BU45K382G-TL

Description：IC SUPERVISOR 1 CHANNEL 3SSOP
Series：BU45Kxxx
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR)

SKU:5207f1d1be92 Category: Supervisors Brand: Rohm Semiconductor

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Product introduction

Product Detailed Parameters

Description：IC SUPERVISOR 1 CHANNEL 3SSOP
Series：BU45Kxxx
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR)
Type：Voltage Detector
Number of Voltages Monitored：1
Voltage - Threshold：3.8V
Output：Open Drain or Open Collector
Reset：Active Low
Reset Timeout：120ms Minimum
Operating Temperature：-40°C ~ 105°C (TA)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：3-SSOP
Grade：-
Qualification：-

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BU45K382G-TL

Overview

The BU45K382G-TL is a fixed-delay voltage detector manufactured by ROHM Semiconductor, designed for supervisory circuit applications. It features a threshold voltage of 3.8 V with an accuracy of ±1%. The device operates within a supply voltage range of 0.6 V to 6 V and includes a fixed reset delay timer of 200 ms. It utilizes an open-drain output type without manual reset or watchdog timer capabilities. The component is housed in an SSOP-3 package, suitable for surface mount installation. It supports an operating temperature range from -40°C to +105°C and consumes a typical operating current of 2.8 µA.

Feature Summary

Fixed threshold voltage detection at 3.8 V with high precision
Open-drain output configuration for flexible interfacing
Compact SSOP-3 surface-mount packaging for space-constrained designs

Applications

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

Procurement Notes

Verify the obsolete status of this component before integration into new designs. Confirm availability through authorized distributors or secondary markets. Ensure compatibility with existing PCB footprints if replacing legacy units. Check RoHS compliance documentation for regulatory adherence. Validate supply chain reliability due to discontinuation.

Selection Notes

Select this component when a fixed 3.8 V threshold with open-drain output is required. Consider the 200 ms delay for noise immunity needs. Evaluate the low current consumption for battery efficiency. Compare against similar BU45 series variants for different thresholds. Assess package constraints for SSOP-3 compatibility.

Part Context

Part of the BU45/BU46 series of voltage detectors from ROHM. Designed for general-purpose supervisory applications. Offers fixed delay options for stable reset generation. Compatible with standard CMOS logic levels. Provides reliable performance across industrial temperature ranges.