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5962-9326101M2A PDF预览

5962-9326101M2A

更新时间: 2024-02-09 16:32:55
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器
页数 文件大小 规格书
12页 312K
描述
High Power Factor Preregulator

5962-9326101M2A 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:CERAMIC,LCC-20Reach Compliance Code:unknown
风险等级:5.89Is Samacsys:N
模拟集成电路 - 其他类型:POWER FACTOR CONTROLLER控制模式:CURRENT-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:35 V
最小输入电压:11 V标称输入电压:18 V
JESD-30 代码:S-PQCC-J20JESD-609代码:e0
长度:8.9662 mm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:0.5 A
封装主体材料:PLASTIC/EPOXY封装代码:QCCJ
封装等效代码:LCC20,.35SQ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:BOOST最大切换频率:200 kHz
技术:BIPOLAR温度等级:MILITARY
端子面层:Tin/Lead (Sn/Pb) - hot dipped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:8.9662 mm
Base Number Matches:1

5962-9326101M2A 数据手册

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UC1854  
UC2854  
UC3854  
High Power Factor Preregulator  
FEATURES  
DESCRIPTION  
Control Boost PWM to 0.99 Power Factor  
The UC1854 provides active power factor correction for power sys-  
tems that otherwise would draw non-sinusoidal current from sinusoi-  
dal power lines. This device implements all the control functions  
necessary to build a power supply capable of optimally using available  
power-line current while minimizing line-current distortion. To do this,  
the UC1854 contains a voltage amplifier, an analog multiplier/divider,  
a current amplifier, and a fixed-frequency PWM. In addition, the  
UC1854 contains a power MOSFET compatible gate driver, 7.5V ref-  
erence, line anticipator, load-enable comparator, low-supply detector,  
and over-current comparator.  
Limit Line Current Distortion To <5%  
World-Wide Operation Without Switches  
Feed-Forward Line Regulation  
Average Current-Mode Control  
Low Noise Sensitivity  
Low Start-Up Supply Current  
Fixed-Frequency PWM Drive  
Low-Offset Analog Multiplier/Divider  
1A Totem-Pole Gate Driver  
The UC1854 uses average current-mode control to accomplish fixed-  
frequency current control with stability and low distortion. Unlike peak  
current-mode, average current control accurately maintains sinusoidal  
line current without slope compensation and with minimal response to  
noise transients.  
The UC1854’s high reference voltage and high oscillator amplitude  
minimize noise sensitivity while fast PWM elements permit chopping  
frequencies above 200kHz. The UC1854 can be used in single and  
three phase systems with line voltages that vary from 75 to 275 volts  
and line frequencies across the 50Hz to 400Hz range. To reduce the  
burden on the circuitry that supplies power to this device, the UC1854  
features low starting supply current.  
Precision Voltage Reference  
These devices are available packaged in 16-pin plastic and ceramic  
dual in-line packages, and a variety of surface-mount packages.  
BLOCK DIAGRAM  
UDG-92055  
6/98  

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