UCC3580N-1G4

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The UCC3580N-1G4 is a low-cost, high-performance, single-pole double-throw (SPDT) DC-DC switching controller. The controller is used to control power conversion by controlling the switching and regulation of an external power supply evaluation board, such as a buck converter.

Application Field

The UCC3580N-1G4 DC-DC switching controller is suitable for applications where a low cost, efficient power supply evaluation board is desired. It is in particular ideal for automotive electronics, portable electronic devices, battery applications, power converters and power management applications. For example, it can be used to provide a regulated output voltages for LED lights, LEDs for LCD displays, portable devices and other applications. Other potential applications include in CPUs, digital cameras, LCD displays and embedded computing devices.

Working Principle

The UCC3580N-1G4 DC-DC switching controller is designed for users to evaluate the performance of power converters with a single-pole double-throw (SPDT) topology. An internal oscillator is utilized to generate the switching frequency. The switching frequency can be adjusted by changing the external inductor and capacitor value. The main function of the UCC3580N-1G4 is to control the switching of the external power supply evaluation board in order to provide a regulated output voltage.

The controller is equipped with a control loop which allows the controller to control the output voltage. The output voltage is monitored by the differential amplifier which compares the feedback voltage with the reference voltage. In the case of an overvoltage, the controller will reduce the duty cycle of the switch. The output voltage regulation is further enhanced by an under-voltage protection and soft-start features.

The controller can be configured as either a fixed-frequency or a spread-spectrum converter. The spread spectrum function is used to reduce the switching noise, reducing the conducted EMI interference. This feature is idealfor applications where low EMI noise is crucial, such as automotive electronics.

The UCC3580N-1G4 is also equipped with many protection features which ensure a safe operation. It includes a temperature protection, input reverse polarity protection and an over-current protection. These features greatly reduce the chance of damages in case of fault conditions.

The UCC3580N-1G4 is a cost efficient, high performance single-pole double-throw (SPDT) DC-DC switching controller. It provides an efficient way to evaluate the performance of power converters by accurately controlling the switching frequency and regulating an external power supply evaluation board. Its powerful protection features, adjustable switching frequency, under-voltage and soft-start features make it an ideal choice for automotive electronics and other power management applications.

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