BU4243G-TR Integrated Circuits (ICs)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Power Management Integrated Circuit (PMIC) is a type of integrated circuit (IC) that consists of several power regulators. In the PMIC family, supervisors occupy a unique subcategory. Supervisors, also referred to as System Monitor ICs, are primarily responsible for monitoring and regulating the supply voltage, current, and temperature of a system. Supervisors also provide an alert signal when an over/under-voltage or over/under-current situation arises. BU4243G-TR is one such device belonging to the family of supervisors and this article provides a brief overview of its application field and working principle.

BU4243G-TR is a system monitor IC that can supply an output in the ON, OFF, and STANDBY states of a system. It is an active-low supervisor and is a drop-in replacement for the common supervisory circuits LTC4151, LTC4252, and ZXGD3000E. This IC monitors VCC, VDD, and VSS voltages of a system. The output level of VCC pin is suitable for small or large current load operations. It additionally provides a reset signal when these voltages rise or fall below the regulated level. The OFF state is maintained until the voltage of VCC, VDD, and VSS rise to predetermined levels.

BU4243G-TR is an ideal IC for system control applications, such as, PC motherboards and routers. It can also be used in automotive applications, such as, ABS controllers and multifunction display systems. It has a supply voltage range of 4.5V to 5.5V, operating temperature range of -40℃ to 100℃, and input voltage accuracy of 1%. BU4243G-TR features a built-in timer to ensure a reset signal is issued when the power supply system is fluctuating or unstable. This makes it the perfect IC for system protection.

The working principle of the BU4243G-TR can be explained as follows. By regulating the voltage of VCC, VDD and VSS, it provides an output signal to the system. When the voltage of any of the pins falls below the regular level, a reset signal is issued by the IC. This reset signal keeps the system in the OFF or STANDBY mode. If the voltage rises to its regular level, the system returns to the ON mode and a high-level signal is issued by the IC. The reset signal can be either active-low or active-high, depending upon the user\'s requirements. It is also possible to adjust the hysteresis value, that is, the difference between the rising and falling threshold.

In conclusion, BU4243G-TR is an active-low supervisor with an operating voltage of 4.5V to 5.5V. It monitors the supply voltage and current of a system, providing a reset signal whenever an over/under-voltage or over/under-current situation arises. The reset signal keeps the system in the OFF or STANDBY state and an output signal is issued when the voltage returns to its normal level. BU4243G-TR is ideal for system control applications, such as, PC motherboards and routers, as well as automotive applications, such as, ABS controllers and multifunction display systems. It provides efficient system protection and is a drop-in replacement for the common supervisory circuits.

The specific data is subject to PDF, and the above content is for reference