FSL156MRISN

Power Supply Controllers, Monitors Overview

The FSL156MRISN is a Green-Mode Fairchild Power Switch AC/DC converter manufactured by onsemi. It integrates a high-voltage MOSFET and control circuitry for offline power supply applications. The device operates in a DIP-8 through-hole package with non-isolated insulation. Key electrical parameters include a maximum output power of 40 W, an input voltage range from 13 V to 23 V, and a switching frequency of 67 kHz. It supports a maximum duty cycle of 73% and draws a typical operating supply current of 1.5 mA. The component utilizes Silicon technology and functions within a temperature range of -40°C to +125°C.

Power Supply Controllers, Monitors Feature Summary

• Integrates Green-Mode technology for enhanced efficiency in active mode
• Combines high-voltage MOSFET with integrated controller for compact design
• Supports through-hole installation for robust mechanical mounting

Power Supply Controllers, Monitors Applications

• Offline AC/DC power conversion systems
• General-purpose power supply designs
• Consumer electronics power adapters

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'MRISN' against official datasheets to confirm pinout and functional equivalence, as variations exist within the FSL156 series. Confirm RoHS compliance status via manufacturer documentation. Check for End-of-Life (EOL) notices or obsolescence warnings prior to procurement, as availability may be limited. Ensure the DIP-8 package matches the target PCB footprint requirements.

Power Supply Controllers, Monitors Selection Notes

Select this component for designs requiring a monolithic solution for low-to-medium power AC/DC conversion. The integrated nature reduces external component count compared to discrete solutions. Verify that the 67 kHz switching frequency aligns with EMI constraints. Ensure the thermal management strategy accommodates the specified operating temperature range and power dissipation levels for the intended application load.

Power Supply Controllers, Monitors Part Context

The FSL156MRISN belongs to the Fairchild Power Switch (FPS) family, which integrates a high-voltage power MOSFET with a current-mode controller. This family is designed to simplify the design of offline switch-mode power supplies. The Green-Mode feature optimizes performance under light-load conditions, improving overall system efficiency. The part is categorized under PMIC - Power Management ICs within the broader AC/DC converter product line.

Power Supply Controllers, Monitors Replacement Considerations

Consult official cross-reference lists for verified substitutes. Generic FPS replacements may differ in pinout or electrical characteristics. Verify compatibility with existing gate drive requirements and thermal constraints when considering alternative part numbers.