UC2874DWTR-2G4

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The UC2874DWTR-2G4 is a DC DC switching controller manufactured by TI. It belongs to the PMIC – Voltage Regulators – DC DC Switching Controllers family and is specifically designed for use in power supply and lighting applications. The product is designed to support a range of different operating frequencies, from frequency modulation (FM) to pulse-width modulation (PW) and is compliant with the digital pulse-width modulation (DPWM) standard. The UC2874DWTR-2G4 provides a comprehensive set of features that facilitate better power supply operation, including active burst mode (ABM), advanced loop compensation (ALC), and power-saver mode (PWRM).

The UC2874DWTR-2G4 is a high-performance device that includes several innovative features. Its high current capability allows it to accept a broad range of input voltage and support multiple loads. It supports programmable current limit, low ripple, and advanced over-current protections. The device also features an adjustable bias control, phase compensation, and output blanking. It supports multiple output configurations, from buck to boost, allowing it to accommodate a wide array of power supply requirements. Its 3-A source and 3-A sink output drive capability enables it to support higher-current applications, making it a great choice for applications such as LED lighting.

The UC2874DWTR-2G4 operates on a feedback principle. It uses a feedback loop to adjust the pulse-width modulation (PWM) switching frequency and duty cycle to maintain a constant output voltage. The device uses a voltage reference, controlled by the feedback loop, to determine the duty ratio of the PWM pulses based on the output voltage. This feedback loop helps maintain a stable output-voltage over a range of conditions, including changes in load current, input voltage, and temperature. The device also supports skip mode operation, which reduces the amount of switching loss of the system during light load operation.

The UC2874DWTR-2G4 features several integrated protection circuits designed to protect against transient events and other hazardous situations. These protection circuits include input under-voltage protection, output over-voltage protection, loading over-current protection, over-heating protection, and fault latches. The device features a fast latch-off circuit for open loop fault protection and under-voltage lockout for output enable protection. This helps protect the device from overloads and improves the reliability of the system.

With its vast array of features, the UC2874DWTR-2G4 makes it easy to build efficient and reliable power conversion systems. It is an ideal solution for applications such as LED lighting, industrial and automotive power conversion, and power supplies. The device is supported by a range of development tools and documentation, providing customers flexibility and ease of use. This helps make it the perfect choice for any design requiring reliable and efficient power conversion.

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