BD5342FVE-TR

Overview

The BD5342FVE-TR is a voltage detector IC from Rohm Semiconductor featuring an adjustable delay timer. It operates within a supply voltage range of 0.95V to 10V with a typical under-voltage detection threshold of 4.2V and ±1% precision. The device utilizes a CMOS output type, providing low-level reset signals. It supports a wide operating temperature range from -40°C to 105°C and consumes approximately 0.85μA in both ON and OFF states at VDET=4.8V. The component is housed in a compact VSOF5 package measuring 1.6x1.6mm with a thickness of 0.6mm.

Feature Summary

• Features an adjustable delay timer for customizable reset timing
• Provides high-precision voltage detection with ±1% accuracy
• Utilizes CMOS output structure for direct logic interfacing
• Operates across extended industrial temperature ranges

Applications

• Microprocessor system supervision
• Portable equipment power management
• Battery-operated device monitoring

Procurement Notes

Verify the specific ordering suffix and packaging configuration against current distributor listings. Confirm RoHS compliance status and check for last-time-buy notifications as availability may be restricted. Ensure the VSOF5 package dimensions match your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when precise voltage monitoring with customizable reset delays is required. The CMOS output allows direct connection to digital logic without additional pull-up resistors. Consider the low quiescent current for battery-sensitive designs. Verify that the 4.2V detection threshold aligns with the target system's minimum operating voltage requirements.

Part Context

This part belongs to the BD53xx series of voltage detectors designed for general-purpose power management. It serves as a supervisory circuit for ensuring stable operation of digital systems by monitoring supply rails. The VSOF5 package offers a small form factor suitable for space-constrained portable electronics and embedded applications requiring reliable power sequencing.

Replacement Considerations

BD5242G-1 is documented as a same-pinout replacement option. Verify compatibility regarding output type differences (CMOS vs Open Drain) and reset active voltage range variations before substitution.