ISL6294AIRZ-T

Battery Chargers Overview

The ISL6294AIRZ-T is a fully integrated high input voltage single-cell Li-ion battery charger from Renesas. It accepts an input voltage up to 28V and disables when exceeding the typical 6.8V overvoltage protection threshold. The device features 1% voltage accuracy, programmable charge current, and programmable end-of-charge current via external resistors. It includes thermal foldback for protection and trickle charging for deeply discharged batteries (below typically 2.55V). Leakage current is less than 1µA when disabled. Operating ambient temperature ranges from -40°C to +85°C.

Battery Chargers Feature Summary

• Fully integrated charger with internal pass element and current sensor, eliminating the need for external blocking diodes.
• Supports high input voltages up to 28V while providing overvoltage protection at approximately 6.8V.
• Includes internal thermal foldback function to prevent thermal failure during operation.
• Provides power presence and charge status indications through dedicated open-drain output pins.

Battery Chargers Applications

• Mobile Phones
• Bluetooth Devices
• PDAs
• MP3 Players
• Stand-Alone Chargers

Battery Chargers Procurement Notes

Verify the specific suffix 'AIRZ-T' against official Renesas documentation to confirm package type, tape-and-reel configuration, and industrial temperature grade (-40°C to +85°C). Ensure the component status is checked as obsolete or active in current catalogs before procurement planning.

Battery Chargers Selection Notes

Select this component for single-cell Li-ion applications requiring high input voltage tolerance without external OVP circuits. It is suitable for designs needing low component count and cost due to integrated sensing. Verify that the programmable current settings align with the target battery specifications and that the DFN or SOIC package fits the PCB layout constraints.

Battery Chargers Part Context

The ISL6294 belongs to the Renesas Intersil line of battery management solutions. It is designed as a cost-effective alternative to lower-voltage chargers by integrating high-voltage handling capabilities directly into the IC, simplifying the bill of materials for portable electronic devices.

Battery Chargers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Renesas technical support for cross-reference recommendations if this obsolete part requires replacement.