UCC28C41DR Integrated Circuits (ICs)

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The UCC28C41DR is a Quad DC-to-DC Switching Controller in a 4-pin package from Texas Instruments. It is a member of the company\'s UCC28CxxQ family of devices. The UCC28C41DR is designed to provide small, efficient, and reliable power supplies with minimal external components to meet the demanding requirements of today\'s technologies.

The UCC28C41DR is an ideal choice for applications such as mobile phone chargers, DC-to-DC converters, and other power supply designs. It features automatic shutdown, output voltage accuracy of ±3.3%, peak current mode control operation, and adjustable current limit.

The UCC28C41DR operates over an adjustable output voltage range of 3.2 V to 22 V and an input voltage range of 4.5 V to 40 V. It is designed to provide an output current of up to 4 A while a current-limit threshold of 4.3 A is available. The device also offers an adjustable soft-start feature to limit inrush current during startup and a frequency shift-based pulse-by-pulse current limiting feature to minimize component stresses during output overload conditions. The device is certified by UL/CSA, EN60825, and other safety standards.

The UCC28C41DR operates with a switching frequency of 200 kHz to 500 kHz. It features a wide input voltage range, low current consumption, low output noise, and a short start-up time. The device also has over temperature protection, output over voltage protection, and a power on reset (POR) signal. It requires minimal external components to operate, making it suitable for space-sensitive applications. The device also features Thermal Shutdown mode, which allows for the controller to shut down autonomously in the event of an over temperature fault.

The UCC28C41DR uses a space-efficient pin-out with a center pin for maximum flexibility in design. The device is designed to operate in any application requiring current mode control, such as buck, boost, forward and flyback converter applications. The center pin is used to set the output voltage. This allows users to easily adjust the output voltage and maintain stability in their power supplies. The device can operate at up to 500 kHz, making it ideal for efficiency-oriented applications.

In summary, the UCC28C41DR is a highly reliable, feature-rich and efficient buck/boost DC-to-DC switching controller suitable for a range of applications. It offers low current consumption, wide input voltage range, low output noise, and short start-up time. It requires minimal external components to operate and is UL/CSA and EN60825-certified, making it an ideal choice for those seeking reliable, efficient and cost-effective power supply solutions.

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