SW2658A datasheet(1/9 Pages) SEMIPOWER

Part #	SW2658A

Description	Green energy-saving current mode PWM switching power supply controller

PDF	9 Pages

Scroll/Zoom	100%

Manufacturer	SEMIPOWER [Xian Semipower Electronic Technology Co., Ltd.]

Direct Link	http://www.samwinsemi.com

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SW2658A

SAMWIN 绿色电源的最佳选择 HTTP://WWW.SEMIPOWER.COM.CN

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SW2658A-CN-02

绿色节能电流模式 PWM 开关电源控制器

概述

SW2658A集成了专门的电流模式PWM控制器和高压功率MOSFET,适用于24W以内的高性能、低待机功耗、

低成本的离线式反激开关电源中。

电路具有软启动的功能。为了保证芯片正常工作,特针对各种故障设计了一系列完善的具有可恢复功

能的保护措施,包括VDD欠压锁定保护(UVLO)、过压保护(OVP)及箝位、逐周期电流限制(OCP)、过载保护(OLP)

和图腾柱输出驱动高箝位等。芯片内置的频率抖动和图腾柱栅极软驱动技术可容易地获得良好的EMI性能.

特点



内置软启动:4ms



优化的H iccup Mode设计,以提高效率和降低待机功耗

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正常工作时无音频噪声设计

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固定工作频率:50KHz

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内置斜坡补偿电路

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低的启动和工作电流

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内置前沿消隐电路

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无输出功耗小于0.15W

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欠压锁定保护,过载保护(OLP)、过压保护



保护解除后自动恢复功能

应用

引脚图

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适配器

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数码相机、摄像机适配器

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VCR,SVR,DVD&DVCD播放器电源

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机顶盒电源

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开放式开关电源

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个人电脑、服务器辅助电源

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SW2658A Datasheet(PDF) 1 Page - Xian Semipower Electronic Technology Co., Ltd.

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