ISL9205CIRZ-T

Battery Chargers Overview

The ISL9205CIRZ-T is an integrated single-cell Li-ion or Li-polymer battery charger manufactured by Renesas Electronics Corporation. It operates with input voltages as low as 2.5V and up to 6.5V, supporting both linear and pulse charging modes depending on the AC adapter characteristics. The device implements a standard Constant Current/Constant Voltage (CC/CV) profile with programmable charge current via an external resistor at the IREF pin. Key features include Thermaguard thermal foldback protection, NTC temperature monitoring interface, and a programmable safety timer. The component is housed in a 16-QFN package.

Battery Chargers Feature Summary

• Integrated linear and pulse charging capability for single-cell Li-ion/polymer batteries
• Thermaguard thermal foldback protection prevents overheating during high-temperature operation
• NTC interface enables external temperature monitoring for battery and ambient conditions
• Programmable charge current and end-of-charge termination via external components

Battery Chargers Applications

• Electronic Toll Collection (ETC) systems
• GNSS-enabled devices
• Portable consumer electronics requiring single-cell Li-ion charging

Battery Chargers Procurement Notes

Verify component authenticity through authorized distributors due to discontinuation status. Confirm package marking and date codes against official datasheets. Check for RoHS compliance documentation. Ensure storage conditions meet moisture sensitivity level requirements before reflow soldering.

Battery Chargers Selection Notes

Select this component for applications requiring low input voltage operation down to 2.5V. Suitable for designs needing integrated thermal protection and programmable charging profiles. Consider package availability and lead times given the obsolete status. Evaluate alternative models if long-term supply assurance is critical.

Battery Chargers Part Context

The ISL9205 family includes variants such as ISL9205A, B, C, D offering different feature sets. The CIRZ suffix indicates specific package and temperature grade options within the Renesas portfolio. This part belongs to the broader line of single-cell battery management solutions designed for cost-sensitive portable applications.

Battery Chargers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for potential obsolescence alternatives.