BD48K33G-TL

Overview

The BD48K33G-TL is a standard CMOS voltage detector IC manufactured by ROHM Semiconductor. It features an open-drain output type and operates within a supply voltage range of 2.3 V to 6 V. The device provides a typical under-voltage detection threshold of 3.3 V with a precision of ±1%. It includes a reset delay timer of 100 us and maintains a low reset active state. The component supports a wide operating temperature range from -40°C to +105°C, consumes 0.60 μA in the ON state and 0.85 μA in the OFF state at Vs=4.8V, and utilizes an SSOP-3 package.

Feature Summary

• Provides precise under-voltage detection for single-input monitoring applications
• Features low power consumption suitable for battery-operated systems
• Delivers stable reset signals via open-drain output configuration

Applications

• Monitoring power supply voltages in portable electronic devices
• Ensuring system stability in embedded microcontroller circuits
• Protecting data integrity during power-down sequences

Procurement Notes

Verify the current supply status as this component may be classified as Last Time Buy or obsolete. Confirm RoHS compliance and lead-free specifications against official manufacturer documentation. Ensure the SSOP-3 package dimensions match the target PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component when a fixed 3.3 V detection threshold is required for systems operating between 2.3 V and 6 V. Consider the open-drain output capability for interfacing with various logic levels. Evaluate the low standby current consumption against strict power budget constraints for portable applications requiring minimal quiescent draw.

Part Context

This part belongs to the BD48 series of supervisory circuits designed for compact surface-mount applications. It serves as a dedicated voltage monitor within ROHM's PMIC portfolio, offering reliable performance in industrial and consumer electronics. The SSOP-3 packaging allows for space-efficient integration into dense circuit board layouts.

Replacement Considerations

BD5233G-1TR is listed as a recommended replacement with similar specifications.