BD5248G-TR

Overview

The BD5248G-TR is a standard voltage detector IC manufactured by ROHM Semiconductor, designed for monitoring power supply voltages in electronic circuits. It features an adjustable delay timer to prevent false resets during power-up or transient events. The device operates within a reset active voltage range of 0.95 V to 10 V and provides an open-drain output with a low active state. Key electrical specifications include a typical under-voltage detection voltage of 4.8 V with ±1% precision. Circuit current consumption is 0.85 μA at the detection voltage for both ON and OFF states. The component supports a wide operating temperature range from -40°C to +105°C and utilizes an SSOP-5 package.

Feature Summary

• Incorporates an adjustable delay timer mechanism to ensure stable system reset timing.
• Provides open-drain output configuration compatible with various logic families.
• Maintains low power consumption suitable for battery-operated applications.

Applications

• Power supply monitoring in general electronic equipment
• Microcontroller system reset circuitry
• Portable devices requiring low standby current

Procurement Notes

Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm that the selected part matches the required reset voltage threshold and delay characteristics for the target application. Ensure compliance with RoHS standards as indicated in the product documentation. Cross-reference the supply status to confirm availability for production needs.

Selection Notes

Select this component when an adjustable delay feature is required alongside a fixed 4.8 V detection threshold. Consider the SSOP-5 package size constraints and the open-drain output limitations. Evaluate the operating temperature range requirements against the specified -40°C to +105°C limits. Compare current consumption metrics with alternative detectors if ultra-low power is critical.

Part Context

The BD5248G-TR belongs to ROHM's voltage detector family, specifically engineered for supervisory functions. It is often compared with similar parts like the BD5248G-1, which offers different precision and current characteristics. This series is intended for applications where reliable reset generation is essential for system integrity.

Replacement Considerations

The BD5248G-1TR is listed as a recommended replacement with similar specifications but may differ in precision and current consumption. Verify pinout compatibility and functional equivalence before substitution.