BD53E33G-TR

Overview

The BD53E33G-TR is a single-channel voltage detector manufactured by ROHM Semiconductor, designed for supervisory circuit applications. It features a typical under-voltage detection threshold of 3.3V with a precision accuracy of ±1%. The device operates within a reset active voltage range of 0.95V to 10V and utilizes a CMOS push-pull output type. Key electrical parameters include a maximum power supply voltage of 10V and a minimum operating voltage of -300mV. The component supports an adjustable reset delay timer and maintains hysteresis at VDET x 0.05. It is housed in a 5-pin SSOP package and functions reliably across an extended temperature range from -40°C to +105°C.

Feature Summary

• Features an adjustable reset delay timer for flexible timing control.
• Provides high-accuracy voltage detection with ±1% precision.
• Utilizes CMOS push-pull output for robust signal driving.

Applications

• Portable equipment requiring reliable power monitoring
• Microprocessor system reset circuits
• Battery-powered device supervision

Procurement Notes

Verify the specific ordering suffix TR for tape-and-reel packaging configuration. Confirm RoHS compliance status through official documentation. Check current lifecycle status as Not Recommended for New Designs (NRND) to assess long-term availability risks. Ensure the SSOP-5 package dimensions match the target PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component when a fixed 3.3V threshold with high accuracy is required. Consider the CMOS output capability for direct interfacing with digital logic. Evaluate the adjustable delay feature against application timing needs. Compare power consumption characteristics if ultra-low standby current is critical for the specific design constraints.

Part Context

This part belongs to the BD53Exx series of voltage detectors from ROHM Semiconductor. It is specifically engineered for systems needing precise under-voltage monitoring. The series offers various threshold options while maintaining consistent package and functional characteristics across different voltage levels.

Replacement Considerations

BD5233G-1 is documented as a replacement with the same pinout and package. Verify compatibility regarding output type differences, as the substitute uses open-drain output instead of CMOS push-pull. Confirm that the slightly different reset active voltage range and current consumption meet the original design specifications.