PWM(脉冲宽度调制)控制器,Fairchild Semiconductor### 离线和隔离直流-直流控制器,Fairchild Semiconductor回扫控制器、线路电平控制 LLC 控制器和初级侧调节控制器显著节能,以满足开关模式电源 SMPS 设计的需要。 所有控制器随附集成软启动和过压、开口反馈、过载、输出短路、过电流、电压中断和欠压闭锁功能。
Description
The is a fixed frequency current mode PWM controller. It is specially designed for off-line and DC to DC converter applications with minimal external components. These integrated circuits feature a trimmed oscillator for precise duty cycle control, a temperature compensated
reference, an ON/OFF control, a high gain error amplifier, a current sensing comparator, and a high current totem-pole output. The FAN7554 has various protection functions such as an over load protection, an over current protection, and the over voltage protection, which include built-in auto restart circuit. The FAN7554 is available in the 8-DIP package as well as the 8-SOP package.
Features
• Current Mode Control
• Pulse by Pulse Current Limiting
• Low External Components
• Under Voltage LockoutUVLO: 9V/15V
• Stand-by Current: Typ. 100uA
• Power Saving Mode Current: Typ. 200uA
• Operating Current: Typ. 7mA
• Soft Start
• On/Off Control
• Over Load ProtectionOLP
• Over Voltage ProtectionOVP
• Over Current ProtectionOCP
• Over Current LimitOCL
• Operating Frequency up to 500kHz
• 1A Totem-Pole Output Current
电源电压DC 30.0V max
输出接口数 1
输出电压 30 V
输出电流 1 A
耗散功率 850 mW
静态电流 100 µA
开关频率 500 kHz
占空比 98 %
最大占空比 0.95
工作温度Max 85 ℃
工作温度Min -25 ℃
耗散功率Max 850 mW
电源电压 9V ~ 30V
安装方式 Through Hole
引脚数 8
封装 DIP-8
长度 9.2 mm
宽度 6.4 mm
高度 3.4 mm
封装 DIP-8
工作温度 -25℃ ~ 85℃
产品生命周期 Active
包装方式 Tube
RoHS标准 RoHS Compliant
含铅标准 Lead Free
ECCN代码 EAR99
香港进出口证 NLR