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UCC2819AD PDF预览

UCC2819AD

更新时间: 2024-11-20 04:48:15
品牌 Logo 应用领域
德州仪器 - TI 调节器输出元件
页数 文件大小 规格书
21页 508K
描述
PROGRAMMABLE OUTPUT POWER FACTOR PREREGULATOR

UCC2819AD 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP, SOP16,.25针数:16
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:0.83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:17 V最小输入电压:10.8 V
标称输入电压:12 VJESD-30 代码:R-PDSO-G16
JESD-609代码:e4长度:9.9 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C最大输出电流:1.2 A
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP16,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
电源:12 V认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Switching Regulator or Controllers
最大供电电流 (Isup):4 mA最大供电电压 (Vsup):17 V
标称供电电压 (Vsup):12 V表面贴装:YES
切换器配置:BOOST最大切换频率:120 kHz
技术:BICMOS温度等级:INDUSTRIAL
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3.9 mm

UCC2819AD 数据手册

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ꢀ ꢁꢁ ꢂꢃ ꢄꢅ ꢆ  
ꢀ ꢁꢁ ꢇꢃ ꢄꢅ ꢆ  
SLUS579 − OCTOBER, 2003  
ꢌꢊ  
FEATURES  
DESCRIPTION  
D
Controls Boost Preregulator to Near-Unity  
Power Factor  
The UCC2819A/UCC3819A provides all the  
functions necessary for active power factor  
corrected preregulators. The controller achieves  
near unity power factor by shaping the ac-input  
line current waveform to correspond to that of the  
ac-input line voltage. Average current mode  
control maintains stable, low distortion sinusoidal  
line current.  
D
D
D
D
D
D
D
D
D
D
D
World Wide Line Operation  
Over-Voltage Protection  
Accurate Power Limiting  
Average Current Mode Control  
Improved Noise Immunity  
Improved Feed-Forward Line Regulation  
Leading Edge Modulation  
Designed in Texas Instrument’s BiCMOS process,  
the UCC3819A offers new features such as lower  
start-up current, lower power dissipation,  
overvoltage protection, a shunt UVLO detect  
circuitry and a leading-edge modulation technique  
to reduce ripple current in the bulk capacitor.  
150-µA Typical Start-Up Current  
Low-Power BiCMOS Operation  
10.8-V to 17-V Operation  
Programmable Output Voltage (Tracking  
Boost Topology)  
The UCC3819A allows the output voltage to be  
programmed by bringing out the error amplifier  
noninverting input.  
BLOCK DIAGRAM  
VCC  
15  
OVP/EN 10  
7.5 V  
REFERENCE  
9
VREF  
1.9 V  
ENABLE  
+
UVLO  
10.2 V/9.7 V  
VAOUT  
7
ZERO POWER  
0.33 V  
VCC  
+
VOLTAGE  
ERROR AMP  
VSENSE 11  
VAI 13  
+
CURRENT  
AMP  
8.0 V  
PWM  
OVP  
Q
+
X
÷
MULT  
+
16 DRVOUT  
+
X
S
2
VFF  
8
X
PWM  
LATCH  
OSC  
CLK  
R
R
MIRROR  
2:1  
1
2
GND  
CLK  
IAC  
6
5
PKLMT  
+
OSCILLATOR  
MOUT  
4
3
12  
14  
UDG-03124  
CAI  
CAOUT RT  
CT  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
ꢑꢢ  
Copyright 2003, Texas Instruments Incorporated  
ꢞ ꢢ ꢟ ꢞꢗ ꢘꢬ ꢚꢙ ꢝ ꢥꢥ ꢣꢝ ꢛ ꢝ ꢜ ꢢ ꢞ ꢢ ꢛ ꢟ ꢧ  
1
www.ti.com  

UCC2819AD 替代型号

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