BD5345FVE-TR

Overview

The BD5345FVE-TR is a voltage detector IC from ROHM Semiconductor featuring an adjustable delay timer. It operates within a supply voltage range of 0.95 V to 10 V with a typical under-voltage detection threshold of 4.5 V and ±1% precision. The device utilizes a CMOS output type, providing a low-active reset signal without manual reset or watchdog capabilities. It consumes approximately 0.85 μA at VDET=4.8 V and includes hysteresis defined as VDET x 0.05. The component supports a delay circuit resistance of 9.0 MΩ and functions across a temperature range of -40°C to 105°C in a VSOF5 package.

Feature Summary

• Features an adjustable delay timer for customized reset timing control
• Provides high-precision voltage monitoring with ±1% detection accuracy
• Utilizes CMOS output structure for low-active reset signaling
• Operates with ultra-low current consumption suitable for battery-powered systems

Applications

• Portable electronic devices requiring precise power management
• Battery-operated equipment needing reliable under-voltage protection
• Industrial control systems utilizing wide operating temperature ranges
• Consumer electronics requiring compact surface-mount supervision circuits

Procurement Notes

Verify the specific ordering suffix and packaging configuration against official ROHM documentation before procurement. Confirm that the VSOF5 package dimensions align with your PCB footprint requirements. Ensure compliance with RoHS directives if applicable to your manufacturing standards. Check current supply status as this component may be subject to availability constraints or end-of-life notices.

Selection Notes

Select this component when a CMOS output interface and adjustable delay functionality are required for voltage supervision. Consider the 4.5 V detection threshold and 10 V maximum supply voltage limits for compatibility with your system rails. Evaluate the 0.85 μA current consumption against power budget constraints. Verify that the VSOF5 package size fits within your available board space constraints.

Part Context

This part belongs to the BD53xx series of voltage detectors from ROHM Semiconductor, designed for supervisory applications. It shares functional similarities with other parts in the family but offers specific threshold and package variations. The BD5345FVE-TR represents a specialized variant optimized for adjustable delay timing and CMOS output characteristics within the broader portfolio of power management integrated circuits.

Replacement Considerations

BD5245G-1 is identified as a recommended replacement with the same pinout. Verify electrical parameter compatibility, particularly regarding output type differences (CMOS vs. Open Drain) and reset active voltage ranges before substitution.