R2J20052NS#W0

Overview

The R2J20052NS#W0 is a battery management IC designed for lithium-ion and lithium-polymer applications. It supports a maximum charge current of 2.5A with programmable constant charging. The device operates within an industrial temperature range of -30°C to 85°C and includes over-temperature fault protection. It is packaged in an 18-DFN (3.4x4.5) format.

Feature Summary

• Integrated fault protection including over-temperature monitoring
• Programmable constant charge current capability
• Optimized for lithium-ion and lithium-polymer battery chemistries

Applications

• Lithium-ion battery management systems
• Lithium-polymer battery charging circuits
• Industrial grade power management modules

Procurement Notes

Verify the specific suffix #W0 against official Renesas documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with the target PCB footprint, specifically the 18-DFN dimensions. Confirm that the operating temperature range meets the environmental requirements of the final assembly. Cross-reference the part number with the manufacturer's latest datasheet to validate active status and any recent design changes.

Selection Notes

Select this component when designing for lithium-based battery packs requiring integrated charge control and thermal protection. The industrial temperature rating makes it suitable for demanding environments. Consider the 2.5A maximum current limit relative to the battery cell specifications. The DFN package offers a compact solution for space-constrained designs.

Part Context

This part belongs to Renesas Electronics' portfolio of power management integrated circuits. It serves as a specialized solution for battery charging and monitoring tasks. The series focuses on providing reliable charge management with built-in safety features for portable and industrial electronic devices utilizing rechargeable lithium cells.

Replacement Considerations

Consult official Renesas substitution guides for verified alternatives. Generic equivalents may not match the specific thermal protection thresholds or programming characteristics. Verify pinout compatibility before considering any cross-brand replacements.