BU46L334G-TL

Supervisors Overview

The BU46L334G-TL is a CMOS output voltage detector IC from ROHM Semiconductor, designed for monitoring single power supply lines. It features a fixed reset delay timer of 400 milliseconds, eliminating the need for external timing capacitors. The device operates within a supply voltage range of 0.6 V to 6 V and offers high detection accuracy of ±1%. It consumes a typical operating current of 2.8 µA and functions reliably across an extended temperature range from -40°C to +105°C. Packaged in SSOP-3, it provides a low-active reset signal without manual reset or watchdog capabilities.

Supervisors Feature Summary

• Integrated counter timer delay circuit removes requirement for external delay-setting components
• CMOS output type delivers low-active reset signal with high detection precision
• Low current consumption design supports battery-powered applications
• Wide operating voltage range accommodates various system power rails

Supervisors Applications

• Microprocessor reset circuits
• Battery voltage monitoring systems
• Portable electronic devices requiring low standby current
• Industrial control system supervision

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for moisture sensitivity labeling prior to surface mount assembly. Ensure storage conditions meet humidity requirements to prevent package degradation. Validate part marking against official datasheet specifications to avoid counterfeit substitution risks during procurement.

Supervisors Selection Notes

Select this component when a fixed 400 ms delay is required without external capacitor usage. Choose over adjustable delay variants if timing stability is critical. Consider the CMOS output drive capability against load requirements. Verify that the 6 V maximum supply voltage aligns with the target system rail. Evaluate thermal performance within the specified -40°C to +105°C operational envelope.

Supervisors Part Context

This part belongs to the BU45/BU46 series of highly accurate, low-current voltage detectors. The series distinguishes itself by integrating internal delay timers, simplifying board layout. The BU46L334G-TL specifically denotes the tape-and-reel packaging variant of the BU46L334G, facilitating automated surface-mount production processes while maintaining identical electrical characteristics.

Supervisors Replacement Considerations

The BD5233G-1 is listed as a similar specification replacement option. Verify pin compatibility and electrical parameter alignment before substitution. Note that the BD5233G-1 features adjustable delay timing rather than fixed delay, which may require circuit modification.