S-80855CNUA-B9GT2U

Supervisors Overview

The S-80855CNUA-B9GT2U is a supervisory circuit voltage detector manufactured by ABLIC Inc. It operates within a supply voltage range of 950 mV to 10 V and features a threshold voltage of 5.5 V. The device provides an active low, open-drain output signal with adjustable reset delay time. It supports single-input monitoring without manual reset or watchdog timer functions. The component is housed in an SOT-23-5 package and maintains an accuracy of 2%. It functions reliably across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides active low open-drain output for power failure detection
• Features adjustable reset delay time for flexible timing control
• Supports single-channel voltage monitoring with high accuracy

Supervisors Applications

• Monitoring microprocessor power supply rails
• Detecting under-voltage conditions in battery-powered systems
• Ensuring system stability during power-up and power-down sequences

Supervisors Procurement Notes

Verify the specific suffix B9GT2U against official ABLIC documentation to confirm pinout and electrical characteristics match design requirements. Ensure the SOT-23-5 package footprint aligns with PCB layout constraints. Confirm RoHS compliance status through current manufacturer declarations before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a 5.5 V threshold is required for single-supervision applications. Consider the adjustable reset delay feature if precise timing synchronization with other system components is necessary. Verify that the 10 V maximum operating voltage accommodates potential transient spikes in the target power rail environment.

Supervisors Part Context

This part belongs to the S-808xxC series of supervisory circuits from ABLIC. The series is designed for reliable power management in various electronic applications. The S-80855 variant specifically targets systems requiring a 5.5 V detection level. The CNUA designation indicates the specific package and thermal characteristics associated with this model line.

Supervisors Replacement Considerations

Consult official ABLIC cross-reference documents for verified substitutes. Ensure any replacement matches the 5.5 V threshold, SOT-23-5 package, and active low open-drain output configuration. Generic equivalents may not provide the same accuracy or delay adjustability.