BU4232F-TR

Overview

The BU4232F-TR is a CMOS voltage detector with an adjustable delay time, manufactured by ROHM Semiconductor. It features a detection threshold voltage of 3.2V with ±1% precision and operates within a reset active voltage range of 0.7V to 7V. The device utilizes an open-drain output type and provides low current consumption, drawing 0.40μA in the ON state and 0.55μA in the OFF state at VDET=4.8V. It supports a temperature range from -40°C to 125°C and is housed in a SOP4 package measuring 2.0x2.1mm.

Feature Summary

• Built-in adjustable delay circuit for customizable reset timing
• High accuracy voltage detection with ±1% precision
• Low current consumption suitable for battery-powered applications
• Wide operating voltage range supporting various power supply levels

Applications

• Microprocessor system reset circuits
• Battery voltage monitoring
• Power supply supervision in portable devices
• Embedded system protection against under-voltage conditions

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for last-time-buy notices as availability may be limited. Ensure packaging specifications match design requirements before procurement.

Selection Notes

Select this component when precise voltage monitoring with flexible delay settings is required. Consider the open-drain output compatibility with downstream logic levels. Evaluate thermal performance within the specified operating temperature range for reliability.

Part Context

Part of the BU42xx series of CMOS voltage detectors designed for high accuracy and low power consumption. This series offers multiple detection voltages and output types to suit diverse application needs across industrial and consumer electronics markets.

Replacement Considerations

BD5232G-1 is listed as a same pinout replacement option but uses SSOP5 packaging instead of SOP4. Verify mechanical fit and electrical parameter compatibility before substitution.

FAQ

What is the typical current consumption of the BU4232F-TR?

The circuit draws 0.40μA in the ON state and 0.55μA in the OFF state at VDET=4.8V.

Does the BU4232F-TR include a manual reset function?

No, the device does not feature a manual reset input.