BU4213FVE-TR

Overview

The BU4213FVE-TR is a voltage detector IC manufactured by Rohm Semiconductor, designed for monitoring single-channel power supply voltages. It features an adjustable delay timer and operates within a reset active voltage range of 0.7 to 7 V. The typical under-voltage detection threshold is 1.3 V with a precision of ±1%. The device utilizes an open-drain output type and maintains low circuit current consumption, specified at 0.40 μA in the ON state and 0.55 μA in the OFF state when VDET is 4.8 V. It supports a wide operating temperature range from -40°C to +125°C and is housed in a compact 5-VSOF package measuring 1.6x1.6 mm with a thickness of 0.6 mm.

Feature Summary

• Adjustable delay timer functionality allows customization of reset timing based on external components.
• Open-drain output configuration provides flexibility for interfacing with various logic levels.
• High accuracy voltage detection ensures reliable system supervision with minimal error margins.

Applications

• Portable electronic devices requiring low-power voltage supervision
• Battery-operated equipment needing precise under-voltage detection
• General-purpose industrial control systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific environmental certifications required by your region. Ensure the ordering part number matches the exact suffix requirements for tape-and-reel packaging. Review datasheet revisions for any updates regarding pin configurations or electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when a single-channel voltage monitor with adjustable delay is required. Consider the 5-VSOF package size constraints and the open-drain output capability. Evaluate the 1.3 V detection threshold against your system's minimum operating voltage. Verify that the adjustable delay feature meets your startup sequence requirements compared to fixed-delay alternatives.

Part Context

This part belongs to the BU42xx series of voltage detectors from Rohm Semiconductor. It is specifically designed for applications requiring precise voltage monitoring with customizable timing delays. The FVE suffix indicates the VSOF5 package variant. This series is commonly used in consumer electronics and industrial applications where space-saving surface-mount packages are preferred.

Replacement Considerations

BD5213G-1 is listed as a recommended replacement with the same pinout. Note that BD5213G-1 uses an SSOP5 package instead of VSOF5. Verify mechanical fit and thermal performance differences between the two packages before substitution.

FAQ

What determines the delay time in the BU4213FVE-TR?

The delay time is adjustable and determined by an external resistor connected to the device.

Is the BU4213FVE-TR suitable for automotive applications?

No, the component is not designated for automotive use according to official specifications.