BU46L344G-TL

Supervisors Overview

The BU46L344G-TL is a ROHM Semiconductor voltage detector IC with a 3.4 V threshold and 1% accuracy. It features a fixed 400 ms reset delay, eliminating external capacitors. Operating from 0.6 V to 6 V, it consumes 2.8 µA in standby. The CMOS output provides low-level active reset signals. Designed for SMD/SMT installation in SSOP-3 packages, it operates between -40°C and +105°C without manual reset or watchdog functions.

Supervisors Feature Summary

• Built-in counter timer delay circuit removes the need for external delay-setting capacitors
• Highly accurate voltage detection with 1% precision threshold monitoring
• Low current consumption design suitable for battery-powered applications
• CMOS output interface compatible with standard digital logic circuits

Supervisors Applications

• Microprocessor system reset circuits
• Battery voltage monitoring systems
• Portable electronic device power management
• Embedded system supervision

Supervisors Procurement Notes

Verify component authenticity through authorized distributors. Confirm package integrity and pin alignment before integration. Check RoHS compliance documentation for regulatory requirements. Validate operating temperature range against application conditions. Ensure proper handling procedures for moisture-sensitive devices during storage and assembly.

Supervisors Selection Notes

Consider the fixed 400 ms delay requirement for system timing constraints. Evaluate the 3.4 V threshold against target supply voltage levels. Assess the 2.8 µA standby current impact on overall power budget. Verify SSOP-3 package compatibility with PCB layout specifications. Confirm CMOS output drive capability matches downstream circuit requirements.

Supervisors Part Context

Part of the BU45/BU46 series voltage detectors offering integrated delay functionality. Provides reliable supervision for microcontroller-based systems requiring precise voltage monitoring. The fixed-delay architecture simplifies design implementation by removing external timing components. Suitable for space-constrained applications needing compact supervision solutions.

Supervisors Replacement Considerations

BD5234G-1 serves as a similar specification replacement option. Note differences in output type (open drain vs CMOS) and delay adjustability. Verify threshold voltage compatibility and package dimensions before substitution. Review operating current variations and hysteresis characteristics for circuit performance matching.