LTC1731EMS8-8.2#TRPBF

Battery Chargers Overview

The LTC1731EMS8-8.2#TRPBF is a complete constant-current/constant-voltage linear charger controller designed for two-cell lithium-ion (Li-Ion) batteries. Manufactured by Analog Devices Inc., this CMOS device operates within an ambient temperature range of -40°C to 85°C and is housed in an 8-lead MSOP package. It supports multi-chemistry battery types, including Lithium Polymer, and features programmable constant charging current. The component is part of the active LTC1731 series, providing precise charge management for portable applications requiring reliable power replenishment.

Battery Chargers Feature Summary

• Complete constant-current/constant-voltage linear charger controller architecture
• Optimized specifically for two-cell lithium-ion battery configurations
• Supports multi-chemistry battery types including Lithium Polymer
• Features programmable constant charging current capability

Battery Chargers Applications

• Two-cell lithium-ion battery packs in portable electronics
• Lithium Polymer battery management systems
• Consumer devices requiring linear charge control
• Industrial equipment with dual-cell Li-Ion power sources

Battery Chargers Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the operating temperature grade matches your application requirements, as variants exist with different thermal ratings. Ensure compatibility with the target battery cell count, as this controller is specified for two cells. Cross-reference the manufacturer's latest datasheet for any updates on pinout or electrical characteristics before finalizing procurement.

Battery Chargers Selection Notes

Select this component when designing for two-cell lithium-ion or lithium polymer batteries requiring linear regulation. Consider the 8-MSOP package constraints for PCB layout and thermal dissipation. Verify that the programmable current settings align with the battery's maximum charge rate specifications. Evaluate the -40°C to 85°C operating range against environmental conditions. This controller is suitable for applications where efficiency is secondary to cost and simplicity compared to switching alternatives.

Battery Chargers Part Context

This part belongs to the LTC1731 family from Analog Devices Inc., which includes variants like the LTC1731-8.4. The series provides integrated solutions for managing rechargeable battery cycles. The EMS8 designation refers to the 8-lead MSOP package style. These controllers are widely used in portable technology sectors where reliable and compact charge management is essential for system longevity and safety.

Battery Chargers Replacement Considerations

Direct substitutes include other parts within the LTC1731 series, such as the LTC1731-8.4, depending on voltage threshold requirements. Verify pin-to-pin compatibility and electrical parameter alignment before substitution. Consult Analog Devices documentation for recommended alternative components if the exact part number is unavailable.