LP3470A463DBVR

Supervisors Overview

The LP3470A463DBVR is a voltage supervisory circuit manufactured by Texas Instruments, designed for monitoring power supply integrity in electronic systems. It operates within a maximum supply voltage of 10 V and features a precise reset threshold of 4.63 V with an accuracy of 1%. The device utilizes an SOT-23-5 surface-mount package and provides an active-low, open-drain output signal. It supports a wide operating temperature range from -40°C to +125°C. Key electrical characteristics include a quiescent current of 350 nA and a fixed reset delay time of 619 ms. The component does not include manual reset, watchdog timer, or battery backup switch functionalities.

Supervisors Feature Summary

• Ultra-low-power operation with minimal static current consumption suitable for battery-sensitive applications
• High precision voltage monitoring with 1% reset threshold accuracy to ensure reliable system supervision
• Programmable reset delay capability allowing customization via external capacitor connection
• Active-low open-drain output interface compatible with standard digital logic inputs

Supervisors Applications

• Portable consumer electronics requiring extended battery life
• Industrial control systems operating in extreme temperature environments
• Embedded microcontroller power supply supervision units
• Automotive electronic modules needing robust voltage monitoring

Supervisors Procurement Notes

Verify the specific suffix DBVR indicates tape-and-reel packaging configuration when sourcing components. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the selected variant matches the required 4.63 V threshold specification exactly. Check for end-of-life notifications as older revisions may carry different lifecycle statuses. Validate that the SOT-23-5 footprint aligns with existing PCB layout constraints.

Supervisors Selection Notes

Select this component when precise voltage supervision under low-power conditions is critical. The fixed 619 ms delay suits applications where immediate response is not mandatory but stability is key. Consider the LP3470A series for enhanced accuracy compared to standard LP3470 variants. Evaluate thermal performance requirements given the wide operating temperature range. Ensure the open-drain output can drive the subsequent logic stage without additional pull-up resistors if necessary.

Supervisors Part Context

This part belongs to the LP3470A family of ultra-low-power voltage supervisors from Texas Instruments. It serves as an evolution of the original LP3470 line, offering improved threshold accuracy and broader industrial temperature ratings. The device integrates essential power management functions into a compact five-pin package. It complements other PMIC solutions by providing dedicated reset signaling without complex configuration requirements.

Supervisors Replacement Considerations

LP3470IM5-4.63/NOPB offers similar functionality but differs in package type and operating temperature range. LP3470A365DBVR provides identical form factor and features but with a lower 3.65 V threshold. LP3470A275DBVR shares the same package and features but monitors a 2.75 V level. Verify pin compatibility and threshold voltage alignment before substituting any alternative parts.