BD5340G-TR

Overview

The BD5340G-TR is a CMOS voltage detector IC from ROHM Semiconductor, designed for monitoring supply voltages in electronic circuits. It features a typical under-voltage detection threshold of 4.0 V with a precision of ±1%. The device operates within a reset active voltage range of 0.95 V to 10 V and supports an adjustable delay timer controlled by an external capacitor. It draws ultra-low current consumption, typically 0.85 µA at the detection voltage. The component is housed in a compact SSOP-5 package and functions without manual reset or watchdog capabilities.

Feature Summary

• Adjustable delay time setting via external capacitor connection
• CMOS output type providing low-level reset signal
• Ultra-low current consumption for power efficiency
• High accuracy detection voltage with ±1% precision

Applications

• Microcontroller reset circuits requiring specific voltage thresholds
• Logic circuit supervision for system stability
• Battery-powered devices needing low standby current
• Portable equipment with limited power resources

Procurement Notes

Verify the lifecycle status before procurement, as this component may be marked Not Recommended for New Designs (NRND). Confirm that the SSOP-5 package dimensions match your PCB footprint requirements. Ensure the external capacitor selection aligns with the desired delay time specifications. Check RoHS compliance documentation if required for your manufacturing process. Validate the 4.0 V detection threshold against your system's minimum operating voltage needs.

Selection Notes

Select this component when a fixed 4.0 V detection threshold is required with CMOS output logic. Consider the adjustable delay feature if timing synchronization with other system events is necessary. Evaluate the ultra-low current consumption benefits for battery-operated applications. Compare the SSOP-5 package size constraints against available board space. Assess the ±1% accuracy tolerance against your system's voltage margin requirements.

Part Context

This part belongs to the BD53xx series of free delay time setting CMOS voltage detector ICs from ROHM. The series includes various detection voltages ranging from 2.3 V to 6.0 V in 0.1 V increments. The BD5340G-TR specifically targets applications requiring a 4.0 V threshold. It shares common features like adjustable delay and low current consumption with other members of the family but differs in its specific detection voltage and output characteristics.

Replacement Considerations

The BD5240G-1 is listed as a replacement with the same pinout and package. Verify compatibility regarding the open-drain output type of the substitute versus the CMOS output of the original. Check if the slightly different reset active voltage range and hysteresis values meet your design requirements.