BD46371G-TR

Overview

The BD46371G-TR is a voltage detector with a fixed delay time, manufactured by ROHM Semiconductor. It features an under-voltage detection voltage of 3.7V typical and a precision of ±1%. The reset active voltage range spans from 0.95V to 10V. The output type is CMOS, and it includes a manual reset function. The reset delay timer is fixed at 100msec. The circuit current is 0.80μA (ON) and 0.85μA (OFF) at VDET=4.8V. It operates within a temperature range of -40°C to +105°C and is housed in an SSOP5 package.

Feature Summary

• Fixed delay timer for consistent reset timing
• Manual reset capability for system control
• CMOS output interface
• Low power consumption design

Applications

• Microprocessor reset circuits
• Battery-powered device supervision
• Portable equipment power management

Procurement Notes

Verify the supply status as the component may be discontinued or not recommended for new designs. Confirm the ordering part number BD46371G-TR matches the required SSOP5 package and taping quantity. Ensure compatibility with existing board layouts and thermal requirements before procurement.

Selection Notes

Select this component when a fixed delay reset is required without external timing components. Compare with adjustable delay variants if flexibility is needed. Consider the CMOS output drive capability and operating voltage range relative to the monitored system rails.

Part Context

This part belongs to the BD46 series of voltage detectors from ROHM. It is designed for supervisory applications requiring precise under-voltage detection. The fixed delay feature simplifies design by eliminating external resistors or capacitors typically used for timing adjustments.

Replacement Considerations

BD5237G-1 is listed as a similar level replacement with the same package. Verify pinout compatibility and electrical parameter differences, such as open drain output versus CMOS, before substitution.