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TNY267

更新时间： 2024-01-31 13:04:18
品牌 Logo 应用领域
帕沃英蒂格盛 - POWERINT DVDPC
页数 文件大小 规格书
26页 479K
描述
Generic PCB for DVD Player using TinySwitch-II

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中文翻译

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TNY267 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Not Recommended零件包装代码：DIP
包装说明：DIP,针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：14 weeks
风险等级：7.07Samacsys Confidence：4
Samacsys Status：ReleasedSamacsys PartID：314246
Samacsys Pin Count：7Samacsys Part Category：Power Supply
Samacsys Package Category：OtherSamacsys Footprint Name：P-Package(DIP-8B)_1
Samacsys Released Date：2017-09-02 09:36:16Is Samacsys：N
其他特性：REQUIRES AN AC SUPPLY OF 85 TO 265 V模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
JESD-30 代码：R-PDIP-T7JESD-609代码：e3
长度：9.575 mm功能数量：1
端子数量：7最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：0.72 A
封装主体材料：PLASTIC/EPOXY封装代码：DIP
封装形状：RECTANGULAR封装形式：IN-LINE
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
表面贴装：NO切换器配置：SINGLE
最大切换频率：140 kHz温度等级：AUTOMOTIVE
端子面层：MATTE TIN端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：7.62 mm
Base Number Matches：1

TNY267 数据手册

 浏览型号TNY267的Datasheet PDF文件第4页浏览型号TNY267的Datasheet PDF文件第5页浏览型号TNY267的Datasheet PDF文件第6页浏览型号TNY267的Datasheet PDF文件第8页浏览型号TNY267的Datasheet PDF文件第9页浏览型号TNY267的Datasheet PDF文件第10页 
DER-9  
Generic PCB for DVD Player using TinySwitch-II  
February 4, 2004  
4 Circuit Description  
4.1 Input EMI Filtering  
C1 and C2 are the bulk capacitors. Together with L1 and L2, they form the EMI filter.  
TinySwitch-II’s built-in frequency jitter helps achieve low EMI in spite of this very simple  
EMI filter.  
C18 is an option for a high voltage ceramic capacitor in case a single electrolytic  
capacitor is required for the bulk capacitor.  
4.2 Primary Clamp Snubber  
D5, R1, R2, and C3 form the primary clamp snubber to clamp the voltage spike at the  
Drain pin after TinySwitch-II turn-off. D5 is a 1N4007G, a glass-passivated version of the  
standard 1N4007, with controlled reverse recovery. Its use, along with R2, improves EMI  
and efficiency.  
4.3 Output filtering  
C6, C8, C10, C12 and C14 are the main output capacitors. C7, C9, C11 and C13, along  
with L3, L4, L5 and R8, form second-stage output filters.  
4.4 Output Feedback  
U2, VR1, and R15 form the voltage feedback network. The 5V output voltage setpoint is  
set by the voltage drops of U2, VR1, and R15. The TinySwitch-II unique feedback  
scheme, with constant feedback current over line and load changes, means that the  
current in the zener does not change, thus the voltage drops in U2, VR1, and R15 do not  
change. This yields tight regulation in spite of the circuit’s simplicity and low cost.  
4.5 “DC Switch”  
J4 is connected to a switch, wherein if it is closed, the 5V output drops to about 1.2V,  
because the zener ZR1 is essentially shorted out. All the outputs drop to about 1/5th of  
their normal voltages. During this condition, the load draws very little current. Because  
of TinySwitch-II’s EcoSmart operation, it draws very little input power - <200 mW. This  
“DC Swtich” can be used in place of a normal “AC Switch” that’s used to disconnect the  
AC power. The DC Switch is lower cost because it does not have to be Safety–rated,  
and is lower voltage.  
4.6 +8V Option  
Q1, R4, R5 and R6 form a linear regulator to generate +8V in case of +8V is required.  
VR3 is another solution of generating +8V. Yet another option is to use a zener as a  
series pass element.  
4.7 –22V option  
R8 and C13 form a post-stage filter for –22V.  
Power Integrations  
Tel: +1 408 414 9200 Fax: +1 408 414 9201  
Page 7 of 26  
www.powerint.com  
1...45678910...26

中文翻译

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