BD5228G-TR

Overview

The BD5228G-TR is a single-channel voltage detector manufactured by Rohm Semiconductor, designed for power supply supervision. It operates within a supply voltage range of 2.3V to 6V and features a fixed detection threshold of 2.8V. The device provides a low-active reset signal via an open-drain or open-collector output. It supports surface-mount installation in a compact 5-pin SSOP package measuring 2.9mm x 2.8mm with a height of 1.25mm. The component functions reliably across an extended temperature range from -40°C to +105°C.

Feature Summary

• Provides reliable system reset generation through a dedicated voltage monitoring channel with a fixed 2.8V threshold.
• Features an open-drain or open-collector output interface compatible with various logic families.
• Designed for low-power applications with minimal current consumption during operation.

Applications

• Portable electronic devices requiring efficient power management
• Battery-operated equipment needing under-voltage protection
• Embedded systems utilizing microcontrollers for supervisory control

Procurement Notes

Verify the specific suffix against official Rohm documentation to confirm exact electrical characteristics and packaging details. Confirm RoHS compliance status and ensure the selected variant matches the required operating temperature range for the intended application environment before finalizing procurement orders.

Selection Notes

Select this component when a fixed 2.8V threshold is required for single-supervision tasks. Ensure the design accommodates the open-drain output configuration with appropriate pull-up resistors. Verify that the 5SSOP package dimensions fit the available PCB space constraints.

Part Context

This part belongs to the BD52xx series of voltage detectors from Rohm Semiconductor. These components are engineered for general-purpose power management, offering precise monitoring capabilities in small form factors suitable for modern consumer electronics and industrial control systems.

Replacement Considerations

BD5228G-1TR is listed as a similar replacement with the same pinout and package.

FAQ

What is the active state of the reset output?

The reset output is active low, meaning it asserts a low signal when the monitored voltage drops below the threshold.

Does this device include a manual reset function?

No, the BD5228G-TR does not support manual reset operations; it relies solely on automatic voltage detection.