ISL9205IRZ

Battery Chargers Overview

The ISL9205IRZ is a single-cell Li-ion or Li-polymer battery charger IC manufactured by Renesas Electronics Corporation. It operates with an input voltage range up to 6.5V and supports a maximum charge current of 900mA. The device utilizes a standard Constant Current/Constant Voltage (CC/CV) charging profile, featuring programmable charge current via an external resistor. Key electrical parameters include a 4.2V battery pack voltage rating and a supply voltage maximum of 6.5V. It incorporates Thermaguard thermal foldback protection and functions as a linear charger when the AC adapter acts as a voltage source.

Battery Chargers Feature Summary

• Integrates pass element and current sensor for low component count
• Thermaguard thermal foldback prevents overheating
• Supports trickle charging for fully discharged batteries
• Includes NTC interface for temperature monitoring

Battery Chargers Applications

• Single-cell Li-ion battery power management
• Li-polymer battery charging systems
• Portable electronic devices requiring integrated charging solutions

Battery Chargers Procurement Notes

Verify component authenticity through authorized channels due to End-of-Life status. Confirm package integrity upon receipt, as moisture sensitivity level is MSL 3. Ensure compatibility with existing PCB layouts using the 16-QFN(3x3) footprint. Review latest Product Change Notices for any manufacturing site transfers or label updates that may affect traceability.

Battery Chargers Selection Notes

Select this component for designs requiring a compact, integrated solution for single-cell lithium-based batteries. The ISL9205IRZ is suitable where input voltages vary but remain within the 6.5V limit. Consider the 16-QFN package constraints for thermal dissipation. Verify that the required charge current does not exceed the 900mA maximum rating for the specific application environment.

Battery Chargers Part Context

The ISL9205 belongs to the ISL9205 family of integrated single-cell chargers. This family includes variants such as ISL9205A, B, C, and D, which offer different functional options or package configurations. The IRZ suffix denotes the specific tape-and-reel packaging variant within the broader product line managed by Renesas Electronics Corporation.

Battery Chargers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. As the component is marked End-of-Life, engineers should consult official Renesas resources for potential obsolescence management strategies or alternative family members.