UC2843AQD8RQ1

Power Supply Controllers, Monitors Overview

The UC2843AQD8RQ1 is an automotive-grade current-mode PWM controller manufactured by Texas Instruments. It operates within a supply voltage range of 10 V to 36 V and supports switching frequencies up to 500 kHz. The device features a maximum duty cycle of 100% and provides a peak output drive current of 1 A. It is housed in an 8-pin SOIC package with an operating temperature range from -40°C to +125°C.

Power Supply Controllers, Monitors Feature Summary

• AEC-Q100 qualified for automotive applications
• Current-mode control architecture
• Integrated high-current driver

Power Supply Controllers, Monitors Applications

• Automotive DC-DC converters
• Boost converter topologies
• Flyback power supplies

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 qualification status. Confirm the 'D8R' suffix indicates the SOIC-8 package and reel packaging format. Ensure the component meets the required thermal performance specifications for the intended automotive environment before finalizing procurement.

Power Supply Controllers, Monitors Selection Notes

Select this component for designs requiring automotive reliability standards. Compare against non-qualified UC2843 variants if cost reduction is prioritized over AEC-Q100 certification. Verify that the 1 A output drive capability matches the gate charge requirements of the external MOSFETs in the target circuit design.

Power Supply Controllers, Monitors Part Context

This part belongs to the UCx84x family of current-mode PWM controllers. The UC2843 variant specifically offers a 100% maximum duty cycle, distinguishing it from other family members like the UC2842 which has a lower limit. The 'AQ' designation indicates automotive grade quality and extended temperature capabilities compared to standard industrial versions.

Power Supply Controllers, Monitors Replacement Considerations

UC2843AQD8RG4Q1