S-80855CNPF-B9GTFU

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Power management integrated circuits (PMICs) are electronic circuits used to supply and manage the power present in an electronic device. They provide efficient and reliable power supply to a range of peripheral circuitry as well as higher power dissipation components in other integrated circuitry. Supervisors, or voltage supervisors, are used to monitor the activity in a circuit and take corrective action—regulating the power supply in response to changes in the level of activity in the circuit.

The S-80855CNPF-B9GTFU is a supervisor from Microchip Technology and is part of their Supervisory Circuits range of PMICs. This particular unit is available in a small 8-pin SOIC package with an operating temperature range of -40°C to +125°C. It offers integrated over-voltage protection and reset capabilities, as well as a range of other features designed to offer reliable power management and control. In addition, the device is compatible with many of the control interface technologies found in today’s embedded systems, such as I2C and SPI.

The S-80855CNPF-B9GTFU is designed to provide power-on reset and supply-voltage monitoring for powering control logic and other low-power peripherals in embedded systems. The unit offers a voltage monitor (VMON) input for detecting under-voltage conditions, and an adjustable reset (RESET) pin for controlling the state of the circuit being monitored. A reset active (RESET_ACTIVE) pin provides a low-voltage indication that the circuit is in a safe state. An enabling/disable (EN_DIS) pin provides on/off control of the reset function.

The device also features internal voltage reference options, which allow it to be used with digital and analog power-supply systems. The supervisor is designed with an input voltage range of 2.7V to 5.5V, with an open-drain output voltage range of 0.8V to 3V. This makes it an ideal solution for monitoring output voltages in many different applications. It also supports multiple reset and power-on reset delays, allowing users to fine-tune the timings based on their requirements.

The S-80855CNPF-B9GTFU is suitable for use in a variety of applications, including portable battery-powered products, such as smartphones, tablets, and wearables; automotive, industrial, and medical electronics; and a range of energy-harvesting and embedded control applications. The supervisor can also be used in motor and motor-control applications, such as servos, stepper motors, and solenoids.

The S-80855CNPF-B9GTFU’s working principle is based on a combination of programming and monitoring. When the supervisor is activated, it reads the voltage at the input pin, which can be monitored by an analog-to-digital converter (ADC). If the voltage is lower than the predetermined threshold, the supervisor activates the reset pin, which can be monitored by an output port. The supervisor also features an adjustable reset timeout, allowing it to be configured to respond to changes in the voltage level over a certain period of time.

The S-80855CNPF-B9GTFU PMIC supervisor is an ideal solution for regulating and monitoring power supply in many different applications. Its adjustable reset, enable/disable, and voltage reference options allow for greater flexibility in power management and control. It is suitable for use in a variety of applications, including portable battery-powered products, automotive, industrial and medical electronics, energy-harvesting, and motor-control applications.

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