CAT1161LI25

PMIC - Supervisors are electronic devices used for supervising the operating conditions of a wide variety of applications. In this article, we will be discussing the CAT1161LI25 application field and working principle.

CAT1161LI25 is a tiny chip, and it is a low-power supervisor IC (Integrated Circuit) from ONSEMI (ON Semiconductor). It is a voltage supervisor device with two independent inputs, two digital outputs, and an overtemperature alarm. This chip has been specifically designed to monitor power supplies, battery-derived voltage supplies and microprocessor control systems.

The CAT1161LI25 is employed to detect over and undershoots of voltages in various applications. It is composed of an undervoltage and an overvoltage comparator which has been designed to monitor the voltages of the ICs’ power supplies. The IC sends a logic-high output when the monitored supply is above or within the acceptable range limits, and sends a logic-low output when the voltage is outside the limits. When the overtemperature exceeds its preset threshold, the chip sends an active-low TEM (temperature) output.

Here is how the CAT1161LI25 works: when the voltage measures below the lower limit VCRIT1 (critical input1) or above the upper limit VCRIT2 (critical input2) or when the temperature exceeds the preset over-temperature limit, it sends a logic-low output; otherwise it sends a logic-high output. The voltage on the IN3 input pin controls the action of the camera reset. Setting the alarm mode will give the customer an alarm output to detect an overtemperature condition.

The CAT1161LI25 is commonly used in a variety of applications such as mobile phone power management, portable device power management, overvoltage and undervoltage monitoring, computer system power management, embedded system power management and many more. This chip has some useful features such as very high accuracy (as low as ±2%), fast response time, adaptive offset voltage, adjustable trip-point levels and a wide range of operating temperatures.

In conclusion, the CAT1161LI25 application field and working principle has been discussed in this article. This chip is a great low-power supervisor IC that can be used in a wide variety of applications. It has some great features, such as very high accuracy, fast response time and a removable overtemperature alarm.