BU46L332G-TL

Supervisors Overview

The BU46L332G-TL is a CMOS output voltage detector from the ROHM BU45/BU46 series, designed for monitoring single-input power supplies. It features a fixed threshold voltage of 3.3 V with 1% accuracy and an overvoltage threshold of 3.333 V. The device includes a built-in counter timer providing a fixed reset delay of 200 ms, eliminating the need for external capacitors. Operating within a supply voltage range up to 6 V, it consumes only 2.8 uA in the active state. Packaged in an SSOP-3 format, it supports operation between -40 C and +105 C.

Supervisors Feature Summary

• Integrated counter timer delay circuit removes requirement for external timing components
• CMOS output type provides direct logic interface compatibility
• High detection accuracy ensures reliable voltage threshold monitoring
• Low current consumption supports battery-powered applications

Supervisors Applications

• Portable electronic devices requiring low standby current
• Microprocessor system power supply supervision
• Battery-operated equipment voltage monitoring
• General-purpose embedded system reset generation

Supervisors Procurement Notes

Verify component authenticity through authorized channels as this part carries an NRND status. Confirm package orientation and pinout alignment during integration. Check RoHS compliance documentation for specific regional requirements. Ensure storage conditions account for moisture sensitivity classification prior to soldering processes.

Supervisors Selection Notes

Select this component when a fixed 3.3 V threshold with precise 1% tolerance is required. The integrated 200 ms delay simplifies design by removing external capacitor dependencies. Consider the CMOS output drive capability against load requirements. Evaluate the SSOP-3 footprint constraints against available board space.

Supervisors Part Context

This voltage detector belongs to the BU45/BU46 series, characterized by high accuracy and low power consumption. The BU46 variant specifically utilizes CMOS output technology compared to open-drain alternatives in the broader family. It serves as a dedicated supervisory solution for maintaining system stability during power fluctuations.

Supervisors Replacement Considerations

The BD5233G-1 is listed as a similar specification replacement. Note that the substitute uses an SSOP-5 package rather than SSOP-3, requiring layout adaptation. Output configuration differs, changing from CMOS to open drain. Verify electrical parameter compatibility before implementation.