UC1835J

Overview

The UC1835J is a linear regulator controller IC manufactured by Unitrode Corporation. It features a positive adjustable output with a single channel configuration housed in an 8-CDIP package. The device supports a maximum input voltage of 40V and operates within a temperature range of -55°C to 125°C. Typical supply current is specified at 6mA, and it utilizes through-hole mounting for integration into electronic systems.

Feature Summary

• Positive adjustable linear regulation capability
• Single output channel architecture
• Wide operating temperature range suitable for harsh environments

Applications

• Industrial power supply systems
• Military and aerospace electronics
• High-reliability equipment requiring stable voltage control

Procurement Notes

Verify the manufacturer origin carefully, as Unitrode assets were acquired by Texas Instruments. Confirm that the specific part number corresponds to the original Unitrode production run if historical compatibility is required. Ensure the 8-CDIP package type matches the target PCB footprint and that the bipolar analog circuit characteristics align with system design requirements.

Selection Notes

Select this component when a robust, high-temperature linear regulator controller is needed for critical applications. The wide temperature range and bipolar technology make it suitable for demanding environments where standard commercial parts may fail. Consider the through-hole mounting requirement during mechanical design phases.

Part Context

This component belongs to the Unitrode family of power management integrated circuits. Unitrode was a leading developer of analog and mixed-signal chips before its acquisition by Texas Instruments. The UC1835J represents legacy HiRel-grade components designed for durability and performance in specialized industrial and defense sectors.

Replacement Considerations

Check for Texas Instruments equivalents such as the UC3835 series, which shares similar functional architectures. Verify pinout compatibility and electrical specifications against the new candidate to ensure seamless integration without redesigning the surrounding circuitry.