BU4236G-TR

Overview

The BU4236G-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-input power supply voltages. It features an adjustable reset delay timer and operates within a supply voltage range of 0.7 V to 7 V. The device provides a typical under-voltage detection threshold of 3.6 V with a precision of ±1%. It utilizes an open-drain output type and maintains low power consumption, with a circuit current of 0.55 μA at the off state (VDet=4.8V). The component is housed in an SSOP-5 package and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Adjustable reset delay timer functionality allows customization of response timing without external components.
• Low power consumption design ensures minimal current draw during operation and standby states.
• High accuracy voltage detection with ±1% precision for reliable system supervision.

Applications

• Portable electronic devices requiring efficient power management
• Battery-operated equipment needing low quiescent current
• General-purpose voltage monitoring in consumer electronics

Procurement Notes

Verify the obsolete status before procurement as this part is marked Not Recommended for New Designs (NRND). Confirm availability through authorized distributors for existing production needs. Ensure compatibility with SSOP-5 footprint requirements. Check RoHS compliance documentation for regulatory adherence. Validate supply chain stability due to potential discontinuation risks associated with legacy components.

Selection Notes

Select this component when an adjustable delay timer is required alongside low power consumption. Consider the open-drain output configuration for interface compatibility with downstream logic. Evaluate the 3.6 V threshold against target system voltage levels. Assess the SSOP-5 package constraints for PCB layout. Compare performance metrics with newer recommended alternatives if designing new systems.

Part Context

This component belongs to the BU42(43)xxG series of supervisory circuits from ROHM Semiconductor. It is categorized under PMIC - Power Management ICs. The device serves as a voltage detector specifically optimized for low-voltage applications. Its design focuses on providing precise monitoring with minimal energy usage in compact packages suitable for space-constrained designs.

Replacement Considerations

The BD5236G-1 is listed as a similar level replacement with the same pinout and package. Verify functional equivalence regarding adjustable delay and output characteristics before substitution.