UCC1803J883B

DC DC Switching Controllers Overview

The UCC1803J883B is a low-power BiCMOS current-mode PWM controller manufactured by Texas Instruments. It operates with a supply voltage range of 3.6V to 12V and supports switching frequencies up to 1 MHz. The device features a maximum duty cycle of 99% and includes internal soft-start and fault protection mechanisms. Designed for high reliability, it is housed in a MIL-883B ceramic DIP-8 package.

DC DC Switching Controllers Feature Summary

• Low-power BiCMOS technology for efficient operation
• Current-mode PWM control architecture
• Internal soft-start and fault protection circuits
• MIL-883B certified ceramic packaging

DC DC Switching Controllers Applications

• High-reliability flyback power supplies
• Military aerospace power systems
• Industrial isolated DC-DC converters

DC DC Switching Controllers Procurement Notes

Verify the specific suffix J883B confirms MIL-883B qualification status directly from the manufacturer's official documentation. Ensure the ceramic DIP-8 package matches system thermal and mechanical requirements. Confirm that the 3.6V to 12V supply range aligns with the target application's input specifications before procurement.

DC DC Switching Controllers Selection Notes

Select this component when military-grade reliability and low quiescent current are critical. The 1 MHz switching capability allows for smaller passive components compared to lower-frequency alternatives. The current-mode control offers improved line regulation and inherent overcurrent protection suitable for demanding environments.

DC DC Switching Controllers Part Context

This part belongs to the UCC1803 family of low-power PWM controllers. The J883B designation specifically indicates compliance with MIL-883B standards, distinguishing it from commercial variants. It serves as a robust solution for applications requiring stringent environmental and performance qualifications.

DC DC Switching Controllers Replacement Considerations

Check for UCC1803 variants with different suffixes for commercial grade options if MIL-883B certification is not required. Verify pin compatibility and electrical specifications against other current-mode PWM controllers from Texas Instruments or alternative manufacturers.