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LNK302P PDF预览

LNK302P

更新时间: 2024-01-09 02:58:06
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 864K
描述
Lowest Component Count, Energy Efficient Off-Line Switcher IC

LNK302P 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Active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:1.5Is Samacsys:N
其他特性:REQUIRES AN AC SUPPLY OF 85 TO 256V模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制技术:PULSE WIDTH MODULATIONJESD-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:0.2 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座面最大高度:3.68 mm
表面贴装:NO切换器配置:BUCK
最大切换频率:70 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:6.35 mm
Base Number Matches:1

LNK302P 数据手册

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LNK302/304-306  
®
LinkSwitch-TN Family  
Lowest Component Count, Energy Efficient  
Off-Line Switcher IC  
Product Highlights  
Cost Effective Linear/Cap Dropper Replacement  
Lowest cost and component count buck converter solution  
Fully integrated auto-restart for short-circuit and open  
loop fault protection – saves external component costs  
LNK302 uses a simplified controller without auto-restart  
for very low system cost  
66 kHz operation with accurate current limit – allows low cost  
off-the-shelf 1 mH inductor for up to 120 mAoutput current  
Tight tolerances and negligible temperature variation  
High breakdown voltage of 700 V provides excellent  
input surge withstand  
FB  
BP  
S
D
+
+
Wide Range  
HV DC Input  
DC  
LinkSwitch-TN  
Output  
PI-3492-111903  
Figure 1. Typical Buck Converter Application (See Application  
Examples Section for Other Circuit Configurations).  
Frequency jittering dramatically reduces EMI (~10 dB)  
– minimizes EMI filter cost  
High thermal shutdown temperature (+135 °C minimum)  
OUTPUT CURRENT TABLE1  
230 VAC ±15%  
MDCM2 CCM3 MDCM2 CCM3  
LNK302P or G 63 mA 80 mA 63 mA 80 mA  
85-265 VAC  
PRODUCT4  
Much Higher Performance over Discrete Buck and  
Passive Solutions  
Supports buck, buck-boost and flyback topologies  
System level thermal overload, output short-circuit and  
open control loop protection  
Excellent line and load regulation even with typical  
configuration  
LNK304P or G 120 mA 170 mA 120 mA 170 mA  
LNK305P or G 175 mA 280 mA 175 mA 280 mA  
LNK306P or G 225 mA 360 mA 225 mA 360 mA  
Table 1. Notes: 1. Typical output current in a non-isolated buck  
converter. Output power capability depends on respective output  
voltage. See Key Applications Considerations Section for complete  
description of assumptions, including fully discontinuous conduction  
mode (DCM) operation. 2. Mostly discontinuous conduction mode. 3.  
Continuous conduction mode. 4. Packages: P: DIP-8B, G: SMD-8B.  
For lead-free package options, see Part Ordering Information.  
High bandwidth provides fast turn-on with no overshoot  
Current limit operation rejects line ripple  
Universal input voltage range (85 VAC to 265 VAC)  
Built-in current limit and hysteretic thermal protection  
Higher efficiency than passive solutions  
Higher power factor than capacitor-fed solutions  
Entirely manufacturable in SMD  
under 360 mA output current range at equal system cost while  
offering much higher performance and energy efficiency.  
EcoSmart®– Extremely Energy Efficient  
Consumes typically only 50/80 mW in self-powered buck  
topology at 115/230 VAC input with no load (opto feedback)  
Consumes typically only 7/12 mW in flyback topology  
with external bias at 115/230 VAC input with no load  
Meets California Energy Commission (CEC), Energy  
Star, and EU requirements  
LinkSwitch-TN devices integrate a 700 V power MOSFET,  
oscillator,simpleOn/Offcontrolscheme,ahighvoltageswitched  
currentsource, frequencyjittering, cycle-by-cyclecurrentlimit  
and thermal shutdown circuitry onto a monolithic IC. The start-  
up and operating power are derived directly from the voltage  
on the DRAIN pin, eliminating the need for a bias supply and  
associated circuitry in buck or flyback converters. The fully  
integrated auto-restart circuit in the LNK304-306 safely limits  
output power during fault conditions such as short-circuit or  
open loop, reducing component count and system-level load  
protection cost. A local supply provided by the IC allows use  
of a non-safety graded optocoupler acting as a level shifter to  
further enhance line and load regulation performance in buck  
and buck-boost converters, if required.  
Applications  
Appliances and timers  
LED drivers and industrial controls  
Description  
LinkSwitch-TN is specifically designed to replace all linear and  
capacitor-fed (cap dropper) non-isolated power supplies in the  
March 2005  

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