ISL6842IB

Power Supply Controllers, Monitors Overview

The ISL6842IB is an offline switcher controller from the ISL6842 series, designed for multi-topology power supply applications. It operates with a fixed switching frequency of 2 MHz and supports a maximum duty cycle of 96%. The device features a single output capable of sourcing up to 1 A of drive current, with a maximum output voltage rating of 20.3 V. It functions within an industrial temperature range from -40°C to +105°C and is housed in an 8-lead SOIC narrow package.

Power Supply Controllers, Monitors Feature Summary

• Supports multiple converter topologies including flyback, forward, and half-bridge configurations.
• Integrates current mode PWM control with a high maximum duty cycle for efficient transformer reset.
• Includes undervoltage lockout (UVLO) circuitry to ensure stable startup and shutdown behavior.

Power Supply Controllers, Monitors Applications

• Offline flyback power supplies
• Forward converter designs
• Half-bridge power converters

Power Supply Controllers, Monitors Procurement Notes

Verify component authenticity through authorized channels as this part is listed as End-of-Life by the manufacturer. Confirm that the specific suffix matches the required package type and that any ordering suffixes do not alter functional specifications without explicit datasheet confirmation. Check for obsolescence notices or last-time buy deadlines before finalizing procurement plans.

Power Supply Controllers, Monitors Selection Notes

Select this controller when designing offline power stages requiring flexible topology support and high-frequency operation at 2 MHz. Ensure the design accommodates the 8-lead SOIC package constraints and verify that the input voltage range aligns with the UVLO thresholds specified in the official documentation. Consider thermal management requirements given the operating temperature limits.

Power Supply Controllers, Monitors Part Context

The ISL6842IB belongs to the ISL6842 family of offline switch controllers manufactured by Renesas Electronics Corporation (formerly Intersil). This series is engineered for versatile offline power conversion needs, offering a balance of performance and integration for various isolated power supply architectures.

Power Supply Controllers, Monitors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Renesas official resources for potential cross-reference options or updated replacements for this end-of-life component.