S-191LQ45AA-S8T1U7

Supervisors Overview

The S-191LQ45AA-S8T1U7 is a high-accuracy window voltage detector developed using CMOS technology by ABLIC Inc. It monitors supply voltages within the range of 3V to 36V and detects both undervoltage and overvoltage conditions with an accuracy of ±1.5%. The device features a divided output for supply voltage monitoring and utilizes an open-drain or open-collector output configuration. It is housed in an 8-pin HTMSOP package and operates across a temperature range of -40°C to +125°C, making it suitable for automotive applications requiring reliable voltage supervision.

Supervisors Feature Summary

• High-accuracy window voltage detection for undervoltage and overvoltage
• Supply voltage divided output capability
• Open-drain or open-collector output configuration
• Automotive-grade operation up to 125°C

Supervisors Applications

• Automotive electronic control units
• Battery voltage monitoring systems
• Power supply supervision circuits
• Undervoltage and overvoltage protection modules

Supervisors Procurement Notes

Verify current availability and lead times directly with authorized distributors or the manufacturer, as this component may be subject to factory special order status. Confirm that the specific suffix matches the required output type and package variant. Ensure compliance with RoHS directives and check for any regional shipping restrictions before placing orders. Cross-reference the full part number against official datasheets to confirm pinout and electrical specifications.

Supervisors Selection Notes

Select this component when precise window voltage detection is required for high-voltage automotive systems. The wide input range supports direct monitoring of battery lines without external dividers. Consider the open-drain output for flexible logic interfacing. Verify thermal requirements align with the -40°C to +125°C operating range. Ensure the HTMSOP package fits the PCB layout constraints.

Supervisors Part Context

This part belongs to the S-191L series of window voltage detectors from ABLIC Inc., designed for robust performance in demanding environments. The series emphasizes high accuracy and reliability for automotive applications. The S-191LQ45AA-S8T1U7 specifically targets systems requiring supervision of voltages up to 36V, offering a compact solution compared to discrete resistor networks.

Supervisors Replacement Considerations

Consult official substitution guides for compatible parts within the S-191L series or equivalent automotive voltage detectors. Verify pin compatibility and electrical parameters such as detection thresholds and output drive capabilities before replacing.