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LNK520PN PDF预览

LNK520PN

更新时间: 2024-02-10 20:21:23
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 844K
描述
Energy Efficient, CV or CV/CC Switcher for Very Low Cost Adapters and Chargers

LNK520PN 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-8/7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:8.41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 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 VJESD-30 代码:R-PDIP-T8
JESD-609代码:e3长度:9.575 mm
功能数量:1端子数量:8
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:0.28 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:49.5 kHz
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
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

LNK520PN 数据手册

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LNK520  
®
LinkSwitch Family  
Energy Efficient, CV or CV/CC Switcher for  
Very Low Cost Adapters and Chargers  
Product Highlights  
+
DC  
Output  
(VO)  
Cost Effective Linear/RCC Replacement  
Lowest cost and component count, constant voltage (CV)  
or constant voltage/constant current (CV/CC) solutions  
Optimized for bias winding feedback  
Up to 75% lighter power supply reduces shipping cost  
Primary based CV/CC solution eliminates 10 to 20  
secondary components for low system cost  
Fully integrated auto-restart for short circuit and open  
loop fault protection – saves external component costs  
42 kHz operation with optimized switching  
Wide Range  
HV DC Input  
D
S
LinkSwitch  
C
(a)  
Example Characteristic  
VO  
Min  
VO  
Typ  
characteristics for significantly reduced EMI  
(CV only)  
(CV/CC)  
±5%  
Much Higher Performance Over Linear/RCC  
±10%  
Universal input range allows worldwide operation  
Up to 70% reduction in power dissipation – reduces  
enclosure size significantly  
IO  
IO  
CV/CC output characteristic without secondary feedback  
System level thermal and current limit protection  
Meets all single point failure requirements with only one  
additional bias capacitor  
Controlled current in CC region provides inherent soft-start  
Optional opto feedback improves output voltage accuracy  
±24%*  
±24%*  
(b)  
For Circuit  
Shown Above  
With Optional  
Secondary Feedback**  
*Estimated tolerance achievable in high volume production (external  
components with ±7.5% transformer inductance tolerance included).  
**See Optional Secondary Feedback section.  
PI-3853-030404  
Figure 1. (a) Typical Application – not a Simplified Circuit and  
(b) Output Characteristic Tolerance Envelopes.  
EcoSmart®– Extremely Energy Efficient  
Consumes <300 mW at 265 VAC input with no load  
Meets California Energy Commission (CEC), Energy  
Star, and EU requirements  
OUTPUT POWER TABLE1  
No-Load  
Input  
Power  
230 VAC ±15% 85-265 VAC  
PRODUCT4  
No current sense resistors – maximizes efficiency  
Min2  
Typ2 Min2 Typ2  
Applications  
3.3 W  
4 W 2.4 W 3 W <300 mW  
LNK520  
P or G  
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  
Constant output current LED lighting applications  
TV standby and other auxiliary supplies  
4.2 W 5.5 W 2.9 W 3.5 W <500 mW3  
Table 1. Notes: 1. Output power for designs in an enclosed adapter  
measured at 50 °C ambient. 2. See Figure 1 (b) for Min (CV only  
designs) and Typ (CV/CC charger designs) power points identified  
on output characteristic. 3. Uses higher reflected voltage transformer  
designs for increased power capability see Key Application  
Considerations section. 4. For lead-free package options, see Part  
Ordering Information.  
Description  
LinkSwitch is specifically designed to replace low power linear  
transformer/RCCchargersandadaptersatequalorlowersystem  
cost with much higher performance and energy efficiency.  
LNK520isequivalenttoLNK500butoptimizedforusewithbias  
winding feedback and has improved switching characteristics  
for significantly reduced EMI. In addition, if bias and output  
windings are magnetically well coupled, output voltage load  
regulation can be improved. With efficiency of up to 75% and  
<300 mW no-load consumption, a LinkSwitch solution can  
save the end user enough energy over a linear design to  
completely pay for the full 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.  
February 2005  

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