UC2901MDREPG4

The UC2901MDREPG4 is an integrated circuit (IC) which belongs to the category of Power Management Integrated Circuit (PMIC). It is a specialized type of PMIC and this article talks about its application field and working principle.

Overview of UC2901MDREPG4

UC2901MDREPG4 is a reset circuit from ON Semiconductor which is a three part device. It has two precision voltage comparators and an R-S flip flop, all of which are surrounded by a current limiting resistor. The circuit functions in a way that when the output of the two comparators goes LOW then the flip flop will reset itself as well. The voltage levels at which the comparator will trigger the reset can be adjusted and hence the UC2901MDREPG4 can be adapted to different applications. The UC2901MDREPG4 allows for a robust reset capability and provides protection against voltage overshoot or undershoot. The IC also has the ability to control the reset with input logic signals, the logic level is adjustable.

Application Field of UC2901MDREPG4

The UC2901MDREPG4 IC has a wide range of applications in the field of power management. It is used in various power management circuits where its reset function is used to ensure a robust and reliable power reset when the circuit is disturbed or the voltage of the power supply is lower or higher than the normal range. It is frequently found on power supply circuit boards, high-end printer boards, mobile phone charger boards, and other devices where a reliable reset is required. The UC2901MDREPG4 is also useful for isolating malfunctioning chips in a circuit by providing a delayed power reset. This makes it especially useful in applications that require a portable reset such as laptop computers, handheld devices, and so on.

Working Principle of UC2901MDREPG4

The UC2901MDREPG4 works on a simple principle. When the output of the two comparators goes LOW then the flip flop will reset itself. The voltage levels that trigger the reset can be manually adjusted according to the requirements of the application. The flip flop is responsible for maintaining the reset state for the specified amount of time. This lets the power management circuit reset properly once the issue has been resolved. The flip flop also allows for the reset to be triggered by an input logic signal. The logic level of this signal should be adjusted in order to get the correct reset value.

Conclusion

The UC2901MDREPG4 is an essential part of power management systems as it is can provide reliable and robust reset capability when the power source is disturbed. It has a wide range of applications and is used in various power supply circuit boards, high-end printer boards, mobile phone charger boards, and more. The UC2901MDREPG4 works on a simple principle where the output of two comparators goes LOW and the flip flop resets itself. The voltage levels that trigger the reset are manually adjustable and the logic level of the input signal should also be adjusted accordingly.