BU4823F-TR Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active High/Active Low
Reset Timeout:	--
Voltage - Threshold:	2.3V
Operating Temperature:	-40°C ~ 125°C (TA)
Mounting Type:	Surface Mount
Package / Case:	4-TSOP (0.049", 1.25mm Width)
Supplier Device Package:	4-SOP
Base Part Number:	BU48*

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Introduction

The BU4823F-TR is a supervisor IC with high accuracy, low current consumption, and wide working temperature range. It is designed for monitoring power rails, reset circuits and voltage regulator systems. It is suitable for 5V, 3V and 2.5V circuits and is designed for a working voltage range of 1.2V to 5.5V. The BU4823F-TR has a maximum power supply current of 1µA and its output threshold accuracy is ±1.5%.

Application Field

The BU4823F-TR is most suitable for systems that need low current consumption and high accuracy in voltage monitoring. It is well suited for power rails, reset circuits, and voltage regulator systems, as it has a wide working voltage range of 1.2V to 5.5V. Its output threshold accuracy is also excellent, with ±1.5%, ensuring that it can accurately monitor voltage levels in various circuit designs.It is commonly used in the automotive industry, communication devices, consumer electronics, and industrial equipment. It is used to protect systems from over-voltage, under-voltage, and excessive power spikes. It is also used to reset microcontrollers and quickly reset devices without being affected by power supply fluctuations or load transients.The BU4823F-TR also supports a wide range of temperature range, from -40℃ to +85℃, making it suitable for industrial and outdoor applications where temperature range is an issue.

Working Principle

The BU4823F-TR is designed to detect low voltage and output a signal, so that other circuits can respond accordingly. It works by monitoring the voltage of it’s power rail, and when the voltage drops below the set threshold, it will output a signal that can be used to initiate a reset signal.The BU4823F-TR also offers an over temperature protection circuit. It senses the temperature of the device, compares it to the set threshold and will protect the system if the temperature increases past the threshold. This over temperature protection ensures the system is protected in the event of sudden temperature spike.The BU4823F-TR also supports power down reset. When the power source fails, it will reset the circuit automatically, protecting the system in case of an unexpected power failure.The BU4823F-TR has a built-in watchdog timer. It will reset the chip and remove the reset signal when it detects that the system has not reset in time. This ensures that the system can reset quickly, without having to manually reset the chip.

Conclusion

The BU4823F-TR is an excellent supervisor IC that provides high accuracy and low current consumption, with a wide working voltage range of 1.2V to 5.5V. It is highly suitable for systems that need to monitor power rails, reset circuits, and voltage regulator systems. It supports a wide range of temperature range, from -40℃ to +85℃, making it suitable for industrial and outdoor applications where temperature range is an issue. It also supports power down reset, and a built-in watchdog timer. The BU4823F-TR is an ideal choice for accurate and reliable voltage monitoring and protection.

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