BD52E45G-TR

Overview

The BD52E45G-TR is a voltage detector with adjustable delay time, manufactured by Rohm Semiconductor. It features an under-voltage detection threshold of 4.5V with ±1% precision and hysteresis at VDET x 0.05. The device operates within a reset active voltage range of 0.95 to 10V, utilizing an open-drain output that asserts low. It consumes 0.85μA in both ON and OFF states at VDET=4.8V, with low-level output current of 0.4mA and high-level of 2mA. Operating temperature spans -40°C to 105°C in an SSOP5 package.

Feature Summary

• Adjustable reset delay timer for flexible timing control
• High voltage detection precision of ±1%
• Low power consumption suitable for battery-operated systems
• Wide operating voltage range supporting various logic levels

Applications

• Microcontroller system supervision
• CPU power monitoring
• DSP circuit protection
• General-purpose voltage monitoring

Procurement Notes

Verify the supply status as Not Recommended for New Designs before procurement. Confirm compatibility with existing designs only. Check for recommended replacement parts like BD5245G-1 if starting new projects. Ensure ordering suffix matches required packaging. Validate RoHS compliance and temperature ratings against specific application requirements.

Selection Notes

Select this component for legacy system maintenance where pinout and package compatibility are critical. Consider the adjustable delay feature for noise immunity. Evaluate the higher current consumption compared to newer alternatives. Verify that the open-drain output meets interface requirements. Assess thermal performance within the specified temperature range.

Part Context

This part belongs to Rohm's voltage detector family designed for reliable system supervision. It supports existing customers while directing new designs toward updated components. The SSOP5 package ensures compact integration. The adjustable delay allows customization for specific startup sequences or noise filtering needs in embedded applications.

Replacement Considerations

BD5245G-1 is a recommended replacement with the same pinout and package. It offers improved current consumption and slightly better detection precision. Verify functional equivalence for existing designs before substitution.

FAQ

What is the typical voltage detection threshold?

The typical under-voltage detection voltage is 4.5V.

Is manual reset functionality available?

No, the BD52E45G-TR does not support manual reset.

What is the output type?

The output type is open drain.