UCC2813QDR-1Q1

DC DC Switching Controllers Overview

The UCC2813QDR-1Q1 is a low-power BiCMOS current-mode PWM controller designed for automotive applications. It supports Boost, Flyback, and Forward topologies with a fixed switching frequency of 1 MHz. The device features a maximum duty cycle of 50%, an output voltage of 12.5 V, and an output current capability of 1 A. It operates within a temperature range of -40°C to +125°C and is housed in an SOIC-8 surface-mount package. Key timing characteristics include a rise time of 41 ns and a fall time of 44 ns.

DC DC Switching Controllers Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• Current-mode control architecture for efficient power conversion
• Integrated undervoltage lockout with distinct threshold levels

DC DC Switching Controllers Applications

• Automotive DC-DC converters
• On-board charging systems
• Low-power isolated power supplies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix QDR-1Q1 to confirm the 50% duty cycle limit and SOIC-8 packaging. Ensure compatibility with automotive environmental requirements given the -40°C to +125°C operating range. Confirm that the 1 MHz switching frequency aligns with your electromagnetic interference constraints. Validate that the single-output configuration meets your system design needs before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this component when designing automotive power stages requiring strict duty cycle limitations. The 50% maximum duty cycle makes it suitable for forward and flyback converters where transformer reset is critical. The BiCMOS technology offers a balance of speed and power efficiency. Consider the SOIC-8 package for space-constrained printed circuit board layouts in vehicle electronics.

DC DC Switching Controllers Part Context

This part belongs to the UCC2813 family of low-power economy controllers from Texas Instruments. It is specifically qualified for automotive use, distinguishing it from commercial variants like the UCC2813N-2. The family utilizes BiCMOS processes to achieve high performance at low power consumption levels suitable for modern vehicle electrical architectures.

DC DC Switching Controllers Replacement Considerations

Direct substitutes within the same automotive qualification line include UCC2813QDR-3Q1 and UCC2813QDR-4Q1. Note that these alternatives may differ in maximum duty cycle specifications, such as 75% or 100%. Verify pin compatibility and electrical parameters before swapping.