DS1232LPS-2+

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PMIC (Power Management Integrated Circuit) is a type of integrated circuit used to control, monitor and regulate various components in a system. Supervisors, as a subset of PMICs, are used to provide powerful and reliable monitoring functions, like voltage supervision or circuit protection. With the rapid development of relevant technologies, supervisors have been widely used in many fields, such as industrial automation, consumer electronics, telecom, medical and automotive.

The DS1232LPS-2+ is a low-power supervisor with a wide range of applications and features. It provides 2 power supply monitoring outputs, internal temperature monitoring, and active low reset output with adjustable threshold voltages. With a push button available on board, the device is designed to be used in a wide range of industrial, automotive, medical, and consumer electronics applications.

The DS1232LPS-2+ integrates positive voltage monitoring, temperature monitoring, and manual reset monitoring functions into a single chip. It is designed to monitor the main supply voltage and guard the power supply from potential corruption from misprocessing voltage dip, drop, surge, or high current. It also provides integrated temperature protection to guard the system from thermal runaways. Additionally, the DS1232LPS-2+ has an internal manual reset button, which is used to reset the system after an error occurs.

The DS1232LPS-2+ is ideal for use in battery-powered systems, portable devices and portable instruments. Its low power operation allows it to be used in low-power devices and equipment that require a low-cost solution. It is also suitable for use in communication lines, factory automation systems, consumer electronics, and medical equipment where regulated voltage is critical.

The working principle of the DS1232LPS-2+ is based on its voltage monitoring and temperature monitoring functions. It monitors two independent main supply voltages and provides two independent power supply monitoring outputs for power status indication. Both outputs use TTL level logic and provide open-drain output capability. The device can be programmed to operate from the most common voltages, from 1.8V to 5V, when needed.

The temperature monitoring function of the DS1232LPS-2+ provides a quick indication of over-temperature conditions. This over-temperature indication output is to be connected to an interrupt controller or a comparator circuit that can reset or enable an external device. It uses an external NTC to sense the system temperature, and the threshold is digitally programmable.

Finally, the active low reset output of the device is controlled by a digital reset generator, which monitors the voltage and temperature signals and generates a reset signal if needed. It has an adjustable reset threshold voltage range from 1.3V to 4.6V. The reset signal is active when the supply voltage is below its threshold. The reset duration is adjustable from 1.4ms to 16s using a resistive divider with one additional capacitor.

In conclusion, the DS1232LPS-2+ is a low-power, Supervisor IC with a wide range of applications and features. It provides integrated voltage and temperature monitoring, and active low reset outputs. It can be used in a wide range of industrial, automotive, medical, and consumer electronics applications. The working principle of the DS1232LPS-2+ is based on its voltage and temperature monitoring, as well as its adjustable reset threshold voltage and adjustable reset duration.

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