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UCC3818ADRG4 PDF预览

UCC3818ADRG4

更新时间: 2024-11-26 04:48:11
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光电二极管信息通信管理
页数 文件大小 规格书
33页 639K
描述
BiCMOS POWER FACTOR PREREGULATOR

UCC3818ADRG4 技术参数

是否Rohs认证: 符合生命周期:Active
零件包装代码:SOIC包装说明:GREEN, PLASTIC, MS-012AC, SOIC-16
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.14Is 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:15 V
最小输入电压:10.3 V标称输入电压:12 V
JESD-30 代码:R-PDSO-G16JESD-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:70 °C最低工作温度:
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认证状态:Not Qualified
座面最大高度:1.75 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:120 kHz技术:BICMOS
温度等级:COMMERCIAL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 mmBase Number Matches:1

UCC3818ADRG4 数据手册

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ꢀꢁꢁ ꢂ ꢃꢄ ꢅ ꢆ ꢇ ꢀꢁ ꢁꢂ ꢃꢄ ꢃꢆ  
ꢀꢁꢁ ꢈ ꢃꢄ ꢅ ꢆ ꢇ ꢀ ꢁꢁ ꢈꢃ ꢄꢃ ꢆ  
SLUS577B − SEPTEMBER, 2003 − REVISED FEBRUARY 2006  
FEATURES  
DESCRIPTION  
D
Controls Boost Preregulator to Near-Unity  
Power Factor  
The UCC3817A and the UCC3818A family  
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
Limits Line Distortion  
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  
150-µA Typical Start-Up Current  
Low-Power BiCMOS Operation  
12-V to 17-V Operation  
Designed in Texas Instrument’s BiCMOS process,  
the UCC3817A/UCC3818A offers new features  
such as lower start-up current, lower power  
dissipation, overvoltage protection, a shunt UVLO  
detect circuitry, a leading-edge modulation  
technique to reduce ripple current in the bulk  
capacitor and an improved, low-offset ( 2 mV)  
current amplifier to reduce distortion at light load  
conditions.  
BLOCK DIAGRAM  
VCC  
15  
OVP/EN 10  
SS 13  
16 V (FOR UCC3817A ONLY)  
7.5 V  
REFERENCE  
9
VREF  
UVLO  
16 V/10 V (UCC3817A)  
1.9 V  
ENABLE  
+
VAOUT  
7
10.5 V/10 V (UCC3818A)  
ZERO POWER  
0.33 V  
VCC  
+
VOLTAGE  
ERROR AMP  
VSENSE 11  
7.5 V  
+
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  
OSCILLATOR  
IAC  
6
5
PKLMT  
+
MOUT  
4
3
12  
14  
CAI  
CAOUT RT  
CT  
UDG-03122  
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.  
ꢔꢤ  
Copyright 2006, Texas Instruments Incorporated  
ꢠ ꢤ ꢡ ꢠꢋ ꢚꢮ ꢜꢛ ꢟ ꢧꢧ ꢥꢟ ꢝ ꢟ ꢞ ꢤ ꢠ ꢤ ꢝ ꢡ ꢩ  
ꢢꢤ  
1
www.ti.com  

UCC3818ADRG4 替代型号

型号 品牌 替代类型 描述 数据表
UCC3818D TI

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