BD48K43G-TL

Overview

The BD48K43G-TL is a processor supervisor voltage detector manufactured by Rohm Semiconductor. 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 fixed detection threshold of 4.3 V with a reset delay time of 100 µs. It is housed in a 3-pin SSOP package and supports an operating temperature range from -40 °C to +105 °C.

Feature Summary

• Provides precise under-voltage monitoring for digital logic circuits
• Features low power consumption suitable for battery-operated systems
• Includes built-in hysteresis to prevent output oscillation during voltage transitions

Applications

• Microprocessor system reset circuits
• Battery-powered equipment voltage supervision
• Portable electronic device power management

Procurement Notes

Verify the specific suffix 'TL' confirms the tape-and-reel packaging configuration required for automated assembly processes. Confirm RoHS compliance status and lead times directly with authorized distributors, as availability may vary across regions. Ensure the 3-SSOP package dimensions match the target PCB footprint design constraints.

Selection Notes

Select this component when a fixed 4.3 V threshold is required for system supervision. The open-drain output allows flexible interfacing with various logic families. Consider the 100 µs reset delay for timing requirements. Verify that the 3-pin SSOP package fits the available board space compared to alternative SOT-23 options.

Part Context

This part belongs to the BD48 series of highly accurate, low-current voltage detectors. The series offers multiple detection voltages in 0.1 V increments. The BD48K43G-TL specifically targets applications requiring a 4.3 V trip point with minimal quiescent current draw.

Replacement Considerations

BD48K43G (Tape & Reel) is a direct equivalent within the same family. BD5243G-1 is listed as a recommended replacement with similar specifications but utilizes a different SSOP-5 package.