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UCC3974PWG4 PDF预览

UCC3974PWG4

更新时间: 2024-09-20 14:38:39
品牌 Logo 应用领域
德州仪器 - TI 信息通信管理开关光电二极管
页数 文件大小 规格书
16页 550K
描述
FLUORESCENT LIGHT CONTROLLER, 60kHz SWITCHING FREQ-MAX, PDSO16, 5.10 X 6.60 MM, GREEN, TSSOP-16

UCC3974PWG4 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:TSSOP
包装说明:TSSOP, TSSOP16,.25针数:16
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.69
模拟集成电路 - 其他类型:FLUORESCENT LIGHT CONTROLLER控制技术:PULSE WIDTH MODULATION
最大输入电压:25 V最小输入电压:4.5 V
标称输入电压:12 VJESD-30 代码:R-PDSO-G16
JESD-609代码:e4长度:5 mm
湿度敏感等级:2功能数量:1
端子数量:16最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
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:1.2 mm
子类别:Switching Regulator or Controllers标称供电电压 (Vsup):12 V
表面贴装:YES切换器配置:SINGLE
最大切换频率:60 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:0.65 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:4.4 mmBase Number Matches:1

UCC3974PWG4 数据手册

 浏览型号UCC3974PWG4的Datasheet PDF文件第2页浏览型号UCC3974PWG4的Datasheet PDF文件第3页浏览型号UCC3974PWG4的Datasheet PDF文件第4页浏览型号UCC3974PWG4的Datasheet PDF文件第5页浏览型号UCC3974PWG4的Datasheet PDF文件第6页浏览型号UCC3974PWG4的Datasheet PDF文件第7页 
ꢀ ꢁꢁ ꢂꢃ ꢄꢅ  
ꢀ ꢁꢁ ꢆꢃ ꢄꢅ  
SLUS485A – JULY 2001 – REVISED NOVEMBER 2001  
ꢉꢌ  
FEATURES  
APPLICATIONS  
D
D
D
D
Synchronous or Nonsynchronous Operation  
Dual Output and Control Stages  
BiCMOS Technology  
D
D
D
Portable PCs  
Desktop LCD Monitors  
Internet Appliances  
Accurate Current Control with 2-mA Typical  
Supply Current  
DESCRIPTION  
D
D
D
D
Analog or Digital Low-Frequency Dimming  
Capability  
Design goals for a cold cathode fluorescent lamp  
(CCFL) converter used for a liquid crystal display  
(LCD) monitor application include small size, high  
efficiency, and low cost. The UCC2974/UCC3974  
CCFL controllers provide the necessary circuit  
blocks to implement a highly efficient LCD monitor  
backlight supply in a small 16-pin TSSOP  
package. The device features two control stages  
for operating independent resonant tanks for  
multi-lamp designs. The BiCMOS controller  
typically consumes less than 2-mA of operating  
current, improving overall system efficiency.  
External parts count is minimized and system cost  
is reduced by integrating such features as dual  
PWM driver stages, open lamp protection,  
overvoltage clamp, and synchronization circuitry  
between the buck and push-pull stages. The  
device operates in both analog and low-frequency  
dimming modes.  
Open Lamp Protection with Voltage Clamp  
4.5-V to 25-V Operation  
PWM Frequencies Synchronized to External  
Resonant Tanks  
D
TSSOP-16 (PW) Package  
TYPICAL APPLICATION  
VIN  
VIN  
VIN  
UCC3974  
OUT1  
1
2
3
4
5
6
7
OUT2 16  
GND 15  
VIN  
BUCK1  
COMP1  
FB1  
BUCK2 14  
CBP 13  
COMP2 12  
FB2 11  
RC  
RD  
MODE 10  
BRIGHT  
SYNC  
8
DIM  
LFDSYNC  
9
UDG–01023  
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.  
ꢌꢡ  
Copyright 2001, Texas Instruments Incorporated  
ꢝ ꢡ ꢞ ꢝꢖ ꢗꢫ ꢙꢘ ꢜ ꢤꢤ ꢢꢜ ꢚ ꢜ ꢛ ꢡ ꢝ ꢡ ꢚ ꢞ ꢦ  
1
www.ti.com  

UCC3974PWG4 替代型号

型号 品牌 替代类型 描述 数据表
UCC3974PW TI

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