BD5254G-TR

Overview

The BD5254G-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply voltages in electronic circuits. It features an open-drain output and a programmable reset delay timer to prevent false resets during power-up transients. The device operates within a wide input voltage range of 0.95 V to 10 V, with a typical under-voltage detection threshold of 5.4 V and a precision of ±1%. It is housed in an SSOP-5 package and supports a temperature range from -40°C to +105°C.

Feature Summary

• Features a programmable reset delay timer to manage power-on reset timing.
• Provides an open-drain output type for flexible interface compatibility.
• Operates with high accuracy, maintaining a detection voltage precision of ±1%.

Applications

• Monitoring power supply voltages in embedded systems
• Providing reset signals for microcontrollers and digital logic
• Supervisory circuits in industrial control equipment

Procurement Notes

Verify the specific ordering suffix (e.g., -TR) to confirm tape-and-reel packaging requirements. Ensure the selected variant matches the required detection voltage and package type. Confirm RoHS compliance status if environmental regulations apply to your manufacturing process. Check current supply status as availability may vary.

Selection Notes

Select this component when a fixed 5.4 V detection threshold is required with adjustable reset timing. Consider the open-drain output capability for interfacing with various logic families. Evaluate the operating temperature range to ensure suitability for the intended environmental conditions. Compare power consumption metrics against other supervisory ICs if energy efficiency is critical.

Part Context

This part belongs to the BD52 series of voltage detectors from ROHM Semiconductor. These devices are commonly used in power management applications where reliable supervision of supply rails is necessary. The series offers various detection voltages and package options to suit different design constraints.

Replacement Considerations

The BD5250G-1 is listed as a similar level replacement with the same pinout and package. Verify that its 5.0 V detection threshold and compatible delay timer functionality meet the circuit requirements before substitution.

FAQ

What is the output configuration of the BD5254G-TR?

The BD5254G-TR features an open-drain output type, which requires an external pull-up resistor for proper operation.

Does the BD5254G-TR include a manual reset function?

No, the BD5254G-TR does not support manual reset; it relies on automatic detection and the programmable delay timer.