BD48K57G-TL

Overview

The BD48K57G-TL is a voltage detector from ROHM Semiconductor, designed for monitoring power supply levels. It features a fixed threshold voltage of 5.7 V with a precision of ±1%. The device operates within a supply voltage range of 0.95 V to 10 V and consumes a typical operating current of 600 nA at 4.8 V. It provides an open-drain output with a reset delay timer and maintains functionality across a temperature range of -40°C to +105°C. Packaged in SSOP-3, it lacks manual reset or watchdog capabilities.

Feature Summary

• Provides precise under-voltage detection with a fixed 5.7 V threshold and ±1% accuracy.
• Features ultra-low power consumption suitable for battery-operated applications.
• Delivers an open-drain reset signal with a standard reset delay timer.

Applications

• Monitoring power supplies in portable electronic devices
• System reset generation in embedded microcontroller circuits
• Battery voltage supervision in low-power consumer electronics

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance and moisture sensitivity level before procurement. Check for obsolescence notifications and last-time buy deadlines. Ensure storage conditions meet humidity requirements to prevent package damage during handling and assembly processes.

Selection Notes

Select this component when a fixed 5.7 V detection threshold is required without adjustable settings. Consider the SSOP-3 package constraints for board space. Evaluate the open-drain output compatibility with downstream logic levels. Compare power consumption against alternative detectors if extended battery life is critical for the specific application design.

Part Context

This part belongs to the BD48 series of voltage detectors manufactured by ROHM Semiconductor. It is categorized under supervisory circuits within power management ICs. The series focuses on providing reliable system reset functions with minimal power overhead for compact electronic designs requiring stable voltage monitoring.

Replacement Considerations

BD5250G-1TR is listed as a recommended replacement with similar specifications. Verify pinout compatibility between SSOP-3 and SSOP-5 packages. Check if the adjustable delay feature of the substitute meets design requirements compared to the fixed delay of the original part.