ISL6840IUZ-T

Power Supply Controllers, Monitors Overview

The ISL6840IUZ-T is an adjustable frequency, low power Pulse-Width Modulating (PWM) controller from the Renesas ISL684x family. It utilizes an advanced BiCMOS design and is pin-compatible with the industry-standard 384x series. The device operates within a supply voltage range of 7.5V to 14V and draws a typical supply current of 5.5 mA. It supports boost and flyback converter topologies and functions reliably across an operating temperature range of -40°C to 105°C (TA). Packaged in an 8-MSOP format, it serves as a robust solution for industrial power system applications.

Power Supply Controllers, Monitors Feature Summary

• Advanced BiCMOS design offering significantly improved performance over legacy controllers
• Pin-compatible with the industry-standard 384x family for easy upgrades
• Supports both boost and flyback switching converter topologies

Power Supply Controllers, Monitors Applications

• Industrial Power Systems

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging when ordering. Confirm the manufacturer is Renesas Electronics Corporation, formerly Intersil. Check for recent discontinuation notifications, as product availability may be limited. Ensure the 8-MSOP package matches your PCB footprint requirements before finalizing procurement.

Power Supply Controllers, Monitors Selection Notes

Select this component when upgrading from standard 384x controllers without redesigning the PCB layout. It is suitable for applications requiring low power consumption and adjustable frequency PWM control. Consider the 7.5V to 14V supply range and -40°C to 105°C operating temperature limits during thermal and electrical design phases.

Power Supply Controllers, Monitors Part Context

This part belongs to the ISL684x family, which includes models ISL6840 through ISL6844. These are adjustable frequency, low power PWM controllers designed for industrial use. The ISL6840 specifically targets boost and flyback configurations. The family shares common architectural benefits while offering slight variations in internal parameters.

Power Supply Controllers, Monitors Replacement Considerations

Direct pin-compatible replacements include other members of the 384x family, though performance characteristics will differ. Verify if alternative Renesas parts like the ISL6841 or ISL6842 meet specific topology needs. No other public substitute part numbers are confirmed.