BU4233G-TR

Overview

The BU4233G-TR is a CMOS low voltage detector manufactured by ROHM Semiconductor, designed for supervisory circuit applications. It operates within a supply voltage range of 0.7 V to 7 V and features a typical under-voltage detection threshold of 3.3 V with ±1% precision. The device utilizes an SSOP-5 package and provides an open-drain output type. It includes an adjustable reset delay timer but lacks manual reset, watchdog timer, or battery backup switch functionalities. The component supports a wide operating temperature range from -40°C to +125°C and consumes a typical circuit current of 0.40 µA when active.

Feature Summary

• CMOS technology ensures low power consumption suitable for battery-operated systems
• Adjustable reset delay timer allows customization of response timing
• Open-drain output configuration facilitates flexible interface integration

Applications

• Microprocessor system reset circuits
• Portable electronic device power management
• Industrial control system supervision

Procurement Notes

Verify the NRND (Not Recommended for New Designs) status before procurement, as this indicates the component is being phased out and may not be available for new production designs. Confirm availability through authorized distributors and check for end-of-life notices. Ensure that existing inventory meets long-term support requirements if continuing use in legacy products.

Selection Notes

Select this component only for maintenance of existing designs due to its NRND status. Evaluate alternative ROHM voltage detectors with similar pinouts and specifications if initiating new projects. Consider the adjustable delay feature and open-drain output compatibility with target logic levels during selection.

Part Context

The BU4233G-TR belongs to the BU42(43)xxG series of voltage detectors from ROHM Semiconductor. This series focuses on low-voltage monitoring solutions with high accuracy and low standby current. The part is housed in an SSOP-5 package, offering a compact footprint for space-constrained applications within the PMIC category.

Replacement Considerations

The BD5233G-1 is listed as a replacement with the same pinout and package. Verify functional equivalence and datasheet specifications before substitution.