NCP1341A1D1R2G

Description：IC OFFLINE SWITCH FLYBACK 9SOIC
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:3ae378a98430 Category: AC DC Converters, Offline Switchers Brand: onsemi

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Product introduction

NCP1341A1D1R2G is listed in the AC DC Converters, Offline Switchers range at ChipApex. The manufacturer field lists onsemi. Its product description is IC OFFLINE SWITCH FLYBACK 9SOIC. Review the specifications below when checking this part for your BOM.

AC DC Converters, Offline Switchers specifications for NCP1341A1D1R2G

Description：IC OFFLINE SWITCH FLYBACK 9SOIC
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)
Output Isolation：Isolated
Internal Switch(s)：No
Voltage - Breakdown：-
Topology：Flyback
Voltage - Start Up：17 V
Voltage - Supply (Vcc/Vdd)：9V ~ 28V
Duty Cycle：75%
Frequency - Switching：360kHz
Fault Protection：Current Limiting, Over Load, Over Power, Over Temperature, Over Voltage
Control Features：-
Operating Temperature：-40°C ~ 125°C (TJ)
Package / Case：10-SOP (0.154", 3.90mm Width), 9 Leads
Supplier Device Package：9-SOIC
Mounting Type：Surface Mount
Grade：-
Qualification：-
Power (Watts)：-

AC DC Converters, Offline Switchers datasheet and documents for NCP1341A1D1R2G

NCP1341A1D1R2G

AC DC Converters, Offline Switchers Overview

The NCP1341A1D1R2G is a high-voltage quasi-resonant controller for flyback AC/DC converters. It operates from a 9 V to 28 V supply with a quiescent current of 1 mA. The device supports a switching frequency up to 500 kHz and functions within a temperature range of -40 °C to +125 °C. Packaged in an SOIC-9NB surface-mount format, it provides one output channel.

AC DC Converters, Offline Switchers Feature Summary

Integrated active X2 capacitor discharge capability for low no-load power consumption
Valley locking circuitry ensuring stable valley switching operation
Minimum peak current modulation (MPCM) for fast frequency reduction at light loads
Non-dissipative over-power protection (OPP) maintaining constant maximum output power

AC DC Converters, Offline Switchers Applications

Medium or high power AC-DC adapters
Ultra-high density AC-DC adapters
USB PD standard compliant chargers
Notebook adapters
Flat panel TV SMPS

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix D1R2G against official datasheets to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status through manufacturer documentation before integration. Ensure design compatibility with the SOIC-9NB footprint and thermal requirements for the specified operating temperature range.

AC DC Converters, Offline Switchers Selection Notes

Select this component for designs requiring integrated X2 discharge and non-dissipative OPP. It suits applications needing efficient light-load performance via MPCM and skip modes. Verify that the 9V to 28V startup voltage aligns with the auxiliary winding design. Ensure the SOIC-9NB package fits the PCB layout constraints.

AC DC Converters, Offline Switchers Part Context

Part of the NCP1341 series designed for offline power conversion. It replaces older controllers like the NCP1249 by offering enhanced efficiency features. The device integrates high-voltage startup and multiple protection mechanisms into a single compact package for modern adapter designs.