BU46K334G-TL

Overview

The BU46K334G-TL is a voltage detector IC from the ROHM BU45/BU46 series, designed for monitoring single-input power supplies. It features a fixed reset delay time of 400 ms and operates with a threshold voltage of 3.3 V. The device provides CMOS output and supports a supply voltage range up to 6 V. It maintains an accuracy of 1% and functions within a temperature range of -40°C to +105°C. Packaged in SSOP-3, it eliminates the need for external capacitors for delay setting.

Feature Summary

• Built-in counter timer delay circuit removes the requirement for external delay-setting capacitors
• High detection accuracy ensures reliable voltage monitoring within specified tolerances
• CMOS output type supports direct interface with digital logic circuits

Applications

• Microprocessor system reset circuits
• Battery-powered device power management
• Embedded system voltage supervision

Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm RoHS compliance status via current datasheets. Check for obsolescence notices as the part may be discontinued. Ensure storage conditions meet humidity sensitivity requirements before assembly.

Selection Notes

Select this component when a fixed 400 ms delay is required without external components. Choose based on the 3.3 V threshold compatibility with target systems. Consider the SSOP-3 package for space-constrained designs. Verify operating temperature range meets environmental specifications.

Part Context

Part of the BU45/BU46 series of low-current voltage detectors. These ICs integrate delay timers internally to simplify circuit design. The series offers various threshold voltages and delay options for different application needs.

Replacement Considerations

Check for BD5233G-1 as a similar specification alternative. Verify pinout compatibility and electrical parameters before substitution. Confirm package dimensions match existing PCB footprints.