NCP1246BD100R2G

Description：IC OFFLINE SWITCH FLYBACK 7SOIC
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:26b172900944 Category: AC DC Converters, Offline Switchers Brand: onsemi

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Product introduction

NCP1246BD100R2G 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 7SOIC. Review the specifications below when checking this part for your BOM.

AC DC Converters, Offline Switchers specifications for NCP1246BD100R2G

Description：IC OFFLINE SWITCH FLYBACK 7SOIC
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Cut Tape (CT)
Output Isolation：Isolated
Internal Switch(s)：No
Voltage - Breakdown：-
Topology：Flyback
Voltage - Start Up：12 V
Voltage - Supply (Vcc/Vdd)：8.9V ~ 28V
Duty Cycle：80%
Frequency - Switching：100kHz
Fault Protection：Current Limiting, Over Load, Over Power, Over Temperature, Over Voltage
Control Features：-
Operating Temperature：-40°C ~ 150°C (TJ)
Package / Case：8-SOIC (0.154", 3.90mm Width), 7 Leads
Supplier Device Package：7-SOIC
Mounting Type：Surface Mount
Grade：-
Qualification：-
Power (Watts)：-

AC DC Converters, Offline Switchers datasheet and documents for NCP1246BD100R2G

NCP1246BD100R2G

AC DC Converters, Offline Switchers Overview

The NCP1246BD100R2G is a fixed frequency current mode PWM controller from onsemi, designed for offline flyback converters. It operates at a switching frequency of 65 kHz and supports a maximum duty cycle of 80%. The device features a wide supply voltage range up to 28 V and includes integrated high-voltage startup. Key protection mechanisms include cycle-by-cycle current limiting, output overvoltage protection, and open-loop detection. It is housed in a compact SOIC-7 surface-mount package and is rated for operation across an extended temperature range.

AC DC Converters, Offline Switchers Feature Summary

Fixed frequency current mode control architecture for simplified design
Integrated high-voltage startup circuit reducing external component count
Comprehensive protection suite including OVP, cycle-by-cycle current limit, and open-loop detection

AC DC Converters, Offline Switchers Applications

Offline flyback power supplies
AC/DC converter designs
Low power adapter applications

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix against official datasheets to confirm frequency and package variations. Confirm RoHS compliance status through manufacturer documentation. Check for obsolescence notices or lifecycle changes prior to finalizing procurement plans.

AC DC Converters, Offline Switchers Selection Notes

Select this component for flyback topologies requiring fixed frequency operation. Ensure the input voltage range aligns with the internal startup thresholds. Validate thermal performance within the specified operating temperature limits for the target application environment.

AC DC Converters, Offline Switchers Part Context

This part belongs to the NCP1246 series of current mode controllers. It shares architectural similarities with other members like the NCP1246BD065R2G but differs in specific operational parameters. The series targets cost-effective AC/DC conversion solutions.