R5110S132C-E2-KE

Supervisors Overview

The R5110S132C-E2-KE is a supervisory circuit voltage detector designed for automotive applications, featuring a 36 V maximum input rating and AEC-Q100 qualification. It monitors a single input with a threshold voltage of 3.1 V and an overvoltage threshold of 3.155 V. The device provides an active low, open-drain output with a reset delay time of 242 ms and includes a manual reset function alongside a watchdog timer. Operating within a temperature range of -40°C to +125°C, it consumes 25 µA of supply current with 1.8% accuracy. Packaged in HSOP-18, it supports power supply monitoring systems requiring robust fault detection.

Supervisors Feature Summary

• Integrated watchdog timer functionality for system reliability monitoring
• Manual reset capability allowing external control of the reset state
• Automotive-grade qualification ensuring operation under harsh environmental conditions
• Active low open-drain output configuration for flexible interfacing

Supervisors Applications

• Automotive system power supply monitoring
• Microcontroller reset circuits in vehicle electronics
• Watchdog timer implementation for safety-critical subsystems
• Voltage supervision for ECU and infotainment modules

Supervisors Procurement Notes

Verify the specific suffix codes against the manufacturer's official datasheet to confirm pinout compatibility and functional parameters. Ensure the HSOP-18 package variant matches the target PCB footprint requirements. Confirm AEC-Q100 certification status if automotive compliance is mandatory for the end application. Cross-reference the manual reset feature availability with the exact part number designation to avoid integration errors.

Supervisors Selection Notes

Select this component when a single-channel voltage monitor with integrated watchdog and manual reset is required for automotive environments. The 3.1 V threshold suits standard 3.3 V logic systems. Consider the HSOP-18 package size constraints and the 242 ms reset delay timing relative to system startup requirements. Evaluate the 25 µA quiescent current impact on overall system power budget during standby modes.

Supervisors Part Context

This device belongs to the R5110S series of supervisory circuits from Nisshinbo Micro Devices. The series is characterized by high input voltage tolerance and automotive qualification. The R5110S132C-E2-KE specifically denotes the 3.1 V threshold variant with manual reset and watchdog features, distinguishing it from other series members with different thresholds or reset configurations.

Supervisors Replacement Considerations

Check for direct substitutes within the R5110S family that share the HSOP-18 package and identical threshold voltages. Verify that any alternative maintains the same manual reset and watchdog timer functionalities. Ensure thermal performance and operating temperature ranges match the original specifications for seamless integration.