BD48K40G-TL

Overview

The BD48K40G-TL is a voltage detector IC from ROHM Semiconductor, designed for monitoring power supply levels in electronic circuits. It features an N-channel open-drain output and operates within a supply voltage range of 2.3 V to 10 V. The device provides a precise detection threshold of 4.0 V with an accuracy of ±1%. It includes a reset delay time of 100 µs and hysteresis voltage defined as Vs x 0.05. The component supports a wide operating temperature range from -40 °C to +105 °C and is housed in a compact SOT-23-3 package.

Feature Summary

• High-accuracy voltage detection with ±1% precision
• Ultra-low current consumption for battery-powered applications
• N-channel open-drain output configuration
• Integrated reset delay timer for stable operation

Applications

• Microprocessor system supervision
• Battery voltage monitoring
• Power management circuit protection
• Embedded system reset generation

Procurement Notes

Verify the specific suffix 'TL' indicates tape and reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors. Ensure the selected variant matches the required 4.0 V threshold and SOT-23-3 package dimensions for PCB compatibility. Cross-reference part numbers to avoid confusion with similar BD48 series devices having different thresholds or output types.

Selection Notes

Select this component when a fixed 4.0 V detection threshold is required for single-input voltage monitoring. Consider the open-drain output capability for interfacing with various logic levels. Evaluate the 100 µs reset delay against system timing requirements. Verify that the operating temperature range meets environmental conditions. Compare against other BD48 series parts if different voltage thresholds are needed.

Part Context

The BD48K40G-TL belongs to the BD48xxx series of highly accurate, low-current voltage detector ICs. This family offers N-channel open-drain outputs and covers detection voltages from 2.3 V to 6.0 V in 0.1 V increments. The series is designed for applications requiring reliable power supervision with minimal quiescent current draw.

Replacement Considerations

BD48K40G-TL is listed as active. No direct public substitute part numbers are confirmed in the provided data.