BD5339G-TR

Overview

The BD5339G-TR is a voltage detector from the BD53xx series manufactured by ROHM Semiconductor. It features an adjustable delay timer and operates within a supply voltage range of 0.95 V to 10 V. The typical under-voltage detection threshold is 3.9 V with a precision of ±1%. The device provides a CMOS output that is active low. It supports an external resistor for delay adjustment, utilizing a 9.0 MΩ internal delay circuit resistance. The component is housed in an SSOP-5 package and is rated for operation between -40°C and +105°C.

Feature Summary

• Adjustable reset delay time via external resistor connection
• CMOS output type with low-active state
• Wide operating voltage range supporting various power rails

Applications

• Microprocessor system supervision
• Battery-powered equipment monitoring
• Portable electronic device power management

Procurement Notes

Verify the Not Recommended for New Designs (NRND) status before procurement. Confirm the specific ordering suffix matches the required configuration. Ensure the SSOP-5 package dimensions align with the target PCB footprint. Validate RoHS compliance requirements against project specifications. Check for available replacement options if long-term supply stability is critical.

Selection Notes

Select this component when an adjustable delay function is required for reset timing control. The CMOS output interface suits digital logic systems directly. Consider the ±1% detection accuracy for precise threshold monitoring. Evaluate the wide input voltage range compatibility with the target power source. Review the thermal performance within the specified industrial temperature limits.

Part Context

This part belongs to the BD53xx series of voltage detectors from ROHM. These devices are designed for supervisory applications requiring reliable reset generation. The series offers various detection voltages and output types. The BD5339G-TR specifically targets applications needing programmable delay characteristics for system stability.

Replacement Considerations

The BD5239G-1 is listed as a recommended alternative with the same pinout and package. Verify the output type difference, as the replacement uses an open-drain output instead of CMOS. Confirm the adjusted accuracy and current consumption parameters meet design requirements.