NCP1203D40R2G

AC DC Converters, Offline Switchers Overview

The NCP1203D40R2G is a PWM current-mode controller designed for universal off-line power supplies. It operates at a fixed switching frequency of 40 kHz and supports flyback topology with a maximum duty cycle of 80%. The device features an internal startup circuit requiring a supply voltage between 7.8 V and 16 V, with a start-up threshold of 12.8 V. It is housed in an 8-SOIC package and rated for junction temperatures from -40°C to 125°C.

AC DC Converters, Offline Switchers Feature Summary

• Implements PWM current-mode control architecture for universal off-line applications
• Integrates dedicated standby mode and short-circuit protection mechanisms
• Utilizes SmartMOS technology for enhanced performance and reliability

AC DC Converters, Offline Switchers Applications

• Universal AC-DC offline power supplies
• Flyback converter designs
• Standby power circuits

AC DC Converters, Offline Switchers Procurement Notes

Verify the RoHS status carefully, as source data indicates non-compliance for some variants. Confirm the specific suffix (R2 vs R2G) matches your environmental requirements. Check component availability status, as listings indicate potential discontinuation or end-of-life conditions for certain packaging options.

AC DC Converters, Offline Switchers Selection Notes

Select this component for fixed-frequency flyback designs requiring 40 kHz operation. Ensure the design accommodates the 8-SOIC package dimensions. Verify that the required fault protection modes align with the integrated standby and short-circuit features provided by the controller.

AC DC Converters, Offline Switchers Part Context

This part belongs to the NCP1203 series of PWM current-mode controllers. It shares functional similarities with other members like the NCP1203P40 but differs in package type and specific electrical characteristics. The series is engineered for cost-effective, high-reliability offline power conversion solutions.

AC DC Converters, Offline Switchers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.