BD4858G-TR

Overview

The BD4858G-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 5.8 V with a precision of ±1%. It includes a reset delay timer, manual reset functionality, and hysteresis voltage defined as Vs x 0.05. The circuit current is 0.60 μA in the ON state and 0.85 μA in the OFF state at Vs=4.8V. The component supports a maximum power dissipation of 210 mW and functions across a temperature range of -40°C to +105°C.

Feature Summary

• Standard CMOS voltage detection architecture
• Open-drain output configuration
• Integrated manual reset capability
• Adjustable reset delay timer

Applications

• Microprocessor system supervision
• Battery-powered equipment monitoring
• Embedded system reset generation

Procurement Notes

Verify the specific package type and suffix against official ROHM documentation, as distribution listings may vary. Confirm RoHS compliance status directly with the manufacturer or authorized distributor before procurement. Ensure the ordering part number matches the required reel quantity and packing specifications for your production line requirements.

Selection Notes

Select this component when a precise 5.8 V detection threshold is required for systems operating up to 10 V. Consider the open-drain output compatibility with your logic levels. Evaluate the low static current consumption for battery efficiency. Verify that the VSOF-5 package dimensions fit your PCB layout constraints compared to alternative SSOP packages.

Part Context

This part belongs to the BD48 series of standard voltage detectors from ROHM. It is designed for general-purpose supervisory applications requiring reliable reset signals. The device complements other parts in the family by offering specific threshold voltages and package options like VSOF-5 for compact designs.

Replacement Considerations

The BD5250G-1 is listed as a recommended replacement with similar specifications. Note differences in package type (SSOP5 vs VSOF5) and detection voltage (5.0 V vs 5.8 V). Verify pinout compatibility and electrical parameter alignment before substitution.