MC33160DWR2G Integrated Circuits (ICs)

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MC33160DWR2G is an intelligent, multifunctional, low power, CMOS voltage supervisor for monitoring multiple supplies during power-up, power-down, and system operation. It is designed to replace many industry standard mil-grade monitors in consumer, industrial, and communication engineering applications. Typically, the device is connected to a voltage rail, such as 3.3V or 5V, and monitors the line to detect when the rail is below a predefined threshold. It also includes open-drain outputs as status indicators; indicating the status of the voltage rail to other microcontrollers or processors in the system.

The MC33160DWR2G\'s features and functions make it an ideal choice for many applications, including embedded microcontroller applications, portable electronics, system bus voltage monitoring, distributed power supply monitoring, and remote monitoring. It can also be used in a variety of low power, battery-backed microcontrollers in consumer, industrial, and communication engineering applications.

MC33160DWR2G is a versatile, multifunctional voltage supervisor that has been designed with a range of features to ensure reliable power-up and power-down operations. Its main functions include on-chip brown-out protection, power-on reset, width regulation and undervoltage protection, as well as open-drain output and push-pull output. It also has an adjustable brown-out detection threshold, and built-in adaptive hysteresis for increased accuracy. Additionally, it includes programmable pull-up / pull-down resistors, allowing the user to select one of two preset values to adapt the device to the voltage rails in their power supply.

The MC33160DWR2G also features an output glitch filter, which eliminates short duration disturbances on the output and prevents false-triggering of the power-on reset output from pulse signals. Its low reset/threshold delay ensures quick response to voltage-level changes, and the on-chip delay timer can be used to further adjust the reset/threshold response time. Additionally, the device comes in a compact 8-pin SOIC package and has a wide operating temperature range of -40°C to 105°C.

MC33160DWR2G Application Fields:

• Embedded microcontroller applications
• Portable Electronics
• System Bus Voltage Monitoring
• Distributed Power Supply Monitoring
• Remote Monitoring
• Battery-Backed Microcontrollers in Consumer, Industrial, and Communication Engineering Applications

MC33160DWR2G Working Principle:

When power is applied to the MC33160DWR2G, the device monitors the voltage rail, comparing it to its adjustable brown-out threshold. If the voltage drops below the threshold, the MC33160DWR2G triggers the open-drain output and sets the push-pull output pin. Both outputs are held until the voltage rail rises to its predefined threshold and the reset timer is released. The device also has an adjustable reset / threshold delay which is used to delay the reset / threshold release in order to ensure a safe startup sequence.

The device also includes a glitch filter, which prevents false-triggering of the reset pin due to transient pulses, and offers additional flexibility in the set-up. Additionally, the user can adjust the output hold time of the open-drain output by selecting one of two sets of pull-up/pull-down resistors, allowing the user to tailor the device to their particular application.

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