BD46271G-TR

Overview

The BD46271G-TR is a single-channel voltage detector manufactured by Rohm Semiconductor, designed for supervisory circuit applications. It features a fixed detection threshold of 2.7V with a reset active state that is low effective. The device utilizes a push-pull/totem pole output configuration and includes a minimum reset timeout of 90ms. It operates within a supply voltage range of 0.95V to 10V and supports an operating temperature range from -40°C to 105°C. The component is housed in a 5-SSOP (SC-74A) surface-mount package.

Feature Summary

• Provides precise voltage monitoring with a fixed 2.7V detection threshold
• Features a push-pull output stage for direct logic interface compatibility
• Includes a built-in reset delay timer to ensure stable system recovery

Applications

• Microprocessor system power supervision
• Battery-operated equipment voltage monitoring
• Portable electronic device power management

Procurement Notes

Verify the specific suffix G-TR against the manufacturer's current datasheet to confirm package dimensions and tape-and-reel specifications. Confirm RoHS compliance status and lead times directly with authorized distributors, as this component may be subject to end-of-life restrictions or obsolescence notices.

Selection Notes

Select this component when a fixed 2.7V threshold is required for systems operating between 0.95V and 10V. The push-pull output eliminates the need for external pull-up resistors, simplifying board layout. Ensure the 90ms minimum reset delay aligns with the target microcontroller's startup requirements.

Part Context

This part belongs to the BD46xxx series of CMOS voltage detectors from Rohm Semiconductor. These devices are engineered for high accuracy and low current consumption, serving as critical components in ensuring reliable power sequencing and fault detection in embedded systems.

Replacement Considerations

BD5227G-1TR is listed as a similar replacement option by the manufacturer.