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UC3842AN PDF预览

UC3842AN

更新时间: 2024-11-25 22:41:51
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 开关光电二极管控制器
页数 文件大小 规格书
8页 45K
描述
SMPS Controller

UC3842AN 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:DIP包装说明:DIP, DIP8,.3
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.82模拟集成电路 - 其他类型:SWITCHING CONTROLLER
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:25 V最小输入电压:12 V
标称输入电压:15 VJESD-30 代码:R-PDIP-T8
JESD-609代码:e3长度:9.2 mm
功能数量:1端子数量:8
最高工作温度:70 °C最低工作温度:
最大输出电流:1 A封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP8,.3
封装形状:RECTANGULAR封装形式:IN-LINE
峰值回流温度(摄氏度):NOT APPLICABLE认证状态:Not Qualified
座面最大高度:5.08 mm子类别:Switching Regulator or Controllers
表面贴装:NO切换器配置:SINGLE
最大切换频率:500 kHz技术:BIPOLAR
温度等级:COMMERCIAL端子面层:Matte Tin (Sn)
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT APPLICABLE
宽度:7.62 mm

UC3842AN 数据手册

 浏览型号UC3842AN的Datasheet PDF文件第2页浏览型号UC3842AN的Datasheet PDF文件第3页浏览型号UC3842AN的Datasheet PDF文件第4页浏览型号UC3842AN的Datasheet PDF文件第5页浏览型号UC3842AN的Datasheet PDF文件第6页浏览型号UC3842AN的Datasheet PDF文件第7页 
www.fairchildsemi.com  
UC3842A/UC3843A  
SMPS Controller  
Features  
Description  
• Low Start Current 0.2mA (typ)  
• Operating Range Up To 500KHz  
• Cycle by Cycle Current Limiting  
• Under Voltage Lock Out With Hysteresis  
• Short Shutdown Delay Time: typ.100ns  
• High Current Totem-pole Output  
• Output Swing Limiting: 22V  
The UC3842A/UC3843A are fixed PWM controller for Off-  
Line and DC to DC converter applications. The internal cir-  
cuits include UVLO, low start up current circuit, tempera-  
ture compensated reference, high gain error amplifier,  
current sensing comparator, and high current totem-pole out-  
put for driving a POWER MOSFET. Also UC3842A/  
UC3843A provide low start up current below 0.3mA and  
short shutdown delay time typ. 100ns. The UC3842A has  
UVLO threshold of 16V(on) and 10V(off). The UC3843A is  
8.4V(on) and 7.6V(off). The UC3842A and UC3843A can  
operate within 100% duty cycle.  
8-DIP  
1
8-SOP  
1
Internal Block Diagram  
7
5
VCC  
29V  
5V  
VREF  
SET/  
RESET  
VREF  
8
GND  
UVLO  
Internal  
Bias  
Good LOGIC  
PWR  
VC  
7
1/2VREF  
C.S  
Comp.  
PWM  
Error Amp  
+
-
LATCH  
1/3  
1V  
VFB  
2
R
S
6
5
22V  
OUTPUT  
1
3
COMP  
C.S  
PWR  
GND  
RT/CT  
OSCILLATOR  
4
Rev. 5.0  
©2000 Fairchild Semiconductor International  

UC3842AN 替代型号

型号 品牌 替代类型 描述 数据表
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