【产品】内置16ms软启动电路的离线式开关电源芯片DK124，最大输出功率达到24W

时间： 2020-12-16 来源：东科半导体

技术问答

东科半导体推出的DK124是一款离线式开关电源芯片，最大输出功率达到24W，采用DIP-8封装。不同于PWM控制器和外部分立功率MOS组合的解决方案，DK124内部集成了PWM控制器、700V功率管和初级峰值电流检测电路，并采用了可以省略辅助供电绕组的专利自供电技术，因此极大地简化了外围应用电路，减少了原件数量、电路尺寸和重量，特别适用于成本敏感的反激式开关电源。

封装和引脚图

DK124交直流转换芯片的主要特点

· 全电压输入85V~265V

· 内置700V高压功率管

· 内部集成了高压启动电路，无需外部启动电阻

· 内置16ms软启动电路

· 内置高低压功率补偿电路，使高低压最大输出功率保持一致

· 专利的自供电技术，无需外部辅助绕组供电

· 内置频率调制电路，简化了外围EMI设计成本

· 完整的过压、过温、过流、过载、输出开路/短路保护

DK124交直流转换芯片的典型应用

· DVD、VCR、STB电源

· 适配器，充电器电源

· LED驱动等

典型功率

极限参数

电路结构方框图

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【选型】东科半导体（DK）AC-DC交直流隔离式副边反馈开关/隔离式原边反馈开关/非隔离开关/同步整流开关芯片和充电器芯片选型指南

目录- 企业简介 AC-DC和同步整流产品线机顶盒/家电/适配器/充电器/照明应用产品示意图 AC-DC/同步整流产品特性参数表交直流隔离式副边反馈开关电源转换芯片交直流隔离式原边反馈开关电源转换芯片交直流非隔离开关电源转换芯片交直流同步整流开关电源控制芯片充电器芯片

型号- DK5V60R20C,DK5V45R15ST1,DK5V60R20D,45R25,DK5V45R25C,60R20,DK5V85R15S,DK5V45R25D,60R25,DK212,DK2X010,DKX036,DK5V120R10ST1,120R15,DK218,DK5V45RXXP,DKS024,DK5V45RXXM,120R10,DK5V45RXXS,DK5V100R10ST1,DK5V100R25M,45R20,DK5V85R20D,DK5V85R20C,100R05,DK5V100R25S,DK5V85R10ST1,45R15,DK5V60R15D,45R10,DK5V150R20S,100R20,DK5V45R10ST1,DK5V60R15S,DK5V100R15C,DK5V100R15D,DK5V60R30S,DK5V45R25P,DK112B,DK5V85R15D,DK5V45R25S,DKS036,DK112A,DK5V150R25ST1,DK5V85R15C,100R10,DK5V60R15C,100R15,120R05,45R05,DK5V150R15S,DK5V100RXXC,45R03,DK5V100RXXD,DK5V150R15ST1,DK5V100R25ST1,DK5V120RXXST1,DK2300,DK5V150RXXST1,DK5V85R10C,DKX012,DK5V60R25S,DK5V45R10M,DK1203B,DK5V45R10S,DK1203A,DK5V85R10D,DK5V100R25D,DK5V100R05ST1,DK5V60R25C,DK5V60R25D,DK5V45RXXC,DK5V45RXXD,DK265,DK5V85R20S,DK5V100R25C,DK5V100RXXS,DKX024,DKS012,150R15,DK5V60RXXS,DK5V45R05ST1,150R10,DK5V100RXXM,DK5V60RXXD,DK5V150R25S,DK5V100R10C,DK5V100R10D,DK5V60RXXC,DK136,DK5V45R05M,DK412,DK5V85RXXD,DKS065,DK5V85RXXC,85R05,DK935,DK938,85R03,150R25,DK5V45R20P,DK5V45R20S,DK236M,DK5V45RXXST1,DK5V85RXXST1,DK212M,DK5V120RXXM,DK224M,DK5V85R10S,DK5V150RXXS,DK5V120R20ST1,DK5V45R20ST1,DK5V100R20ST1,DK1203,DK5V45R10C,DK125,DK124,DK5V45R10D,DK245,DK5V60R10S,DK1208,DK5V100R10S,DK924,DK5V150R25M,DK5V100R10M,DK5V60R10C,DK5V60R10D,DK5V100R20C,DK5V100R20D,DK5V120R25ST1,DK5V85R25S,DK5V45R15D,DK5V45R15C,DK2100,DK112,60R03,DK2500,60R05,DKX065,DK5V100RXXST1,DK236,DK910,DK912,DK913,85R25,DK5V100R15M,DK918,DK218M,100R25,85R20,DK5V100R15S,DK5V150RXXM,DK5V85RXXS,DK5V150R10S,60R10,DK224,DK5V45R20D,60R15,DK5V45R20C,DK501,DK106,DK502,DK5V85R25D,DK5V60R20S,DK5V45R15M,120R25,DK903,DK5V100R20S,120R20,DK905,DK5V85R25C,DK5V100R15ST1,DK5V45R15S,85R15,DK5V85R15ST1,DK906,85R10,DK908,DK5V100R20M

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