BD4842FVE-TR

Overview

The BD4842FVE-TR is a CMOS voltage detector manufactured by Rohm Semiconductor, designed for supervisory circuit applications. It features a single input channel with a typical threshold voltage of 4.2 V and a detection precision of ±1%. The device utilizes an open-drain output configuration and operates within a supply voltage range of 0.7 V to 7 V. Key electrical parameters include a reset delay timer of no manual reset capability, a maximum power dissipation of 210 mW, and a static current consumption of 500 nA. The component supports an operating temperature range from -40°C to +125°C and is housed in a VSOF-5 surface-mount package.

Feature Summary

• CMOS technology ensures low power consumption suitable for battery-operated systems.
• Open-drain output allows flexible interfacing with various logic families.
• High accuracy voltage detection with ±1% precision for reliable system monitoring.

Applications

• Portable electronic devices requiring low standby current
• Battery-powered equipment needing under-voltage supervision
• General-purpose microprocessor reset circuits

Procurement Notes

Verify the obsolete status and last-time-buy availability through authorized distributors. Confirm RoHS compliance and lead times for remaining stock. Ensure the VSOF-5 package dimensions match PCB layout requirements before finalizing procurement orders.

Selection Notes

Select this component when a 4.2 V threshold and open-drain output are required. Consider the wide operating temperature range for industrial environments. Evaluate static current specifications against system power budgets to ensure compatibility with low-power design constraints.

Part Context

This part belongs to Rohm's standard voltage detector series, offering precise monitoring for digital systems. The VSOF-5 package provides a compact solution for space-constrained designs. It serves as a critical component for maintaining system integrity during power fluctuations.

Replacement Considerations

BD5242G-1TR is a recommended replacement with similar specifications but different packaging and adjustable delay features.