ISL9519IRTZ-T

Battery Chargers Overview

The ISL9519IRTZ-T is a highly integrated narrow VDC system voltage regulator and battery charger controller manufactured by Renesas Electronics. It operates with an adapter voltage range of +4.5V to +22V and supports battery charger currents exceeding 8A. The device features ±0.5% system voltage accuracy and ±3% accurate input and charge current limits across temperatures from -10°C to +100°C. Operating parameters are programmable via an SMBus interface, including 11-bit max system voltage, 7-bit min system voltage, and 6-bit charge/adapter current settings.

Battery Chargers Feature Summary

• Integrates narrow VDC regulation and battery charging in a single controller
• Supports trickle charging for deeply discharged batteries while maintaining system voltage
• Includes automatic adapter in-rush and isolation FET control
• Provides fast system-load transient response and battery short circuit protection

Battery Chargers Applications

• Notebook computer power management systems
• Portable electronic devices requiring narrow VDC regulation
• Battery-powered systems with AC adapter input

Battery Chargers Procurement Notes

Verify the specific suffix 'IRTZ-T' against official Renesas documentation to confirm tape-and-reel packaging and industrial temperature grade. Confirm end-of-life status as the base ISL9519 series is marked NRND. Ensure compatibility with required external MOSFETs and passive components for the target design.

Battery Chargers Selection Notes

Select this component for designs requiring precise system voltage regulation where the system rail voltage equals the battery voltage rather than the adapter voltage. Consider the SMBus interface for dynamic parameter adjustment. Evaluate the need for external FETs for in-rush and isolation control based on system requirements.

Battery Chargers Part Context

The ISL9519 belongs to the Intersil/Renesas portfolio of power management ICs designed for notebook and portable applications. It replaces older discrete solutions by integrating regulation and charging functions. The part is part of a family that includes variants like ISL9519C and ISL9519RHRTZ, differing primarily in packaging and temperature ratings.

Battery Chargers Replacement Considerations

The ISL95522A is listed as a replacement product for the ISL9519. Verify functional compatibility and pinout differences before substitution.