BD5234G-TR

Overview

The BD5234G-TR is a voltage detector with an adjustable delay time, manufactured by ROHM Semiconductor. It operates within a reset active voltage range of 0.95 to 10 V and features an open drain output type. The typical under-voltage detection voltage is 3.4 V with a precision of ±1%. The circuit current is 0.85 μA at VDET=4.8V for both ON and OFF states. Hysteresis voltage is defined as VDET x 0.05. The L output current is 0.4 mA at LowVol and 2 mA at HighVol. The delay circuit resistance is 9.0 MΩ. It functions in a temperature range from -40°C to 105°C. The device is housed in an SSOP5 package.

Feature Summary

• Features an adjustable delay timer for flexible reset timing control.
• Provides open drain output with low active state reset signal.
• Includes hysteresis function to prevent output fluctuation near detection threshold.

Applications

• Monitoring power supply voltages in electronic circuits
• Reset generation for microprocessors and digital systems
• Voltage supervision in portable devices

Procurement Notes

Verify the component status before procurement as this part is designated as Not Recommended for New Designs (NRND). Confirm that existing designs can continue production support. Check for alternative recommended parts like BD5234G-1 if new design implementation is required. Ensure compatibility with existing PCB layouts due to identical pinout and package dimensions.

Selection Notes

Select this component for applications requiring adjustable delay times and specific under-voltage detection thresholds around 3.4 V. Consider the open drain output capability and low standby current characteristics. Evaluate the operating temperature range suitability for the intended environment. Review the replacement options if long-term supply assurance is critical for the product lifecycle.

Part Context

The BD5234G-TR belongs to the BD52 series of voltage detectors from ROHM Semiconductor. These components are designed for monitoring power supply voltages and generating reset signals. The series includes various detection voltages and features such as adjustable or fixed delays. This specific model offers adjustable delay functionality within a compact SSOP5 package, suitable for space-constrained designs.

Replacement Considerations

The BD5234G-1 is a recommended replacement with the same pinout and package. It offers similar specifications including 3.4 V detection voltage and adjustable delay. Verify electrical parameter compatibility, particularly regarding circuit current and output drive capabilities, before substituting.