UCD90120ARGCT Integrated Circuits (ICs)

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PMIC - Supervisors: UCD90120ARGCT Application Field and Working Principle

The UCD90120ARGCT is a single-chip, non-volatile instant-on power monitor, supervisor, and control device for various electronic components. It provides supervision, control and communications for many different electronics applications, offering a large range of protection and power-management functions, such as Over Current, Under Voltage, and Over Temperature protection, as well as an integrated clock. This chip integrates all of these functions into one convenient package, allowing for reduced component count and improved performance.

Application Fields of UCD90120ARGCT

The UCD90120ARGCT can be used in multiple applications, due to its wide range of features. It can be used in industrial, automotive and medical systems, in application such as LED lighting systems, USB charger interfaces, power system supervisors, power management units, voltage reference units, etc. The chip offers both the adaptability to be used in various applications, and the safety features necessary for system protection.

Working Principle of UCD90120ARGCT

The UCD90120ARGCT operates in a variety of modes and provides programming flexibility. There are two main modes – burst mode and pulse mode. In burst mode, the UCD90120ARGCT will switch on when an overvoltage, undervoltage, or over-temperature condition is detected. In pulse mode, the UCD90120ARGCT will issue a series of low pulse-width pulses in response to the same conditions. The pulse widths are controllable through the programming interface.

The UCD90120ARGCT also provides a number of other features, such as a programmable watchdog timer and automatic reset functions. The watchdog timer monitors power conditions to ensure they are within the programmed parameters. The automatic reset functions reset the device following conditions including power failures or when temperature falls or rises too far outside of the set parameters.

In terms of communications, the UCD90120ARGCT provides interface to SMBus and I2C buses. This allows the device to communicate with a range of other components and to communicate with a microcontroller or host processor. It also provides an on-chip JTAG interface, used to program the device and to debug embedded software.

Conclusion

The UCD90120ARGCT is a powerful and versatile supervisor and power monitor device, designed for industrial, automotive and medical applications. It offers a range of protections and power-management functions, along with on-chip programmability for customised solutions. Its wide range of communication capabilities, in combination with its robust safety features, makes it suitable for use in complex systems where reliable power management and protection is crucial.

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