BD46335G-TR

Overview

The BD46335G-TR is a voltage detector IC from ROHM Semiconductor, featuring a fixed delay time of 50 milliseconds. It offers a typical under-voltage detection threshold of 3.3V with ±1% precision. The device supports a reset active voltage range of 0.95V to 10V and provides a CMOS output type with low-active reset state. It includes manual reset functionality but lacks a watchdog timer. Operating current is 0.80μA (VDet=4.8V) when active and 0.85μA when off. It operates within a temperature range of -40°C to +105°C in an SSOP-5 package.

Feature Summary

• Integrates a built-in counter timer delay circuit, eliminating the need for external capacitors for delay setting.
• Provides high-accuracy voltage monitoring with ±1% detection precision.
• Supports manual reset functionality for controlled system recovery.

Applications

• Processor supervisor circuits requiring precise voltage monitoring.
• Embedded systems needing reliable power-on reset sequences.
• Battery-powered devices utilizing low current consumption features.

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notices, as supply status may vary. Ensure ordering suffixes match required packaging specifications. Validate datasheet revisions against specific design requirements before procurement.

Selection Notes

Select this component for applications requiring fixed delay times without external timing components. Compare with BD5233G-1 if adjustable delay or open-drain output is preferred. Consider operating voltage ranges and output drive capabilities relative to downstream logic levels. Verify thermal performance within the specified ambient temperature limits.

Part Context

Part of the BD46xxx series of highly accurate, low-current voltage detectors. Designed for supervisory circuits where compact size and minimal external component count are critical. Utilizes CMOS technology for efficient power management in portable and industrial electronics.

Replacement Considerations

BD5233G-1 is listed as a similar level replacement with the same package but features adjustable delay and open-drain output instead of fixed delay and CMOS output.

FAQ

Does the BD46335G-TR require an external capacitor for the reset delay?

No, the device has a built-in counter timer delay circuit, so no external capacitor is needed for setting the delay time.

What is the output type of the BD46335G-TR?

The BD46335G-TR features a CMOS output type with a low-active reset state.