BD46442G-TR

Overview

The BD46442G-TR is a voltage detector with fixed delay time manufactured by ROHM Semiconductor. It features an under-voltage detection voltage of 4.4V typical, with a precision of ±1%. The reset active voltage range spans from 0.95V to 10V. It utilizes a CMOS output type and includes a manual reset function. The reset delay timer is fixed at 200msec. The circuit current is 0.80μA when on (at Vdet=4.8V) and 0.85μA when off. It operates within a temperature range of -40°C to +85°C and is housed in an SSOP-5 package.

Feature Summary

• Fixed 200msec reset delay timer for consistent timing control
• Manual reset capability allows external control over the reset state
• CMOS output structure supports low power consumption applications
• High precision voltage detection with ±1% tolerance

Applications

• Microprocessor system supervision
• Battery-powered device monitoring
• Industrial control circuit protection

Procurement Notes

Verify the exact ordering suffix and package variant against the official datasheet before procurement. Confirm supply status as the component may be subject to end-of-life notices. Ensure compatibility with existing PCB footprint and thermal requirements. Check RoHS compliance documentation for regulatory adherence. Validate replacement options if the primary part is unavailable.

Selection Notes

Select this component when a fixed delay time is required without external capacitor adjustments. The CMOS output is suitable for digital logic interfaces. Consider the manual reset feature for systems requiring controlled initialization sequences. Evaluate the low standby current for battery-operated designs. Ensure the operating voltage range matches the monitored rail specifications.

Part Context

The BD46442G-TR belongs to the BD46 series of voltage detectors from ROHM Semiconductor. This series is designed for supervisory circuits in electronic systems. The TR suffix indicates tape and reel packaging for automated assembly. The component is part of ROHM's portfolio of low-power monitoring ICs.

Replacement Considerations

The BD5244G-1 is listed as a similar level replacement with the same package. Verify functional equivalence regarding delay time and output type before substitution.