ISL9219IRZ

Battery Chargers Overview

The ISL9219IRZ is a fully integrated high input voltage single-cell Li-ion battery charger manufactured by Renesas Electronics Corporation. It operates within an ambient temperature range of -40°C to +85°C and utilizes a 20-lead QFN package measuring 3x4 mm with a height of 0.9 mm. The device accepts input voltages up to 28V, featuring an overvoltage protection threshold typically at 6V to prevent excessive power dissipation. It supports USB electrical specifications, offering configurable charge currents of 100mA or 500mA, and maintains a fixed end-of-charge current of 50mA.

Battery Chargers Feature Summary

• Fully integrated design compliant with USB electrical specifications for standardized charging protocols
• High input voltage capability up to 28V eliminates the need for external overvoltage protection circuits
• Low quiescent current consumption in suspend mode to maximize battery life during standby
• Minimal leakage current when disabled to preserve battery charge when no active source is present

Battery Chargers Applications

• Portable electronic devices requiring USB-powered charging solutions
• Single-cell Lithium-ion battery management systems
• Applications necessitating high input voltage tolerance without external OVP components
• Battery chargers for consumer electronics adhering to USB standards

Battery Chargers Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeit risks. Confirm RoHS compliance status as detailed in official documentation. Check for moisture sensitivity level requirements during storage and handling. Ensure the specific suffix matches the required packaging configuration. Validate that the part number corresponds to the exact pinout and thermal characteristics needed for your PCB layout.

Battery Chargers Selection Notes

Select this component for designs requiring a compact solution for single-cell Li-ion batteries with high input voltage tolerance. It is suitable for applications where minimizing external component count is critical. Consider the 20-QFN package for space-constrained layouts. Evaluate the thermal performance given the exposed pad requirement. Ensure the system input voltage does not exceed the 28V absolute maximum rating.

Battery Chargers Part Context

The ISL9219 belongs to the Intersil (now Renesas) battery charger family, designed for portable electronics. It integrates charge management functions into a small footprint, reducing board space compared to discrete solutions. The series focuses on USB compatibility and high input voltage resilience, addressing common challenges in modern mobile device charging architectures.

Battery Chargers Replacement Considerations

Check for direct substitutes within the ISL921x series or newer Renesas PMICs. Verify pin-to-pin compatibility if replacing on existing boards. Review updated datasheets for any changes in electrical characteristics or package dimensions. Ensure alternative parts support the same 28V input range and USB compliance requirements.