NCP1361EABAYSNT1G

AC DC Converters, Offline Switchers Overview

The NCP1361EABAYSNT1G is a low-power offline constant current and constant voltage primary side PWM current-mode controller manufactured by onsemi. Designed for flyback topologies, it supports output powers up to 20 W with a single output. The device operates within a switching frequency range of 80 kHz to 110 kHz and features a startup voltage of 18 V with a supply voltage range of 6.6 V to 28 V. It functions reliably across an extended temperature range from -40 °C to +125 °C TJ. The component utilizes a TSOP-6 surface-mount package and draws a typical operating supply current of 1.7 mA.

AC DC Converters, Offline Switchers Feature Summary

• Implements primary-side regulation for constant current and constant voltage applications without requiring optocouplers or secondary-side feedback components.
• Integrates comprehensive protection mechanisms including cycle-by-cycle current limiting, overload protection, overvoltage protection, and short-circuit protection.
• Optimized for low power consumption in standby modes through advanced control algorithms suitable for energy-efficient offline power supplies.

AC DC Converters, Offline Switchers Applications

• Low power offline AC/DC adapters
• Constant current LED drivers
• Standby power supplies for consumer electronics

AC DC Converters, Offline Switchers Procurement Notes

Verify the complete part number including suffixes against official manufacturer documentation to ensure correct packaging and tape/reel specifications. Confirm RoHS compliance status and moisture sensitivity level requirements prior to assembly. Cross-reference datasheet revisions to validate pinout compatibility and electrical characteristics for your specific design implementation.

AC DC Converters, Offline Switchers Selection Notes

Select this controller for designs requiring simplified bill of materials through primary-side regulation. Ensure the transformer design accommodates the specified 80 kHz to 110 kHz switching frequency range. Verify that the input voltage range aligns with the 6.6 V to 28 V Vcc supply requirements during operation and startup phases.

AC DC Converters, Offline Switchers Part Context

This component belongs to the NCP1361 series of offline switchers. It serves as a specialized solution for cost-sensitive and space-constrained power applications where isolation feedback is undesirable. The series focuses on reducing external component count while maintaining stable performance across varying line and load conditions.

AC DC Converters, Offline Switchers Replacement Considerations

NCP1361AABAYSNT1G is listed as a substitute option within the same family.