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UCC28250,pdf(Advanced PWM Cont

消耗积分:5 | 格式:rar | 大小:753 | 2010-09-29

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The UCC28250 PWM controller is designed for high power density applications that may have stringent pre-biased startup requirements. The UCC28250’s integrated synchronous rectifier control outputs target high efficiency and high performance topologies such as half-bridge, full-bridge, interleaved forward, and push-pull. The UCC27200 half bridge drivers and UCC2732X MOSFET drivers used in conjunction with the UCC28250 provide a complete power converter solution.

Externally programmable soft-start, used in conjunction with an internal pre-biased startup circuit, allows the controller to gradually reach a steady-state operating point under all output conditions. The UCC28250 can be configured for primary or secondary-side control and either voltage or current mode control can be implemented.

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