TPV821R-4LTR

Supervisors Overview

The TPV821R-4LTR is a supervisory circuit manufactured by 3PEAK, designed to monitor power supply voltage levels and provide a reliable power-on reset signal. Housed in a compact SOT-143 package with four terminals, this device ensures system stability by detecting under-voltage conditions. The 'R' suffix indicates the component is supplied in a tape and reel configuration for automated surface-mount assembly. It serves as a critical protection element in electronic circuits requiring precise voltage supervision.

Supervisors Feature Summary

• Monitors power supply voltage levels to detect anomalies
• Generates active power-on reset signals upon voltage stabilization
• Compact SOT-143 package suitable for space-constrained designs

Supervisors Applications

• Power management systems requiring voltage supervision
• Embedded systems needing reliable power-on reset sequences
• Industrial control units monitoring supply integrity

Supervisors Procurement Notes

Verify the specific output polarity and threshold voltage requirements against the official datasheet before procurement. Confirm that the SOT-143 footprint matches the PCB design. Ensure the tape and reel packaging aligns with existing pick-and-place equipment capabilities. Cross-reference the manufacturer's latest documentation for any pinout revisions or environmental compliance updates prior to finalizing orders.

Supervisors Selection Notes

Select this component when a dedicated supervisor IC is required for single-channel voltage monitoring. Consider the SOT-143 package size if board real estate is limited compared to larger SOIC options. Evaluate the reset delay characteristics to ensure compatibility with the target microcontroller or FPGA startup timing requirements. Verify that the operating voltage range covers the intended supply rail variations.

Supervisors Part Context

This part belongs to the TPV821 series of supervisory circuits from 3PEAK. These devices are engineered for general-purpose voltage monitoring applications. The series typically includes variants with different reset polarities and thresholds. The TPV821R-4LTR specifically denotes the version packaged in reels, facilitating high-volume manufacturing integration within standard SMD production lines.

Supervisors Replacement Considerations

Direct pin-to-pin replacements may include other generic supervisor ICs in SOT-143 packages with compatible voltage thresholds. Verify functional equivalence regarding reset delay times and output drive capabilities. Alternative parts must support the same supply voltage range and operate within the required temperature specifications.