BD4953FVE-TR

Overview

The BD4953FVE-TR is a high-accuracy voltage detector IC from the ROHM BD49xxx series, designed for monitoring power supply voltages. It features a CMOS output and provides a typical under-voltage detection threshold of 5.3V with a precision of ±1%. The device operates within a reset active voltage range of 0.95V to 10V and supports a maximum supply voltage of 10V. It consumes low circuit current, specified at 0.60μA (ON) and 0.85μA (OFF) at Vs=4.8V. The component includes hysteresis defined as Vs x 0.05 and offers output currents of 0.4mA (Low) and 2mA (High). It is housed in a VSOF5 package measuring 1.6x1.6mm with a thickness of 0.6mm, operating between -40°C and +105°C.

Feature Summary

• CMOS output interface for direct logic compatibility
• High accuracy voltage detection with ±1% precision
• Low current consumption suitable for battery-powered applications
• Integrated hysteresis to prevent output oscillation

Applications

• Power supply supervision in electronic systems
• Monitoring voltage levels in portable devices
• Reset signal generation for microcontrollers

Procurement Notes

Verify the specific detection voltage variant required, as the BD4953FVE-TR corresponds to a 5.3V threshold within the BD49xxx family. Confirm RoHS compliance status and check the supply status, which may indicate Last Time Buy availability. Ensure the VSOF5 package dimensions match the PCB footprint requirements. Cross-reference the ordering part number BD4953FVE-TR with the manufacturer's latest documentation to confirm pinout and electrical characteristics before integration.

Selection Notes

Select this component when a precise 5.3V detection threshold is needed with CMOS output drive capabilities. Consider the low current consumption for energy-efficient designs. Compare against alternatives like the BD5250G-1 if different package types or open-drain outputs are acceptable. Evaluate the operating temperature range and reset voltage span to ensure compatibility with the system's power rail variations.

Part Context

The BD4953FVE-TR belongs to the BD49xxx series of voltage detectors from ROHM Semiconductor. This series is characterized by high accuracy and low current consumption, utilizing CMOS output technology. The family covers detection voltages from 2.3V to 6.0V in 0.1V increments. The BD4953 specifically targets applications requiring stable supervision around the 5.3V level, offering reliability in compact VSOF5 packaging.

Replacement Considerations

The BD5250G-1 is listed as a similar specification replacement. Note that it uses an SSOP5 package instead of VSOF5 and features an open-drain output rather than CMOS. The detection voltage differs slightly at 5.0V compared to the BD4953FVE-TR's 5.3V. Verify package compatibility and output driver requirements before substitution.