DS1834AS+T&R

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PMIC (Power Management Integrated Circuit) supervisors are utilized in embedded systems to monitor and control the power supply. The DS1834AS+T&R is one of them, a supervisory circuit that offers a reliable reset and a watchdog timer circuit, providing system engineers and top power manager design engineers with a cost-effective solution. Understanding both the application field and the working principle of this PMIC supervisor has become important.

Application Field

The DS1834AS+T&R is an integrated power management design hub for many applications such as digital set-top boxes, thin clients, network storage devices, and portable consumer applications. Because of its integrated power management design hubs, the device can be used in a host of applications that require a wide range of input voltages and variable load currents.

The DS1834AS+T&R is designed to monitor and control the voltage levels and power on the embedded system. It offers the following features, providing advanced power management strategy:

• Wide operating range: The operating range of this chip is +1.8~3.3V.
• Integrated circuits: includes a number of integrated circuits, including comparators, oscillators, and a reset circuit.
• Multi-channel control: Supports two independent control lines.
• Power down function: Supports power down and reset, wake-up and read cycles.
• Low power consumption: provides a very-low standby power consumption.
• Integrated voltage detector: Built in voltage detection circuit provides voltage detection accuracy.
• Interrupt control: supports both hardware and software interruption control.
• Wake-up detection: supports wake-up detection.

Apart from the above mentioned features, there are other features that make this PMIC supervisor a great choice for embedded systems.

Working Principle

The primary working principle of the DS1834AS+T&R is to monitor and control the voltage levels and power on the system using its various integrated circuits. The device features four output levels that allow for voltage monitoring, variable load current control and reset.

The device features a comparator, an oscillator and a reset circuit. These components work together to monitor the voltage levels, control the variable load current, and reset the system. The comparator monitors the input voltage levels, and when they reach the specified levels, it triggers an interrupt and initiates the reset process. The oscillator is responsible for keeping track of the frequency of the comparator, and the reset circuit is responsible for resetting the system and forcing it to enter the appropriate power state.

The DS1834AS+T&R also supports wake-up detection. This feature ensures that the system can resume normal operation after it has been in power down or standby states. This feature is especially helpful in applications that require low-power operation and system wake-up events.

Finally, the DS1834AS+T&R offers a very-low standby power consumption so that it can be used in applications that require minimal power usage. Its integrated voltage detector provides voltage detection accuracy, and its multi-channel control with two independent control lines makes it a great choice for controlling multiple outputs.

In conclusion, understanding the application field and working principle of this PMIC supervisor will help engineers to select the best power management integrated circuit for their applications. The DS1834AS+T&R offers an efficient, cost-effective solution for power management, and its features make it a great choice for embedded systems.

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