MC33160DWG

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PMIC (Power Management Integrates Circuits) are generally integrated circuits used to manage power in electronic circuits. Among the various types of PMICs, Supervisors, also known as Voltage Supervisors, protect the system from a sudden power failure due to an over-voltage or under-voltage. MC33160DWG is one of the most popular voltage supervisors available in the market. It has a wide application, ranging from consumer and commercial to industrial level. This article will discuss the application field and working principle of MC33160DWG in detail.

MC33160DWG is mainly used for detecting overvoltage and undervoltage conditions for applications such as AC/DC adapters, power supplies, and motor controlling systems. It uses an LM1117-5.0 voltage regulator and a Zener Diode for setting the voltage threshold for detecting an over-voltage or an under-voltage condition. The LM1117-5.0 voltage regulator is capable of working over a wide input voltage range from 4V to 24V, and has an output voltage of 5V. It also provides several protection features such as short circuit protection, over-current protection, over-temperature protection, and a low quiescent current.

In addition to voltage regulation, MC33160DWG also provides an undervoltage monitoring functionality. It has two separate terminals for determining the expected input voltage, one being a reference input and the other being a switch terminal. The reference input is connected to a stable voltage source, such as a battery, while the switch terminal is connected to the main power supply. When the input voltage drops below the reference input, the MC33160DWG switches off the load and initiates a shutdown procedure.

For overvoltage protection, MC33160DWG uses a Zener diode. The Zener diode has a breakdown voltage of 5.3V and is connected across the N-Channel MOSFET. When the input voltage exceeds the Zener’s breakdown voltage, a current flows through the Zener diode and the MOSFET, triggering a voltage-limit condition. The trigger voltage can be changed by changing the value of the resistor connected to the MOSFET, thus allowing for precise control of the maximum output voltage.

Finally, MC33160DWG has an input voltage range of 4V to 24V, and a current rating of up to 1A. It also has an operating temperature range of -40°C to +85°C, making it suitable for a wide variety of applications. The MC33160DWG is also RoHS compliant, making it eco-friendly.

To sum up, MC33160DWG is a popular voltage supervisor IC with a wide range of applications. It has a wide input voltage range, an adjustable voltage-limit feature, and a wide temperature range. It can also be used for monitoring undervoltage conditions, as well as for overvoltage protection. Furthermore, the IC is RoHS compliant and eco-friendly. For these reasons, the MC33160DWG is one of the best voltage supervisors available today.

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