BD5237FVE-TR

Overview

The BD5237FVE-TR is a voltage detector manufactured by ROHM Semiconductor, housed in a VSOF5 package. It features an adjustable delay timer and an open-drain output with a low-active reset state. The typical under-voltage detection voltage is 3.7V with a precision of ±1%. The reset active voltage range spans from 0.95V to 10V. Hysteresis is set at VDET x 0.05. Circuit current is 0.85μA at VDET=4.8V. Output currents are 0.4mA (LowVol) and 2mA (HighVol). The delay circuit resistance is 9.0MΩ. Operating temperature ranges from -40°C to 105°C.

Feature Summary

• Features an adjustable delay timer for customizable reset timing.
• Provides an open-drain output type with low-active reset state.
• Includes hysteresis functionality defined as VDET x 0.05.

Applications

• Monitoring power supply voltages in electronic circuits
• Providing reset signals for microprocessors and memory devices
• Ensuring system stability during power-up and power-down sequences

Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm that the VSOF5 package dimensions match the target PCB footprint. Check the RoHS compliance status and ensure the component meets environmental requirements for the intended application. Validate the supply status, as this part may be subject to last-time buy restrictions or obsolescence notices.

Selection Notes

Select this component when an adjustable delay timer is required alongside an open-drain output. Ensure the operating voltage range covers the system's minimum and maximum supply levels. Consider the thermal performance within the specified temperature range. Verify that the output current capabilities meet the load requirements of the connected circuitry without exceeding specifications.

Part Context

This component belongs to the BD52xx series of voltage detectors from ROHM Semiconductor. It is designed for supervisory applications requiring precise voltage monitoring. The VSOF5 package offers a compact form factor suitable for space-constrained designs. The adjustable delay feature allows flexibility in system reset timing configurations.

Replacement Considerations

The BD5237G-1 is listed as a recommended replacement with the same pinout. Note that the BD5237G-1 uses an SSOP5 package instead of VSOF5. Verify mechanical compatibility and electrical parameter alignment before substitution.

FAQ

What is the typical under-voltage detection voltage for the BD5237FVE-TR?

The typical under-voltage detection voltage is 3.7V.

Does the BD5237FVE-TR include a manual reset function?

No, the BD5237FVE-TR does not include a manual reset function.

What is the reset active state of the BD5237FVE-TR?

The reset active state is low.