UCC3580D-3

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The UCC3580D-3 is a synchronous MOSFET driver and PWM controller with a maximum switched current of 3A. It features an adjustable current limit, pulse-by-pulse current limit, adjustable peak current limiting, and loop compensation. It is suitable for use in high-power DC/DC converters.

The UCC3580D-3 is designed for usage in a wide range of applications, including power supply for computers and consumer electronics, LED lighting, and other fast cycling or high frequency applications. It is also a suitable choice for wide input range buck or boost power supplies, as well as synchronous rectification bridges. This versatile DC/DC controller can be used in many different scenarios.

The UCC3580D-3 is a highly integrated device which combines the main power switch, gate drive, and current sensing circuitry in one compact package. It integrates a high-speed current-sense comparator, precise voltage-derived current limiting and an adjustable frequency PWM controller. The device includes both high and low side gate drivers and supports external loop compensation, allowing current-mode control. This enables very stable and precise operation of the DC/DC converter.

The primary function of the UCC3580D-3 is to control and regulate the output voltage of a DC/DC converter. It does so by modulating the duty cycle of the converter’s main switch according to the control signals sent from the UCC3580D-3. The main switch is driven by the high side and low side gate drivers integrated within the device.

The UCC3580D-3 uses an adjustable frequency PWM control scheme to regulate the output voltage. The frequency of the PWM signal is adjustable, allowing for a wide operating range of the output voltage. The PWM signal is compared to a voltage generated by an internal error amplifier, which is proportional to the difference between the desired and actual output voltage. Accordingly, the duty cycle of the PWM signal is adjusted to achieve the desired output voltage.

Additional features include current limit, peak current limit, and loop compensation. The current limit feature allows the user to limit the output current to a safe level in order to avoid damage to the device or the converter. The peak current limit feature prevents instantaneous current spikes, while the loop compensation feature allows the user to adjust the response of the converter’s control loop in order to optimize performance.

The UCC3580D-3 is a versatile DC/DC switching controller which can be employed in a wide range of usage scenarios. It provides efficient and precise control and regulation of the output voltage of DC/DC converters. With its adjustable current limit, peak current limit and loop compensation features, the UCC3580D-3 ensures reliable and efficient operation.

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