S-80852CNPF-B9DTFU

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Power Management Integrated Circuits (PMICs) are specialized semiconductor devices that control various system functions such as voltage regulation, power monitoring, thermal management and sensor driving. They are usually used to regulate the operating environment and provide protection against faults, overcurrents and other abnormal operating conditions.

PMIC-Supervisors are a special type of PMIC boards which are specifically designed for monitoring and controlling power systems like central power supplies, energy monitoring and micro-controllers. PMIC-Supervisors generally have multiple output voltage and current settings in order to support different power supply configurations.

The S-80852CNPF-B9DTFU PMIC-Supervisor is a single-channel supervising PMIC device. It provides system monitoring and control functions for applications with fixed output voltage requirements and high noise immunity. It has an operating voltage range from 0.9V to 1.85V and an adjustable system voltage range from 1.20V to 2.05V. The device utilizes two different circuit architectures for the control of voltage, one for the System supply voltage, and the other for the Channel 1 output voltage.

In terms of its application field, the S-80852CNPF-B9DTFU PMIC-Supervisor can be used in a wide range of power applications such as LED lighting, automotive power supply systems, portable computing systems, RF power amplifiers, and mobile phones. Furthermore, its integration of a fast-settle voltage regulator, voltage supervisor, power sequencer, and ESD protection allows it to be integrated into high performance, low time-to-market systems.

The working principle of the S-80852CNPF-B9DTFU PMIC-Supervisor is based on a two-stage power regulation system. It utilizes a regulated switching power supply for the system supply at the first stage and a linear regulator for the output voltage setting at the second stage. There are two different control architectures for the two control stages, allowing for the system supply or output voltage to be adjusted independently. The two stages allow for accurate voltage regulation with a wide range of output voltage settings.

At the first stage, the regulated switching power supply of the S-80852CNPF-B9DTFU PMIC-Supervisor is used to output the system supply voltage. It is based on a synchronous MOSFET switching circuit with a regulated output voltage setting. It is enabled by an on/off control signal and an adjustable output voltage setting. It also has built-in current limiting, over-voltage protection, and thermal shutdown functions.

At the second stage, the linear regulator of the S-80852CNPF-B9DTFU PMIC-Supervisor is used to output the channel 1 output voltage. It is a low power, high performance linear regulator with a wide input voltage range and output voltage settings. It is enabled by an on/off control signal, an adjustable system voltage setting, and a programmable output voltage setting. It also has built-in short-circuit protection, thermal overload protection, and over-voltage protection features.

In conclusion, the S-80852CNPF-B9DTFU PMIC-Supervisor is a low power and high performance PMIC device integrating various monitoring and control functions for applications with fixed output voltage requirements and high noise immunity. It utilizes a two-stage power regulation system, with a regulated switching power supply at the first stage and a linear regulator at the second stage. This allows for accurate voltage regulation with a wide range of output voltage settings, making it ideal for LED lighting, automotive power supply systems, portable computing systems, RF power amplifiers and mobile phones.

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