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UC3871DWTR PDF预览

UC3871DWTR

更新时间: 2024-02-29 18:53:08
品牌 Logo 应用领域
德州仪器 - TI 驱动器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
14页 1014K
描述
Resonant Fluorescent Lamp Driver

UC3871DWTR 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:GREEN, PLASTIC, LCC-20针数:20
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.65
Is Samacsys:N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:S-PQCC-J20
长度:8.965 mm功能数量:1
端子数量:20最高工作温度:70 °C
最低工作温度: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:COMMERCIAL
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 mmBase Number Matches:1

UC3871DWTR 数据手册

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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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