BD4837FVE-TR

Overview

The BD4837FVE-TR is a standard CMOS voltage detector IC manufactured by ROHM Semiconductor. It features an open-drain output and operates within a supply voltage range of 0.95 V to 10 V. The device provides a typical under-voltage detection threshold of 3.7 V with a precision of ±1%. Hysteresis is set at 5% of the detection voltage. It supports a reset active state of low without manual reset or watchdog timer functions. The circuit current is 0.60 μA (ON) and 0.85 μA (OFF) at VS=4.8V. Output currents are 3.3 mA (LowVol) and 6.5 mA (HighVol). Operating temperature ranges from -40°C to 125°C in a VSOF5 package.

Feature Summary

• Standard CMOS voltage detection with open-drain output
• Wide operating voltage range up to 10 V
• High accuracy detection with fixed hysteresis
• Extended industrial temperature capability

Applications

• Microprocessor reset circuits
• Battery voltage monitoring
• Power supply supervision
• Embedded system protection

Procurement Notes

Verify component authenticity through authorized channels as this part may be subject to obsolescence notices. Confirm package integrity and pin alignment against the official datasheet specifications before integration. Ensure storage conditions comply with moisture sensitivity levels to prevent soldering defects during surface mount assembly processes.

Selection Notes

Select this component for applications requiring wide input voltage tolerance and high output drive capability. Consider the specific detection voltage and hysteresis requirements relative to the target power rail. Evaluate thermal performance within the specified temperature range and ensure compatibility with the system's reset logic timing constraints.

Part Context

This voltage detector belongs to ROHM's standard supervisor series designed for general-purpose electronic systems. It complements other models in the family offering different detection thresholds and package options. The device serves as a critical interface between power management and control logic, ensuring reliable system initialization and shutdown sequences.

Replacement Considerations

The BD5237G-1 is listed as a recommended replacement with similar specifications. Note that the replacement utilizes an SSOP5 package instead of the original VSOF5 form factor. Verify pinout compatibility and electrical parameter alignment before substituting in existing designs.