UCC2580N-4

Voltage - Supply (Vcc/Vdd):	8.5 V ~ 15 V
Base Part Number:	UCC2580-4
Supplier Device Package:	16-PDIP
Package / Case:	16-DIP (0.300", 7.62mm)
Operating Temperature:	-55°C ~ 150°C (TJ)
Control Features:	Soft Start
Fault Protection:	--
Frequency - Switching:	--
Duty Cycle:	66%
Series:	--
Voltage - Start Up:	15V
Topology:	Flyback, Forward
Voltage - Breakdown:	--
Internal Switch(s):	No
Output Isolation:	Isolated
Part Status:	Obsolete
Packaging:	Tube

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UCC2580N-4 Application Field and Working PrincipleUCC2580N-4 is an integrated pulse-width modulator (PWM) chip developed by Texas Instruments. It is a high performance AC/DC switching regulator controller with a dedicated high current output stage. The UCC2580N-4 is form-factor compatible with the UCC2580N-4 series and provides improved efficiency, flexibility, and increased system margins.The UCC2580N-4 is designed for various offline AC/DC switcher applications, such as PC power supplies, 3rd-party adapters, motor control, and lighting, with an operating frequency range of 400kHz to 800kHz. It integrates a full range of features, such as an over-current protection circuit, frequency and phase feedback loop, and power management functions. The PWM controller integrates a linear voltage regulation capability and provides an enhanced system margin, making it ideal for a variety of applications.The UCC2580N-4 is specifically optimized for high-performance switching regulator applications. It features an internal high-speed, programmable current-sense amplifier for a wide range of output current. The current-sense amplifier allows for fast circuit response time and allows for fast setting of over-current limits. The UCC2580N-4 also features a voltage feedback loop, which can be used for voltage-controlled operation and for optimized noise reduction.The UCC2580N-4 provides an integrated integrated PWM control architecture with a high-current output stage, allowing for efficient current control and switching. It features a wide operational voltage range (6V to 50V) and is capable of providing up to 20A of output current.The output stage of the UCC2580N-4 is based on a two-phase current-mode architecture and operates at high frequencies (up to 800kHz). This makes it suitable for applications that require a higher switching frequency than conventional PWM controllers. Additionally, the IC includes several over-current protection features, such as a monitored peak current limit, thermal protection, and over-voltage protection, providing a robust system-level solution.The UCC2580N-4 also includes several power management functions, such as automatic stand-by/suspend and sleep modes, as well as an adjustable low-power-discharge mode. The IC also features an internal pulse-by-pulse current monitor circuit, which is used for diagnostics and to control the current for improved efficiency and system margins.The UCC2580N-4 is an ideal choice for a wide range of AC/DC converters and offline switcher applications. Its high-performance output stage and integrated features make it ideal for applications that require both high efficiency and reliability.

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