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LNK501

更新时间： 2024-01-03 20:22:21
品牌 Logo 应用领域
帕沃英蒂格盛 - POWERINT /
页数 文件大小 规格书
20页 155K
描述
Energy Efficient, CV/CC Switcher for Very Low Cost Chargers and Adapters

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LNK501 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：7.78模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制技术：PULSE WIDTH MODULATION最大输入电压：6 V
最小输入电压：5.5 V标称输入电压：5.75 V
JESD-30 代码：R-PDIP-T7JESD-609代码：e3
长度：9.655 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：46 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

LNK501 数据手册

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®
LNK501  
™
LinkSwitch Family  
Energy Efficient, CV/CC Switcher for  
Very Low Cost Chargers and Adapters  
Product Highlights  
LinkSwitch  
D
S
Cost Effective Linear/RCC Replacement  
• Lowest cost, component count, constant voltage, constant  
C
current (CV/CC) solution  
• Extremely simple circuit configuration  
• Up to 75% lighter power supply reduces shipping cost  
• Primary based CV/CC solution eliminates 10 to 20  
secondary components for low system cost  
Wide Range  
HV DC Input  
DC  
Output  
(V )  
O
• Combined primary clamp, feedback, IC supply, and loop  
compensation functions–minimizes external components  
• Fully integrated auto-restart for short circuit and open  
loop fault protection–saves external component costs  
• 42 kHz operation simplifies EMI filter design  
• 3 W output with EE13 core for low cost and small size  
(a)  
V
V
O
O
±5%  
±10%  
Much Higher Performance Over Linear/RCC  
• Universal input range allows worldwide operation  
• Up to 70% reduction in power dissipation–reduces  
enclosure size significantly  
• CV/CC output characteristic without secondary feedback  
• System level thermal and current limit protection  
• Meets all single point failure requirements with only one  
additional clamp capacitor  
I
I
O
O
±20%*  
±20%*  
(b)  
For Circuit  
Shown Above  
With Optional  
Secondary Feedback**  
*Estimated tolerance achievable in high volume production  
including transformer and other component tolerances.  
**See Optional Secondary Feedback section.  
PI-2776-091302  
Figure 1. Typical Application – not a Simplified Circuit (a) and  
Output Characteristic Tolerance Envelopes (b).  
• Controlled current in CC region provides inherent soft-start  
• Optional opto feedback improves output voltage accuracy  
EcoSmart®- Extremely Energy Efficient  
• Consumes <300 mW at 265 VAC input with no load  
• Meets Blue Angel, Energy Star, and EC requirements  
• No current sense resistors–maximizes efficiency  
OUTPUT POWER TABLE1  
PRODUCT2  
230 VAC ±15%  
85-265 VAC  
LNK501 P or G  
4 W  
3 W  
Applications  
• Linear transformer replacement in all ≤ 3 W applications  
• Chargers for cell phones, cordless phones, PDAs, digital  
cameras, MP3/portable audio devices, shavers, etc.  
• Home appliances, white goods and consumer electronics  
• TV standby and other auxilliary supplies  
Table 1. Notes: 1. Typical output power for a design achieving  
<300 mW no load consumption in an enclosed adapter measured at  
50 °C ambient. Higher reflected voltage will extend power capability  
with increased no load consumption. See Key Application  
Considerations. 2. See Part Ordering Information.  
Description  
smaller, lighter, and attractive package when compared with the  
traditional"brick".Withefficiencyofupto75%at3Woutputand  
<300mWno-loadconsumption,aLinkSwitchsolutioncansave  
the end user enough energy over a linear design to completely  
pay for the power supply cost in less than one year. LinkSwitch  
integrates a 700 V power MOSFET, PWM control, high voltage  
start-up, current limit, and thermal shutdown circuitry, onto a  
monolithic IC.  
LinkSwitchisspecificallydesignedtoreplacealllineartransformer/  
RCC chargers and adapters in the ≤ 3 W universal range at equal  
or lower system cost with much higher performance and energy  
efficiency.LinkSwitchintroducesarevolutionarytopologyforthe  
design of low power switching power supplies that rivals the  
simplicity and low cost of linear adapters, and enables a much  
September 2002  
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