LP3470IM5-2.83/NOPB

Supervisors Overview

The LP3470IM5-2.83/NOPB is a voltage supervisory circuit manufactured by Texas Instruments, designed for monitoring single power supply rails. It features an active-low open-drain output and operates within a maximum supply voltage of 5.5 V. The device provides a precise reset threshold of 2.83 V with 1% accuracy. It includes a fixed reset delay time of 2 ms and consumes a typical operating supply current of 16 uA. The component is housed in a SOT-23-5 package and supports surface-mount installation. It functions without manual reset or watchdog timer capabilities.

Supervisors Feature Summary

• Provides active-low open-drain reset signal generation based on monitored input voltage levels
• Features high precision reset threshold accuracy to ensure reliable system initialization
• Designed for low-power applications with minimal operating supply current consumption
• Integrates programmable reset delay timing for controlled power-up sequencing

Supervisors Applications

• Monitoring microprocessor and microcontroller power supplies
• Supervising battery-powered electronic systems
• Ensuring correct startup sequences in embedded circuits
• Protecting logic circuits from undervoltage conditions

Supervisors Procurement Notes

Verify the specific suffix designation to confirm the exact reset threshold voltage matches the design requirement. Confirm the package type corresponds to the intended PCB footprint. Check the operational temperature range specifications against the environmental conditions of the target application. Ensure the active-low output configuration aligns with the receiving logic gate inputs. Review the manufacturer's lifecycle status for long-term availability considerations.

Supervisors Selection Notes

Select this component when a single-channel voltage supervision with high accuracy is required. Consider the 16 uA quiescent current for battery-sensitive designs. Evaluate the 2 ms delay duration against the minimum power-up time requirements of the downstream components. Compare the SOT-23-5 package dimensions with available board space constraints. Assess the need for active-low outputs versus other logic families.

Supervisors Part Context

This part belongs to the LP3470 series of tiny power-on-reset circuits from Texas Instruments. The series offers various threshold voltages to accommodate different standard rail levels. The IM5 suffix indicates the industrial temperature grade and SOT-23-5 packaging format. These devices are commonly used in portable electronics and industrial control systems where space and power efficiency are critical.

Supervisors Replacement Considerations

Consult official documentation for direct substitutes such as the LP3470M5-2.83 variant. Verify compatibility regarding threshold voltage tolerance and package pinout alignment. Ensure replacement parts maintain the same active-low output polarity and delay characteristics.