UCC2580DTR-3

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

This article describes the application fields and working principles of UCC2580DTR-3. UCC2580DTR-3 is a DC-DC Switching Controller from Texas Instruments which is categorized under PMIC-Voltage Regulators-DC DC Switching Controllers. By combining low-noise current-mode pulse-width modulation (PWM) control with a senseFET power stage, the UCC2580DTR-3 provides a complete power solution for computing, communications, and consumer systems.

Application Fields

UCC2580DTR-3 is ideally suited for low-power applications. Specifically, it is well-suited for applications such as powering mobile phones, laptops, and set-top boxes. It is also suitable for powering LED displays, printers, portable medical equipment, etc.

Working Principle

The UCC2580DTR-3 is a switched current mode step-down DC-DC controller. The device converts an input voltage of 2.5 V to 12 V to an output voltage of 1.2 V to 5.5 V. It can operate in any voltage range between 2.5 V and 12 V. The device operates with a PWM frequency of 400 kHz and can generate up to 2 A of regulated output current. This current is controlled by an internal current sense amplifier, which is based on a senseFET architecture.

The controller includes an internal PWM controller with an integrated oscillator and adjustable current-sensing comparator. The oscillator frequency can be programmed with an external resistor or can be synchronized with an external clock. The output voltage is monitored and compared with an external reference voltage, and the resulting error signal is used to control the duty cycle of the driver.

The UCC2580DTR-3 includes several features that enhance system efficiency, such as input voltage and output voltage monitoring, an adjustable current-limit setting, and hiccup overcurrent protection. It also includes a host of built-in protection features, including thermal shutdown protection, a fault latch, and a soft-start feature to reduce in-rush current.

In addition to the conventional protections, the UCC2580DTR-3 provides a proprietary protection mode called “PowerSave”. This feature is designed to minimize power consumption when the load is low. It works by automatically reducing the PWM frequency when the load current falls below a certain threshold. This reduces the switching losses, thus improving the overall efficiency.

Overall, the UCC2580DTR-3 provides a complete control and power solution for low-power applications. Its efficient current-mode PWM control, wide adjustable output voltage range, and the wide variety of protection features make it an ideal choice for powering mobile devices, set-top boxes, and other power sensitive applications.

The specific data is subject to PDF, and the above content is for reference