BD4833G-TR

Overview

The BD4833G-TR is a standard CMOS voltage detector IC manufactured by Rohm Semiconductor. It features a fixed threshold voltage of 3.3V with a detection accuracy of ±1%. The device operates within a supply voltage range of 0.95V to 10V and provides an open-drain output that asserts low when the monitored voltage falls below the threshold. It includes no manual reset, watchdog timer, or chip enable functions. The component is housed in a compact SSOP-5 package and supports operation across an extended temperature range from -40°C to +105°C.

Feature Summary

• Fixed 3.3V threshold voltage detection with high precision
• Open-drain output configuration for flexible interfacing
• Low power consumption suitable for battery-operated systems
• Compact surface-mount packaging for space-constrained designs

Applications

• Portable electronic devices requiring voltage monitoring
• Battery-powered equipment needing under-voltage protection
• Embedded systems utilizing microcontroller supervision
• Industrial control circuits with strict voltage limits

Procurement Notes

Verify the specific suffix G-TR to confirm the tape-and-reel packaging format and RoHS compliance status. Confirm the lifecycle status as Not Recommended for New Designs (NRND) before initiating procurement. Ensure compatibility with existing SSOP-5 footprints in current PCB layouts. Check for any updated datasheet revisions that may affect electrical characteristics or pin definitions prior to final ordering decisions.

Selection Notes

Select this component when a fixed 3.3V detection point is required without adjustable thresholds. Consider the open-drain output requirement for pull-up resistor integration. Evaluate the ±1% accuracy against system tolerance needs. Compare operating temperature ranges if applications exceed standard industrial limits. Assess power consumption requirements against alternative low-power detectors in the same series.

Part Context

This part belongs to Rohm's standard voltage detector family, designed for reliable power management in consumer and industrial electronics. It serves as a dedicated supervisory circuit for ensuring stable operation of digital logic and microcontrollers. The SSOP-5 package allows for efficient board space utilization compared to larger alternatives.

Replacement Considerations

BD5233G-TR is listed as a parameter-equivalent replacement option. Verify package compatibility and electrical specifications before substitution. Ensure the alternative meets all thermal and voltage requirements of the original design.