UC2842ADTR

Power Supply Controllers, Monitors Overview

The UC2842ADTR is a current-mode PWM controller manufactured by Texas Instruments, designed for high-performance switching power supplies. It operates within a supply voltage range of 12 V to 28 V and supports Boost, Flyback, and Forward topologies. The device features a single output capable of sourcing 200 mA with a maximum duty cycle of 100%. It functions at a switching frequency of 500 kHz, utilizing an SOIC-14 package. The component ensures reliable operation across a temperature range of -40°C to +85°C.

Power Supply Controllers, Monitors Feature Summary

• Implements current-mode control architecture for precise regulation and simplified compensation.

Power Supply Controllers, Monitors Applications

• DC-to-DC converter designs
• Offline flyback converters
• Forward converter applications

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'ADTR' against official Texas Instruments documentation to confirm the exact package variant and tape-and-reel specifications. Ensure compatibility with the target PCB footprint for the SOIC-14 package. Cross-reference the RoHS status and lead-free compliance details directly from the manufacturer's datasheet before finalizing procurement orders.

Power Supply Controllers, Monitors Selection Notes

Select this component when a single-output current-mode controller is required for isolated or non-isolated topologies. It is suitable for designs needing up to 100% duty cycle capability. Consider the SOIC-14 package constraints and the 200 mA output drive strength relative to the external MOSFET gate requirements. Verify thermal performance within the specified industrial temperature range.

Power Supply Controllers, Monitors Part Context

This part belongs to the UC2842A series of current-mode PWM controllers. It serves as a pin-compatible improvement over earlier generations, offering enhanced startup characteristics and robust protection features. The series is widely utilized in general-purpose power supply applications requiring efficient energy conversion and stable voltage regulation under varying load conditions.

Power Supply Controllers, Monitors Replacement Considerations

Consult official substitution guides for compatible alternatives such as the UC2842AN or UC2842ADM. Verify pinout compatibility and electrical parameter alignment before replacing the original component in existing circuit designs.

Power Supply Controllers, Monitors FAQ

What is the maximum duty cycle supported by the UC2842ADTR?

The device supports a maximum duty cycle of 100%.

Which packaging format does the UC2842ADTR utilize?

It is housed in an SOIC-14 surface-mount package.