UCC38C44DG4

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The UCC38C44DG4, an efficient and advanced device designed and manufactured by Texas Instruments, is a PMIC - AC DC Converter, Offline Switcher that integrates high-voltage controllers with a power MOSFET, allowing users to capitalize on the cost savings of a couple of different integrated components. The device also features an integrated switch-mode power supply (SMPS) with a current-mode control architecture, enabling users to exploit the time-saving and space-saving factors such as reducing the overall system design, programming and debugging costs. This makes the device an excellent choice for modern applications where high integration, size and design flexibility are essential.

The UCC38C44DG4 is a highly integrated, energy-efficient power converter for AC-DC, DC-DC and DC-AC offline switching applications. It combines an integrated high-voltage MOSFET switch and internal voltage feedback circuitry for improved transient response. This ensures an accurate output voltage with excellent line and load regulation, regardless of the source voltage variations. As a result, the power supply operates at efficiencies greater than 90 percent with no external components required. The UCC38C44DG4 also features an integrated magnetic amplifier that eliminates external field effect transistors (FETs). This further results in further reductions in overall size, weight, cost and system complexity.

The UCC38C44DG4 features a current-mode architecture that ensures a robust and reliable performance. The device, which employs a constant off-time current mode controller, can also provide a programmable frequency ranging between 20 and 250 kHz, thus enabling the user to achieve optimal performance and flexibility. The device also features an Internal Adaptive Off-Time Control that allows the system to operate at the highest performance levels. This means that the user can adjust the system parameters to optimise performance in the presence of severe transient load requirements.

The UCC38C44DG4 is capable of providing up to 85 Watts of power at 230 Volts and 50 Hertz, with a maximum operating frequency of 250 kHz and a typical efficiency of 91 percent. The low switching frequency and high efficiency provide a high power density, reducing the size and weight of the power supply. Additionally, the device has a number of protection features, such as short-circuit, over-temperature and over-voltage protections, which provide critical protection to the system and ensure reliable operation. Plus, the device is certified to UL/CSA/IEC 60950 to international safety standards.

The device has a wide range of applications, such as lighting, computer peripherals, battery charger, LED drivers and AC-DC offline power supplies. And because of its compact form factor, the device can be employed in a variety of end-products where space is at a premium. The advanced features and comprehensive protection of the UCC38C44DG4 make it an ideal choice for next-generation systems that require high efficiency, low power consumption, high power density and robust protection.

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