BD48K46G-TL

Overview

The BD48K46G-TL is a standard voltage detector IC from ROHM Semiconductor, designed for monitoring power supply levels in electronic circuits. It features an N-channel open-drain output and operates within a supply voltage range of 2.3V to 10V. The device provides a fixed detection threshold of 4.6V with a precision of ±1%. It includes a reset delay timer of 100µs and offers hysteresis voltage defined as Vs x 0.05. The component supports a low operating current of approximately 900nA and functions reliably across a temperature range of -40°C to +105°C.

Feature Summary

• Provides precise voltage supervision with a fixed 4.6V detection threshold and ±1% accuracy.
• Features an N-channel open-drain output suitable for interfacing with various logic families.
• Incorporates a built-in 100µs reset delay timer to ensure stable system initialization.
• Designed for ultra-low power consumption with a typical operating current of 900nA.

Applications

• Monitoring battery voltage levels in portable electronic devices
• Supervising power supplies in embedded systems and microcontrollers
• Ensuring stable operation in industrial control equipment

Procurement Notes

Verify the specific ordering suffix TL for tape and reel packaging when sourcing. Confirm RoHS compliance status as required by project specifications. Check current supply status, as this component may be subject to end-of-life or last-time-buy notices. Ensure compatibility with existing PCB footprint dimensions for SSOP-3 packages during procurement planning.

Selection Notes

Select this component when a fixed 4.6V detection threshold is required for power management applications. Consider the ±1% precision and 100µs delay characteristics for timing-sensitive designs. Evaluate the low standby current for battery-operated systems. Verify that the open-drain output configuration meets the interface requirements of the target load circuitry.

Part Context

This part belongs to the BD48 series of voltage detectors from ROHM Semiconductor. The series is characterized by high accuracy and low current consumption. The BD48K46G-TL specifically targets applications requiring a 4.6V supervision level. It is packaged in a compact SSOP-3 format, suitable for space-constrained designs.

Replacement Considerations

The BD5246G-1 is listed as a similar specification replacement. Note differences in package type (SSOP5 vs SSOP3) and reset delay adjustability. Verify pinout compatibility and electrical parameter alignment before substitution.