BD48L54G-TL

Overview

The BD48L54G-TL is a processor supervisor voltage detector manufactured by ROHM Semiconductor. It features a fixed detection threshold of 5.4V with an accuracy of ±1%. The device operates within a supply voltage range of 0.95V to 10V and provides an active-low open-drain output. Key electrical parameters include a reset delay time of 100µs, a typical operating current of 600nA at 4.8V, and hysteresis defined as Vs x 0.05. It is housed in a compact SSOP-3 package.

Feature Summary

• Provides precise voltage monitoring with a fixed 5.4V detection threshold and high accuracy for reliable system supervision.
• Features an active-low open-drain output interface suitable for direct connection to microprocessor reset pins without additional pull-up components.
• Designed for low power consumption with minimal operating current, enhancing efficiency in battery-powered or energy-sensitive applications.

Applications

• Microprocessor and microcontroller system reset circuits
• Battery-operated electronic devices requiring voltage supervision
• Portable equipment power management systems

Procurement Notes

Verify the specific suffix TL indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the SSOP-3 footprint matches the target PCB design constraints. Check for any moisture sensitivity level requirements during storage and handling procedures.

Selection Notes

Select this component when a fixed 5.4V threshold is required for system supervision. Consider the open-drain output capability for interfacing with various logic levels. Evaluate the low operating current against total system power budgets. Verify that the SSOP-3 package dimensions fit within the available board space constraints.

Part Context

This part belongs to the BD48 series of standard voltage detectors from ROHM Semiconductor. These devices are designed for general-purpose voltage monitoring in consumer and industrial electronics. The series offers various threshold voltages and package options to suit different application requirements.

Replacement Considerations

BD5250G-1 is listed as a recommended replacement with similar specifications, though it features an adjustable delay timer and SSOP-5 package instead of fixed delay and SSOP-3.

FAQ

What is the reset active state of the BD48L54G-TL?

The reset output is active-low, meaning it goes low when the monitored voltage drops below the detection threshold.

Does the BD48L54G-TL include a manual reset function?

No, the device does not support manual reset; it operates automatically based on the input voltage level.