BU45K322G-TL Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Voltage Detector
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	120 ms Minimum
Voltage - Threshold:	3.2V
Operating Temperature:	-40°C ~ 105°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	3-SSOP

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Introduction

The BU45K322G-TL is a supervisor for power management integrated circuits (PMICs). Supervisors, or voltage monitors, are used to prevent erratic operation and power off of the system in the case of unwanted input and output combinations due to improper use and possible system failures. The BU45K322G-TL is a high-performance, low-power supervisor that is specifically designed for use in a wide variety of electronic products.

Features

The BU45K322G-TL is designed to provide reliable protection against faults and errors in the power supply circuit. It has a low voltage threshold of 2.6V, a wide operating temperature range of -40 to +85°C, and a very low current consumption of just 10µA in normal operation and 0.7µA in sleep mode. Other features of the BU45K322G-TL include an output voltage of 4.2V, an over-current protection of 2.5A and a high accuracy of 5%. These features make the BU45K322G-TL an ideal choice for a wide range of PMIC applications.

Application Fields

The BU45K322G-TL has a wide range of applications. It is commonly used in systems such as hi-fi amplifiers, professional sound equipment, and high-end audio systems. Additionally, its high accuracy makes it suitable for applications such as wireless modems, mobile phones, and TVs. Furthermore, the BU45K322G-TL can be used in industrial control units, LED lighting systems, and other applications that require reliable power management.

Working Principle

The BU45K322G-TL works by monitoring the input voltage of the system and controlling the output voltage. When the input voltage rises above the specified threshold, the BU45K322G-TL will activate an output voltage of 4.2V. This output voltage is then used to maintain the desired stable operating voltage in the system. In addition, the BU45K322G-TL monitors the current and will shut down the system if it exceeds 2.5A. This prevents any damage to the system due to excessive current draw.

Conclusion

The BU45K322G-TL is a high-performance and low-power supervisor for PMICs. It has a high accuracy of 5%, a low voltage threshold of 2.6V, and a wide temperature operating range of -40 to +85°C. It is suitable for a variety of applications such as hi-fi amplifiers, professional sound equipment, and high-end audio systems, mobile phones, TVs, industrial control units, and LED lighting systems. It works by monitoring the input voltage of the system and controlling the output voltage, and by monitoring the current and shutting down the system in the event of excessive current draw. It is an ideal choice for reliable power management in these systems.

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