ISL97645AIRZ-TK

Power Management - Specialized Overview

The ISL97645AIRZ-TK is a specialized power management integrated circuit manufactured by Renesas Electronics Corporation, designed for LCD monitor and notebook display applications. It operates within a supply voltage range of 2.7V to 5.5V and features an integrated boost converter capable of delivering up to 20V AVDD with a peak current of 2.6A. The device includes a VCOM amplifier with 30MHz bandwidth and 50V/μs slew rate, supporting outputs up to 50V with 400mA peak current. It functions at switching frequencies of 600kHz or 1.2MHz and is housed in a 24-lead 4x4mm QFN package with exposed pad, rated for operation between -40°C and 85°C.

Power Management - Specialized Feature Summary

• Integrates a high-current boost converter for generating elevated AVDD voltages required by LCD panels.
• Includes a high-speed VCOM amplifier with significant bandwidth and slew rate capabilities for precise panel driving.
• Incorporates internal VON slicing functionality to manage gate drive levels effectively.
• Provides comprehensive protection mechanisms including under-voltage lockout and over-temperature shutdown.

Power Management - Specialized Applications

• LCD monitors (15 inches and larger)
• Notebook displays (up to 16 inches)

Power Management - Specialized Procurement Notes

Verify component authenticity through authorized channels as the part is marked End-of-Life. Confirm that the suffix TK denotes the specific tape-and-reel packaging variant rather than a functional change. Ensure compatibility with existing PCB footprints and thermal requirements before finalizing procurement decisions.

Power Management - Specialized Selection Notes

Select this component when designing systems requiring a combined boost and VCOM solution for mid-to-large size LCD panels. Consider the 24-QFN package constraints for thermal dissipation and layout density. Evaluate the 600kHz versus 1.2MHz frequency options based on external inductor size and efficiency targets.

Power Management - Specialized Part Context

This part belongs to the ISL97645 family of PMICs from Renesas, originally developed by Intersil. It serves as a dedicated driver solution for liquid crystal displays, integrating power conversion and signal amplification into a single compact package to reduce board space and component count compared to discrete solutions.

Power Management - Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the product status is End-of-Life, engineers must consult official Renesas resources for qualified alternatives or design-in new components.