R3132D34EA-TR-FE

Supervisors Overview

The R3132D34EA-TR-FE is a low voltage detector manufactured by Nisshinbo Micro Devices, designed for monitoring single-input power supply voltages. It operates within a supply voltage range of 750 mV to 6 V and features an open-drain output type with manual reset capability. The device detects under-voltage conditions at a threshold of 3.332 V and over-voltage conditions at 3.468 V, centered around a nominal threshold of 3.4 V. It includes a built-in delay circuit providing a reset delay time of 240 ms and supports battery backup switching. The accuracy is specified at 2%, with a typical operating current of 900 nA. Power dissipation is rated at 500 mW, and it functions reliably across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a built-in delay circuit for stable reset signal generation
• Supports battery backup switching functionality for critical data retention
• Features high precision voltage detection with 2% accuracy tolerance
• Utilizes low-power architecture suitable for battery-operated systems

Supervisors Applications

• Monitoring microcontroller power supply rails
• Protecting memory circuits during power loss events
• Ensuring system stability in portable electronic devices
• Managing power sequencing in embedded control systems

Supervisors Procurement Notes

Verify the specific package variant SON1612-6 matches your PCB footprint requirements before ordering. Confirm that the open-drain output configuration aligns with your downstream logic interface levels. Ensure the 240 ms delay characteristic meets your system's startup timing constraints. Check RoHS compliance documentation if environmental regulations apply to your manufacturing process. Validate the 900 nA operating current against your total power budget calculations.

Supervisors Selection Notes

Choose this component when a dedicated battery backup switch is required alongside voltage supervision. Select the SON1612-6 package if space efficiency is prioritized over the SC-82AB-4 alternative. Consider the 240 ms delay duration to ensure compatibility with your target application's recovery protocols. Evaluate the 900 nA quiescent current against stricter low-power alternatives like the R3132Q series if extended battery life is critical. Verify that the open-drain output can drive the intended load impedance effectively.

Supervisors Part Context

This part belongs to the R3132D series of low voltage detectors from Nisshinbo Micro Devices. It shares functional similarities with other models in the family but is distinguished by its specific 3.4 V threshold and SON1612-6 packaging. Unlike the R3132Q series which uses SC-82AB-4 packages, this variant offers different thermal and mechanical characteristics. It serves as a specialized solution for applications requiring both voltage monitoring and battery management capabilities within a compact surface-mount form factor.

Supervisors Replacement Considerations

R3132D34EC-TR-FE

Supervisors FAQ

Does the R3132D34EA-TR-FE include a watchdog timer function?

No, this specific model does not include a watchdog timer; it focuses solely on voltage detection and reset generation.

What is the maximum operating voltage for this voltage detector?

The maximum operating supply voltage is 6 V, allowing it to monitor higher voltage rails through appropriate divider networks if necessary.