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UC1871L883B PDF预览

UC1871L883B

更新时间: 2024-11-14 12:01:59
品牌 Logo 应用领域
德州仪器 - TI 驱动器
页数 文件大小 规格书
14页 1014K
描述
Resonant Fluorescent Lamp Driver

UC1871L883B 技术参数

是否无铅: 含铅生命周期:Obsolete
零件包装代码:BCY包装说明:SOP, LCC20,.35SQ
针数:20Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.84模拟集成电路 - 其他类型:FLUORESCENT LIGHT CONTROLLER
控制模式:CURRENT-MODE控制技术:RESONANT CONTROL
最大输入电压:20 V最小输入电压:4.5 V
标称输入电压:5 VJESD-30 代码:O-XBCY-W20
功能数量:1端子数量:20
最高工作温度:125 °C最低工作温度:-55 °C
最大输出电流:0.1 A封装主体材料:UNSPECIFIED
封装代码:SOP封装等效代码:LCC20,.35SQ
封装形状:ROUND封装形式:CYLINDRICAL
认证状态:Not Qualified筛选级别:MIL-STD-883 Class B
子类别:Switching Regulator or Controllers表面贴装:NO
切换器配置:PUSH-PULL最大切换频率:78 kHz
技术:BIPOLAR温度等级:MILITARY
端子形式:WIRE端子节距:1.27 mm
端子位置:BOTTOM

UC1871L883B 数据手册

 浏览型号UC1871L883B的Datasheet PDF文件第2页浏览型号UC1871L883B的Datasheet PDF文件第3页浏览型号UC1871L883B的Datasheet PDF文件第4页浏览型号UC1871L883B的Datasheet PDF文件第5页浏览型号UC1871L883B的Datasheet PDF文件第6页浏览型号UC1871L883B的Datasheet PDF文件第7页 
UC1871  
UC2871  
UC3871  
Resonant Fluorescent Lamp Driver  
FEATURES  
DESCRIPTION  
1µA ICC when Disabled  
The UC1871 Family of IC’s is optimized for highly efficient fluorescent lamp  
control. An additional PWM controller is integrated on the IC for applications re-  
quiring an additional supply, as in LCD displays. When disabled the IC draws  
only 1µA, providing a true disconnect feature, which is optimum for battery  
powered systems. The switching frequency of all outputs are synchronized to  
the resonant frequency of the external passive network, which provides Zero  
Voltage Switching on the Push-Pull drivers.  
PWM Control for LCD Supply  
Zero Voltage Switched (ZVS) on  
Push-Pull Drivers  
Open Lamp Detect Circuitry  
4.5V to 20V Operation  
Soft-Start and open lamp detect circuitry have been incorporated to minimize  
component stress. An open lamp is detected on the completion of a soft-start  
cycle.  
Non-saturating Transformer  
Topology  
The Buck controller is optimized for smooth duty cycle control to 100%, while  
the flyback control ensures a maximum duty cycle of 95%.  
Smooth 100% Duty Cycle on  
Buck PWM and 0% to 95% on  
Flyback PWM  
Other features include a precision 1% reference, under voltage lockout, flyback  
current limit, and accurate minimum and maximum frequency control.  
BLOCK DIAGRAM  
UDG-92061-1  
Note: Pin numbers refer to DIL-18 and SOIC-18 packages only.  
10/94  

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