TC1272ASVNBTR

Supervisors Overview

The TC1272ASVNBTR is a supervisory circuit manufactured by Microchip Technology, designed for voltage monitoring applications. It operates within a supply voltage range of 1 V to 5.5 V and features an active low push-pull output. The device provides precise threshold detection with an undervoltage threshold of 4.31 V and an overvoltage threshold of 4.45 V. It includes a reset delay time of 320 ms and consumes only 12 µA of operating current. The component is housed in a SOT-23-3 package and supports surface mount installation across a temperature range of -40 °C to +125 °C.

Supervisors Feature Summary

• Provides single-channel voltage supervision with active low push-pull output configuration
• Features factory-set thresholds for both undervoltage and overvoltage detection
• Operates with ultra-low power consumption suitable for battery-powered systems
• Includes a defined reset delay timer to ensure stable system initialization

Supervisors Applications

• Microprocessor reset circuits
• Battery-powered equipment monitoring
• Portable consumer electronics
• Industrial control systems

Supervisors Procurement Notes

Verify the specific suffix 'S' indicates the correct threshold variant (4.31 V/4.45 V) against design requirements. Confirm the SOT-23-3 package compatibility with PCB footprint. Check RoHS compliance status as indicated in official documentation. Ensure moisture sensitivity level handling procedures are followed during assembly. Validate that the active low output logic aligns with the target microcontroller input specifications.

Supervisors Selection Notes

Select this component when a simple, low-power supervisor is required for voltages near 4.3 V. The fixed threshold eliminates the need for external resistor dividers compared to adjustable supervisors. Consider the 320 ms delay if faster response times are needed, or if the application requires manual reset functionality which this model lacks. Compare against the TC1272AJVNBTR if a different threshold voltage is necessary for the specific power rail being monitored.

Supervisors Part Context

This part belongs to the TC1272A series of supervisory circuits from Microchip Technology. The series offers various threshold options and output configurations to suit different power management needs. The TC1272ASVNBTR specifically targets applications requiring a 4.3 V class threshold with an active low output. It complements other PMIC components like LDO regulators and voltage detectors within the same product family.

Supervisors Replacement Considerations

Public confirmed substitute part numbers: TCM809JVNB713, ADM809JARTZ-REEL7, APX809S-40SA-7, APX809S-40SR-7.