BU4215FVE-TR

Overview

The BU4215FVE-TR is a supervisory circuit voltage detector manufactured by ROHM Semiconductor. It features an adjustable delay timer and operates with a supply voltage range of 0.7 V to 7 V. The device provides a low-active open-drain output with a precision of ±1% for the under-voltage detection threshold, which is typically 1.5 V. It consumes a circuit current of 0.40 μA at VDET=4.8V in the ON state and 0.55 μA in the OFF state. The component supports an operating temperature range from -40 °C to 125 °C and utilizes a VSOF5 package.

Feature Summary

• Features an adjustable delay timer for customizable reset timing.
• Provides high-precision voltage detection with ±1% accuracy.
• Delivers low quiescent current consumption for power efficiency.
• Includes hysteresis voltage set at VDET x 0.05 to prevent output oscillation.

Applications

• Portable electronic devices requiring low-power supervision
• Battery-operated systems monitoring voltage levels
• General-purpose microprocessor reset circuits

Procurement Notes

Verify the specific suffix and package variant against the official datasheet to ensure compatibility with design requirements. Confirm RoHS compliance status and check for end-of-life notices or last-time-buy recommendations directly from ROHM Semiconductor documentation before finalizing procurement plans.

Selection Notes

Select this component when a precise 1.5 V detection threshold with adjustable delay is required. Ensure the application voltage stays within the 0.7 V to 7 V operational range. Consider the VSOF5 package dimensions and thermal characteristics for PCB layout integration.

Part Context

This part belongs to the BU42xxFVE series of voltage detectors from ROHM. These components are designed for low-voltage applications, offering high accuracy and low current consumption. The series includes various fixed threshold options and package types to suit different system constraints.

Replacement Considerations

BD5215G-1 is a recommended replacement with the same pinout and similar electrical specifications, including a 1.5 V detection threshold and adjustable delay.