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LNK353 PDF预览

LNK353

更新时间: 2024-01-15 05:37:05
品牌 Logo 应用领域
帕沃英蒂格盛 - POWERINT 开关
页数 文件大小 规格书
16页 856K
描述
Enhanced, Energy Efficient, Low Power Off-Line Switcher IC

LNK353 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete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:8542.39.00.01风险等级:5.65
其他特性:REQUIRES AN AC SUPPLY OF 85 TO 265V模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制技术:PULSE WIDTH MODULATIONJESD-30 代码:R-PDIP-T7
JESD-609代码:e0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:0.4 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:214 kHz
温度等级:AUTOMOTIVE端子面层:TIN LEAD
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 mmBase Number Matches:1

LNK353 数据手册

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LNK353/354  
of the diode for heatsinking. A larger area is preferred at the  
quiet cathode terminal. A large anode area can increase high  
frequency radiated EMI.  
the leading edge current spike event is below ILIMIT(MIN)at the  
endofthetLEB(MIN). Underallconditions, themaximumdrain  
current should be below the specified absolute maximum  
ratings.  
Quick Design Checklist  
3. Thermal Check – At specified maximum output power,  
minimuminputvoltageandmaximumambienttemperature,  
verify that the temperature specifications are not exceeded  
for LinkSwitch-HF, transformer, output diode, and output  
capacitors. Enough thermal margin should be allowed for  
part-to-part variation of the RDS(ON) of LinkSwitch-HF as  
specifiedinthedatasheet.Underlowline,maximumpower,  
a maximum LinkSwitch-HF SOURCE pin temperature of  
100 °C is recommended to allow for these variations.  
As with any power supply design, all LinkSwitch-HF designs  
should be verified on the bench to make sure that component  
specificationsarenotexceededunderworst-caseconditions.The  
following minimum set of tests is strongly recommended:  
1. Maximum drain voltage – Verify that VDS does not exceed  
675Vatthehighestinputvoltageandpeak(overload)output  
power.  
2. Maximumdraincurrent–Atmaximumambienttemperature,  
maximum input voltage and peak output (overload) power,  
verify drain current waveforms for any signs of transformer  
saturation and excessive leading edge current spikes at  
startup. Repeat under steady state conditions and verify that  
Design Tools  
Up-to-date information on design tools can be found at the  
Power Integrations website: www.powerint.com.  
Input Filter  
Capacitor  
TOP VIEW  
Y1-  
Capacitor  
+
T
r
a
n
s
f
HV DC  
Input  
+
DC  
Out  
-
-
o
r
m
e
r
Output Filter  
Capacitor  
PRI  
SEC  
D
S
S
LinkSwitch-HF  
Opto-  
coupler  
Maximize hatched copper  
S
S
BP  
FB  
areas (  
) for optimum  
heatsinking  
PI-3890-102704  
CBP  
Figure 6. Recommended Printed Circuit Layout for LinkSwitch-HF in a Flyback Converter Configuration.  
F
2/05  
6

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