UC2730N

Overview

The UC2730N is a thermal monitor integrated circuit manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features an open-drain output configuration. The device provides temperature monitoring with a typical threshold accuracy of ±1°C. It supports both active-high and active-low alarm outputs for flexible system integration. The component is designed for through-hole mounting in an 8-pin PDIP package, ensuring compatibility with standard PCB layouts.

Feature Summary

• Provides precise on-board temperature monitoring with high threshold accuracy
• Features configurable active-high or active-low alarm output signals
• Includes built-in hysteresis to prevent output oscillation near the trip point

Applications

• Processor and memory thermal protection circuits
• Battery pack temperature monitoring systems
• Industrial equipment over-temperature safety interlocks

Procurement Notes

Verify the specific revision level and manufacturing date code upon order confirmation. Ensure the procurement channel is authorized to guarantee component authenticity and traceability. Confirm that the 8-pin PDIP package variant matches the target PCB footprint requirements before finalizing the purchase agreement.

Selection Notes

Select this component when a dedicated thermal monitor with high accuracy is required instead of using a microcontroller ADC. The UC2730N offers a cost-effective solution for simple over-temperature detection. Consider the open-drain output capability when designing the pull-up resistor network for the alarm signal line.

Part Context

This part belongs to the Texas Instruments thermal management family, specifically designed as a standalone analog circuit for temperature sensing. It complements power management ICs by providing discrete monitoring capabilities without requiring digital interface protocols.

Replacement Considerations

The SN76303 is a documented substitute part number for this component. Verify pinout compatibility and electrical specifications before substitution.