BD48E27G-TR

Overview

The BD48E27G-TR is a high-precision, low-current voltage detector IC from the BD48xxx series by ROHM Semiconductor. It features an N-channel open-drain output and provides a fixed detection voltage of 2.7V with ±1% precision. The device operates within a supply voltage range of 1.2V to 10V and supports a reset active voltage range of 0.95V to 10V. It includes hysteresis voltage defined as Vs x 0.05 and offers a circuit current of 0.60μA (ON) and 0.85μA (OFF) at Vs=4.8V. The component is housed in a 5-pin SSOP package and is rated for an operating temperature range of -40°C to +105°C.

Feature Summary

• High accuracy voltage detection with ±1% precision
• Low current consumption suitable for battery-powered applications
• N-channel open-drain output configuration
• Built-in hysteresis to prevent output chattering

Applications

• Processor supervisor circuits
• Battery voltage monitoring systems
• Portable electronic devices requiring power management

Procurement Notes

Verify the specific suffix G-TR against the official datasheet to confirm the tape-and-reel packaging format and pinout compatibility. Ensure the design accounts for the open-drain output requirements, including necessary pull-up resistor selection. Confirm RoHS compliance status and check for any end-of-life notices or recommended replacement parts such as the BD5227G-1 series if new designs are being considered.

Selection Notes

Select this component when a precise 2.7V threshold is required with minimal quiescent current. The open-drain output allows flexibility in interfacing with various logic levels via external pull-up resistors. Consider the wide operating voltage range and temperature stability for robust performance in industrial or automotive environments where standard supervisors may lack precision or efficiency.

Part Context

This part belongs to the BD48xxx series of voltage detectors, which are designed for high accuracy and low power consumption. The series includes variants with detection voltages ranging from 2.3V to 6.0V in 0.1V increments. These ICs are commonly used in portable equipment and battery-operated systems where power efficiency and reliable voltage monitoring are critical for system stability.

Replacement Considerations

The BD5227G-1TR is listed as a recommended replacement with the same SSOP5 package and similar electrical characteristics. Verify that the adjustable delay timer feature of the replacement does not conflict with existing circuit timing requirements.