BU46K262G-TL

Overview

The BU46K262G-TL is a supervisory circuit voltage detector manufactured by ROHM Semiconductor. It features a fixed threshold voltage of 2.5 V and a reset delay time of 200 ms. The device operates within a supply voltage range up to 6 V and consumes a quiescent current of 2.8 uA. It provides 1% accuracy and utilizes a CMOS output type. The component is housed in an SSOP-3 package, supports surface mount installation, and functions across a temperature range from -40 C to +105 C.

Feature Summary

• CMOS output interface for digital logic compatibility
• Fixed 200 ms reset delay timer for stable power-up sequencing
• Low quiescent current consumption for battery efficiency
• High detection accuracy with 1% threshold precision

Applications

• Microprocessor system reset circuits
• Battery-powered device power management
• Portable electronic equipment supervision
• Embedded system voltage monitoring

Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm that the component status aligns with design lifecycle requirements, as this part may be designated as not recommended for new designs. Ensure all electrical parameters match the target application specifications exactly.

Selection Notes

Select this component when a fixed 2.5 V threshold with CMOS output is required. Consider the SSOP-3 package constraints and the 200 ms delay characteristic. Evaluate the 2.8 uA current draw against system power budgets. Verify thermal performance within the specified operating temperature range for the intended environment.

Part Context

This voltage detector belongs to the BU45/BU46 series of supervisory circuits. It is designed for low-voltage monitoring applications requiring precise threshold detection. The series offers various threshold options and packaging configurations to support diverse embedded system needs.

Replacement Considerations

The BD5225G-1 is listed as a similar specification replacement. Note differences in package type (SSOP5 vs SSOP3) and output configuration (Open drain vs CMOS). Verify pinout compatibility and parameter alignment before substitution.