ISL6294IRZ-T

Battery Chargers Overview

The ISL6294IRZ-T is a fully integrated high input voltage single-cell Li-ion battery charger from Renesas. It supports an input voltage up to 28V and includes an internal overvoltage protection threshold typically at 6.8V. The device implements a standard CC/CV charging profile with 1% voltage accuracy. Charge current and end-of-charge current are programmable via external resistors. It features thermal foldback for protection and trickle charging for deeply discharged batteries (below 2.55V). Leakage current is less than 1µA when disabled. It operates within an ambient temperature range of -40°C to +85°C and is available in 8-lead 2mm x 3mm DFN and SOIC packages.

Battery Chargers Feature Summary

• Fully integrated solution for single-cell Li-ion/Polymer batteries with no external blocking diode required
• High input voltage capability up to 28V with internal overvoltage protection
• Programmable charge and end-of-charge currents using external resistors
• Internal thermal foldback function prevents thermal failure

Battery Chargers Applications

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

Battery Chargers Procurement Notes

Verify the specific suffix 'IRZ-T' against official Renesas documentation to confirm package type, tape-and-reel status, and RoHS compliance. Ensure the component matches the 8-lead DFN or SOIC form factor as specified in the datasheet. Confirm that the part number corresponds to the active or obsolete status indicated in current manufacturer catalogs before procurement.

Battery Chargers Selection Notes

Select this component for designs requiring high input voltage tolerance up to 28V without external OVP circuits. It is suitable for space-constrained handheld applications due to its low component count and small footprint. Consider the programmable current limits and thermal management requirements based on the specific battery chemistry and charging profile needs.

Battery Chargers Part Context

The ISL6294 belongs to Renesas's portfolio of cost-effective battery management solutions. It is designed to simplify charger design by integrating the pass element and current sensor. The IRZ-T designation typically indicates a specific packaging and reel configuration for surface-mount assembly, aligning with the 8-lead DFN or SOIC options listed in the product family.

Battery Chargers Replacement Considerations

Consult official Renesas cross-reference tools for verified substitutes. Generic equivalents may not match the 28V input rating or specific thermal foldback characteristics. Verify pin compatibility and electrical parameters if considering alternative manufacturers.