UC2525ADWG4

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UC2525ADWG4 is a multifunctional Pulse-Width Modulation (PWM) control circuit with both DC-DC switching controller and voltage regulator capabilities. It is part of Texas Instruments’ UC25xx family of universal PWM controllers. This family of devices is designed for a variety of power supplies, including isolated DC-DC converters, switching regulators, AC-to-DC and DC-to-DC power converters. The UC2525ADWG4 is a monolithic 16-pin dual sided Plastic SOIC (Small Outline Integrated Circuit) device and can operate at temperatures of up to 125°C. The UC2525ADWG4 is specifically designed for high performance DC-DC switching applications. It has an internal high-side and low-side MOSFET driver that can support a wide range of switching frequencies up to 500kHz. This device offers adjustable current limited protection, over temperature protection, and output overvoltage protection. Additionally, it has a wide input voltage range from 4.5V to 30V, making it suitable for a wide range of applications.The UC2525ADWG4 is designed for applications where a high degree of design flexibility is needed. It can accommodate multiple types of circuits including PWM with peak current mode control, voltage follower schemes, ramp-compensated single-ended primary inductor converters (SEPICs) and linear regulator designs. With its ability to operate in both synchronous and non-synchronous rectifier modes, it is able to support applications that require both low output ripple and fast transient response. The device also has an internal digital soft-start circuit, which can be used to reduce switching noise at start-up or during frequency transitions.The UC2525ADWG4 has two control functions: voltage mode and current mode. In voltage mode, the control signal is a voltage that is compared against an internal reference voltage to adjust the duty cycle. The current mode control uses an internal current sense amplifier that compares the sensed current to a reference voltage to adjust the duty cycle. Additionally, the UC2525ADWG4 has an output voltage adjustment pin that allows the output voltage to be fine-tuned. The output voltage can be adjusted up to 10% of its nominal setting. The UC2525ADWG4 is suitable for a wide range of applications, including laptop computers, portable medical equipment, cellular phones, battery charging systems and car audio system power supplies. It is highly efficient and has a wide operating temperature range, making it an ideal choice for demanding power requirements.In conclusion, the UC2525ADWG4 is a versatile and reliable DC-DC switching controller with both voltage regulator and PWM capabilities. It has an adjustable current limited protection, over temperature protection, and output overvoltage protection. Additionally, it has an adjustable output voltage, adjustable soft-start, and adjustable frequency scaling. These features make the UC2525ADWG4 suitable for a wide range of applications in the automotive, industrial, and consumer markets.

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