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UC2871Q PDF预览

UC2871Q

更新时间: 2024-11-21 19:10:35
品牌 Logo 应用领域
德州仪器 - TI 开关
页数 文件大小 规格书
14页 1009K
描述
FLUORESCENT LIGHT CONTROLLER, 78kHz SWITCHING FREQ-MAX, PQCC20, GREEN, PLASTIC, LCC-20

UC2871Q 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:QLCC
包装说明:QCCJ, LDCC20,.4SQ针数:20
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.65
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 V
JESD-30 代码:S-PQCC-J20长度:8.965 mm
功能数量:1端子数量:20
最高工作温度:85 °C最低工作温度:-25 °C
最大输出电流:0.1 A封装主体材料:PLASTIC/EPOXY
封装代码:QCCJ封装等效代码:LDCC20,.4SQ
封装形状:SQUARE封装形式:CHIP CARRIER
峰值回流温度(摄氏度):NOT SPECIFIED认证状态:Not Qualified
座面最大高度:4.57 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:PUSH-PULL
最大切换频率:78 kHz技术:BIPOLAR
温度等级:OTHER端子形式:J BEND
端子节距:1.27 mm端子位置:QUAD
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:8.965 mm
Base Number Matches:1

UC2871Q 数据手册

 浏览型号UC2871Q的Datasheet PDF文件第2页浏览型号UC2871Q的Datasheet PDF文件第3页浏览型号UC2871Q的Datasheet PDF文件第4页浏览型号UC2871Q的Datasheet PDF文件第5页浏览型号UC2871Q的Datasheet PDF文件第6页浏览型号UC2871Q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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