BU4834FVE-TR

Supervisors Overview

The BU4834FVE-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for monitoring supply voltages in electronic circuits. It features an open-drain output and operates within a reset active voltage range of 0.7 V to 7 V. The typical under-voltage detection threshold is set at 3.4 V with a precision of ±1%. The device supports a maximum power supply voltage of 7 V and includes hysteresis defined as VDET x 0.05. It consumes 0.40 μA during operation and 0.55 μA when off, measured at VDET=4.8V. The component is housed in a VSOF-5 package (1.6x1.6 mm) and functions across a temperature range of -40°C to 125°C.

Supervisors Feature Summary

• Provides precise low-voltage detection with open-drain CMOS output capability
• Operates with ultra-low current consumption for battery-powered applications
• Includes built-in hysteresis to prevent output oscillation near the threshold
• Available in a compact surface-mount package suitable for space-constrained designs

Supervisors Applications

• Portable electronic devices requiring efficient power management
• Battery-operated systems needing reliable voltage supervision
• Embedded controllers utilizing low-power microprocessors
• Consumer electronics with strict size limitations

Supervisors Procurement Notes

This component is currently classified as obsolete or last-time-buy status. Verify availability through authorized distributors or secondary markets. Confirm RoHS compliance and datasheet revisions before procurement. Ensure replacement strategies are evaluated due to discontinuation. Check specific ordering suffixes for tape-and-reel packaging requirements.

Supervisors Selection Notes

Select this part for applications requiring a fixed 3.4 V detection threshold with high accuracy. Consider the VSOF-5 package dimensions for PCB layout compatibility. Evaluate the open-drain output interface against system logic levels. Compare operating current specifications against total system power budgets. Review thermal performance limits for intended environmental conditions.

Supervisors Part Context

The BU4834FVE-TR belongs to ROHM's standard voltage detector series, specifically engineered for general-purpose supervisory tasks. It replaces older variants like the BU4834F while maintaining similar electrical characteristics. The device integrates essential monitoring functions without manual reset or watchdog timers, focusing on core voltage detection reliability.

Supervisors Replacement Considerations

BD5234G-1TR is listed as a recommended replacement with similar specifications.