MC34164LP

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Introduction:

MC34164LP is a three-terminal, adjustable voltage monitor and two-channel open drain power reset supervisor for power rail control and system reset applications. It features an adjustable voltage monitoring circuit, watchdog timer, manual reset input and two open drain reset outputs. It offers precise voltage detection and reset timing control, excellent signal conditioning and a wide temperature range..

Application Field:

The MC34164LP is ideal for use in a variety of applications including consumer electronics, industrial equipment, telecommunications, automotive and more. It is suitable for providing power-on reset and monitoring functions for power supplies, microprocessors, analog circuits, and digital logic. It is also well suited for battery-powered systems where precise voltage monitoring is necessary.

In consumer electronic products, the MC34164LP provides a power-on reset signal to initialize the operating system, to implement a watchdog timer, and to detect voltage drop. In industrial and automotive equipment, it can detect and kickstart the microcontroller when system reset is initiated. In telecommunications, it serves as a vital component in power system management for power rail control, where it is used to provide voltage programming and system reset.

Working Principle:

The MC34164LP is a three-terminal, adjustable voltage monitor and two-channel open drain power reset supervisor. The MC34164LP includes adjustable voltage monitoring and two open drain reset outputs. The adjustable voltage monitoring circuit provides precise voltage detection, while the watchdog timer monitors system conditions and provides extra protection against unexpected reset activities.

The device includes a dedicated SET pin which is used to program the desired voltage threshold, and a RESET pin which output a reset signal if the input voltage is below the programmed threshold. The reset signal is an active low signal indicating system reset. The two open drain outputs of the device can be connected to other system components, allowing for further reset control. The open drain outputs are used to control additional devices attached to the system RESET pin, allowing for a more complex system reset operation.

The MC34164LP also features a manual reset input. This pin can be used to override the voltage detection and output a reset signal, regardless of the voltage level. This allows for manual reset controllers to be connected to the MC34164LP in order to manually control the reset signals. The device also has a wide temperature range, providing excellent signal conditioning during power-on transients.

In summary, the MC34164LP is a three-terminal, adjustable voltage monitor and two-channel open drain power reset supervisor. It is ideal for providing power-on reset and monitoring functions for power supplies, microprocessors, analog circuits, and digital logic. It offers precise voltage detection and reset timing control, excellent signal conditioning and a wide temperature range.

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