features an internal 8.4V regulated output for the specific termination voltage of two-series cells. The IC includes programmable charge current control, thermal regulation, and safety timers within a compact 12-lead MSOP package with an exposed pad.

Battery Chargers Feature Summary

• Integrates a synchronous step-down DC/DC converter optimized for high efficiency in battery charging applications
• Supports automated charge cycles including constant current, constant voltage, and trickle charge modes
• Includes thermal regulation to reduce charge current during high junction temperatures
• Features integrated safety timer to terminate charging if conditions are not met

Battery Chargers Applications

• Portable electronic devices requiring two-cell Li-Ion or Li-Po battery management
• Medical equipment utilizing rechargeable battery packs
• Industrial handheld instruments and data loggers
• Automotive infotainment and telematics backup power systems

Battery Chargers Procurement Notes

Verify the suffix #PBF indicates lead-free tin plating and RoHS compliance when sourcing. Confirm the IMSE variant corresponds to the industrial temperature range specifications. Ensure the ordering part number matches the exact tape and reel or tube packaging requirements for your assembly line. Cross-reference the manufacturer's latest datasheet revision to confirm pinout and electrical parameter consistency before finalizing procurement contracts.

Battery Chargers Selection Notes

Select this component when designing for two-series lithium battery architectures requiring up to 2A charge current. The 32V maximum input voltage accommodates standard 24V nominal systems and automotive environments. Consider the 12-MSOP-EP package for thermal dissipation needs in space-constrained layouts. Evaluate the external resistor network requirements for setting precise charge current and termination thresholds against system constraints.

Battery Chargers Part Context

This part belongs to the LT3650 family of dual-cell battery chargers manufactured by Analog Devices. The family offers variations in termination voltage and package type to suit different cell configurations. The IMSE designation specifies the industrial temperature grade and the MSOP-EP physical footprint. This series is engineered to replace discrete charging solutions by integrating power switches and control logic into a single monolithic die.

Battery Chargers Replacement Considerations

Direct substitutes include other LT3650 variants with different termination voltages such as LT3650IMSE-8.2#PBF for 8.2V outputs. Check for equivalent packages like LT3650HMT#PBF if leaded pins are required instead of the exposed pad MSOP. Verify that alternative parts support the same 32V input range and 2A current capability.