DS1236A-5

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PMIC - Supervisors

The DS1236A-5 is a PMIC (Power Management Integrated Circuit) supervisor, a device designed to simplify the design and power up of embedded systems by monitoring and controlling the system-level circuitry. It is a CMOS (Complementary Metal Oxide Semiconductor) based device integrated with a wide-range of features that are geared to improve the circuit’s operation while prolong its life. It is suitable for use in applications such as power control/management, voltage monitoring, watchdog timer, and microprocessor supervisor.

Application Field

The DS1236A-5 supervisor is widely used in applications that require monitoring the voltage levels of the system either for a certain range, or for the presence of a certain amount of current. It is ideal for use in embedded systems such as microprocessor-based circuits, embedded controllers, digital systems, and microcontrollers to be used in various devices like personal computers, portable computing systems, and other industrial products. It can also be used in various telecommunications applications such as base station controllers, routers, logging units, and set-top boxes.

Working Principle

The DS1236A-5 supervisor works by monitoring the voltage level of the system and comparing it against the reference voltage that is set. If the voltage level falls below the reference voltage, the supervisor will generate a reset signal to reset the system. The supervisor also includes an alarm and shutdown logic that monitors the system that if the system has reached its maximum operating temperature, the alarm will be triggered and the system will be shut down.

The supervisor also utilizes the watchdog timer feature that enables the monitoring of the state of system’s activity. If the activity does not occur within a specified time period, the supervisor will issue a reset signal to reset the system. This feature is useful in avoiding system crashes and ensuring that the system is running reliably.

It also has an on/off control feature that allows the system to be easily shut down when necessary. The supervisory circuit also includes an open drain output that can be used to control external devices or circuits. This open drain output is capable of allowing up to 500mA current and can be used to control LED indicators, external drivers, and other types of equipment.

The DS1236A-5 supervisor is equipped with multiple protection features to prevent overvoltage, undervoltage, time-out reset, and over-temperature. It also has a built-in voltage regulator that can be used to regulate the voltage level within the predetermined range. This helps in extending the life of the system and its components. The supervisor is capable of operating from a wide range of input voltages, ranging from 6.25V to 36V.

The DS1236A-5 Supervisor is an ideal device for use in embedded systems that require reliable system monitoring, resetting, and control. Its wide range of features makes it an ideal solution for managing the overall operation of the system and ensuring that the system is running reliably. This makes it a great choice for any application that requires reliable system-level monitoring and control.

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