VIPER26HN

Overview

The VIPER26HN is an AC/DC converter from the VIPerPlus family, designed for offline high-voltage applications. It features a fixed switching frequency of 115 kHz and supports a maximum output voltage of 800 V. The device operates within a supply voltage range of 11.5 V to 23.5 V, with a maximum duty cycle of 80%. It delivers up to 18 W of output power and draws a typical operating supply current of 3.5 mA. The component is housed in a DIP-7 package and functions reliably across a temperature range of -40°C to +150°C.

Feature Summary

• Integrates an 800 V avalanche rugged power section for robust operation.
• Includes PWM operation with frequency jittering to reduce electromagnetic interference.
• Features adjustable current limiting with onboard soft-start capability.
• Provides comprehensive protection including thermal shutdown with hysteresis and auto-restart.

Applications

• Non-isolated flyback topology power supplies
• Universal input mains range adapters (90-264 V AC)
• Single-output 12 V power systems

Procurement Notes

Verify the specific package type and pin configuration against the official datasheet before integration. Confirm that the 800 V rating aligns with your circuit's voltage requirements. Ensure the DIP-7 footprint matches your PCB layout. Check for RoHS compliance status if required by your manufacturing standards. Validate the operating temperature range against your environmental conditions.

Selection Notes

Select this component for designs requiring a fixed frequency solution with integrated high-voltage capabilities. It is suitable for applications needing low standby power and built-in EMI reduction through jittering. Consider the 18 W power limit when determining load requirements. The DIP-7 package is appropriate for through-hole mounting strategies. Evaluate the need for its specific protection features against other available options.

Part Context

This part belongs to the VIPerPlus series, which focuses on energy-saving offline converters. It shares architectural similarities with other members like the VIPER26LDTR but differs in package and specific electrical parameters. The series is characterized by high integration levels, reducing external component counts. It targets cost-sensitive applications requiring reliable AC/DC conversion without complex control loops.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by comparing pinouts and electrical specifications carefully. Consult manufacturer resources for potential cross-reference information if direct replacements are needed.