S-80125BNMC-JGKT2U

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Power management ICs (PMICs) are integrated circuits that provide power to other circuits within a functional system. It is mainly used to control the voltage and current supply, and to protect the system from current or voltage overloads. PMICs can be divided into two types: Supervisors and Voltage Regulators. S-80125BNMC-JGKT2U is a power supervisor IC.

The S-80125BNMC-JGKT2U is a low-power supervisor IC, mainly used in power supplies of microcontrollers and other ICs. It is a high-accuracy, two-channel, reset IC specifically designed for use in systems powered by Lithium-ion battery cells, DC/DC converters, and other power sources. It is designed to monitor the system power supply and provide reset or active-high signals for the microcontroller or system diagnostics.

The pinout of the S-80125BNMC-JGKT2U includes an active-low reset output, a test output, three input pins, and two 2V reference pins. The active-low output is used to reset the microcontroller or system when an under voltage or over voltage condition is detected, which is programmable through the on-chip PU/PD configuration pins. The test output is an active-low open-drain or open-collector output, which is used to indicate faults when the voltage of the power source is below the preset threshold value. The input pins are used to monitor the supply and GND voltages.

The operation of the device is based on a two-stage voltage detector, which is integrated into the S-80125BNMC-JGKT2U. This voltage detector consists of an undervoltage (UV) detector and an overvoltage (OV) detector. The UV detector is used to detect a low input voltage condition (under voltage or loss of power) and the OV detector is used to detect a high input voltage condition (over voltage). The upper and lower thresholds of the voltage detector are determined by external components. The output of the voltage detector is sent to the output pins, which can be connected to the microcontroller or system devices to reset or diagnose the system.

The S-80125BNMC-JGKT2U also includes a power-on reset circuit, which is used to reset the system upon power-up and maintains a reset condition until the voltage of the power source has reached the preset threshold values. The device also includes an enable input pin, which provides a means to enable or disable the reset circuit. The enable input pin can be connected to the system clock circuit, so that the reset circuit is enabled only when the clock circuit is activated.

The S-80125BNMC-JGKT2U is an integrated low-power supervisor IC designed for system power management applications powered by Lithium-ion battery cells, DC/DC converters, and other power sources. It provides active-low reset and test output signals, as well as an enable input to control the power-on reset circuit. The device features a two-stage voltage detector which monitors the supply voltage and generates reset or active-high signals when a fault condition is detected. The device is widely used in electronics systems and is ideal for single-cell battery powered systems.

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