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LYTSwitch-5

适用于隔离和非隔离拓扑结构,结合了功率因素校正(PFC)及恒流输出控制功能的单级LED驱动器IC

应用
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Product Parts Table
产品
数据手册
輸出功率 (最大) - 通用
击穿电压
保护功能
功率因数
拓扑结构
输入电压 (最小)
输入电压 (最大)
输出配置
IC封装
安装类型
产品类型
运作温度 (最大)
运作温度 (最小)
内部开关
自动重启和过压反应
过热反应
调光接口
控制功能
Data Sheet 查看PDF
Power - Output (Max, Univ) 16 W
Breakdown Voltage 650 V
Protection Features Input Overvoltage, Output Open Loop, Output Overvoltage, Output Undervoltage, Thermal Foldback
Power Factor High
Topology Buck-Boost, Flyback, Boost PFC
Voltage - Input (Min) 90 V
Voltage - Input (Max) 308 V
Output Profile CC
IC Package SO-16B
Mounting Type Surface Mount
Product Type IC
Temperature - Operating (Max) 150 °C
Temperature - Operating (Min) -40 °C
Internal Switch Yes
Auto-Restart & Overvoltage Response Latch Off
Over-Temperature Response Hysteretic
Dimming Interface Yes, No, PWM
Control Features Frequency Jittering, Auto-Restart/Latching Fault Response
Data Sheet 查看PDF
Power - Output (Max, Univ) 25 W
Breakdown Voltage 650 V
Protection Features Input Overvoltage, Output Open Loop, Output Overvoltage, Output Undervoltage, Thermal Foldback
Power Factor High
Topology Buck-Boost, Flyback, Boost PFC
Voltage - Input (Min) 90 V
Voltage - Input (Max) 308 V
Output Profile CC
IC Package SO-16B
Mounting Type Surface Mount
Product Type IC
Temperature - Operating (Max) 150 °C
Temperature - Operating (Min) -40 °C
Internal Switch Yes
Auto-Restart & Overvoltage Response Latch Off
Over-Temperature Response Hysteretic
Dimming Interface Yes, No, PWM
Control Features Frequency Jittering, Auto-Restart/Latching Fault Response
Data Sheet 查看PDF
Power - Output (Max, Univ) 9 W
Breakdown Voltage 725 V
Protection Features Input Overvoltage, Output Open Loop, Output Overvoltage, Output Undervoltage, Thermal Foldback
Power Factor High
Topology Buck-Boost, Flyback, Boost PFC
Voltage - Input (Min) 90 V
Voltage - Input (Max) 308 V
Output Profile CC
IC Package SO-16B
Mounting Type Surface Mount
Product Type IC
Temperature - Operating (Max) 150 °C
Temperature - Operating (Min) -40 °C
Internal Switch Yes
Auto-Restart & Overvoltage Response Latch Off
Over-Temperature Response Hysteretic
Dimming Interface Yes, No, PWM
Control Features Frequency Jittering, Auto-Restart/Latching Fault Response
Data Sheet 查看PDF
Power - Output (Max, Univ) 16 W
Breakdown Voltage 725 V
Protection Features Input Overvoltage, Output Open Loop, Output Overvoltage, Output Undervoltage, Thermal Foldback
Power Factor High
Topology Buck-Boost, Flyback, Boost PFC
Voltage - Input (Min) 90 V
Voltage - Input (Max) 308 V
Output Profile CC
IC Package SO-16B
Mounting Type Surface Mount
Product Type IC
Temperature - Operating (Max) 150 °C
Temperature - Operating (Min) -40 °C
Internal Switch Yes
Auto-Restart & Overvoltage Response Latch Off
Over-Temperature Response Hysteretic
Dimming Interface Yes, No, PWM
Control Features Frequency Jittering, Auto-Restart/Latching Fault Response
Data Sheet 查看PDF
Power - Output (Max, Univ) 25 W
Breakdown Voltage 725 V
Protection Features Input Overvoltage, Output Open Loop, Output Overvoltage, Output Undervoltage, Thermal Foldback
Power Factor High
Topology Buck-Boost, Flyback, Boost PFC
Voltage - Input (Min) 90 V
Voltage - Input (Max) 308 V
Output Profile CC
IC Package SO-16B
Mounting Type Surface Mount
Product Type IC
Temperature - Operating (Max) 150 °C
Temperature - Operating (Min) -40 °C
Internal Switch Yes
Auto-Restart & Overvoltage Response Latch Off
Over-Temperature Response Hysteretic
Dimming Interface Yes, No, PWM
Control Features Frequency Jittering, Auto-Restart/Latching Fault Response

简介

LYTSwitch?-5®产品系列非常适合单级功率因数校正恒流LED应用,比如灯泡、灯管和镇流器的应用。

每个器件都集成了一个高压功率MOSFET及一个用于控制非连续导通模式工作、并可以对频率和导通时间实现控制的控制器。该控制器还提供快速(逐周期)限流、输入和输出过压保护以及高级的热管理电路。

采用开关管位于低端的开关拓扑结构,利用电气上安静的源极引脚进行散热,再加上频率调制技术的应用,使得整个系统可以做到极低的EMI。这样可以减小输入滤波元件的尺寸,从而极大地降低音频噪声。

表1汇总了具有3个不同输出功率等级和2个MOSFET耐压选项的器件,可根据成本优化的需要选择相应型号,同时EcoSmart™开关技术可确保每个器件型号在各负载条件下都能实现最高的效率。

产品特色

单级PFC + 精确恒流输出相结合

  • 优于±3%的恒流精度
  • 功率因数>0.9
  • 低THD,在典型输入和输出条件下<10%
  • 在优化型设计中效率可达90%以上
  • 高开关频率和DCM(非连续导通模式)允许使用更小的磁性元件

设计灵活性

  • 支持降压、降压-升压、抽头降压、升压和隔离或非隔离反激式拓扑结构。
  • 2个MOSFET耐压选项及3个输出功率等级,对具体应用可选出最佳适用器件

最高可靠性

  • 无大容量电解电容或光电隔离器件,可延长使用寿命
  • 全面保护功能
    • 输入及输出过压保护
    • 开环保护
  • 高级热控制
    • 过温时输出功率降额的特性允许在异常高的环境温度下仍能提供照明输出
    • 迟滞的过热关断特性在故障条件下提供保护