采用Lnk304pn的LED 220V照明灯,Lnk304pn 220V LED LAMP
关键字:采用Lnk304pn的LED 220V照明灯
LNK304封装类型
P(DIP-8B)
G(SMD-8B)
D(SO-8C)
LNK304 应用
· 用于非隔离降压或升降压转换器,对线性/无源解决方案进行替换
· LED驱动及工业控制
· 大型和小型家用设备
· 电表﹑定时器
· 恒流发光二极管照明设备
google translate
LNK304 particular output current less than 360mA to replace all linear and non-isolated power supply capacitor buck. Replaced the system cost and power are equal, but better performance and higher efficiency.
LNK304 above in an IC integrates a 700 V power MOSFET, oscillator, simple on / off control circuit, high voltage switched current source, frequency modulation, by-cycle current limiting and over temperature protection circuit. Devices during the startup and power consumption directly from the drain pin of the voltage to provide, so BUCK and flyback converters can save the relevant circuit bias supply. In LNK304 devices fully integrated auto-restart circuit in short circuit, open loop fault conditions, the safety limits the output power, reducing the number of components, reduces system level cost for the load protection circuit. If necessary, IC self-powered operation allows the use of no safety and regulatory requirements of the coupler device as a level change, in order to improve voltage regulation and load regulation.
Alternative Capacitor Buck linear and low-cost solution
The lowest cost, lowest component count buck (BUCK) converter program
The fully integrated auto-restart function, for short circuit and open loop fault protection
Saves the cost of external components
Limit point with precision and work in the 66 kHz
Can use ordinary 1 mH inductor to 120 mA of output current
The strict parameters of tolerance and negligible small temperature drift
Up to 700 V breakdown voltage provides a good ability to resist input surge
Frequency modulation technology significantly reduces EMI (~ 10 dB)
Reduces EMI filter costs
High point of over-temperature shutdown protection (minimum +135 ℃)
With discrete components or passive components buck compared to the power program
With better features
Support the step-down (Buck), buck - boost (Buck-Boost) and flyback topologies
Provide system-level thermal, output short circuit protection and control open loop
Even the structure of a typical circuit can achieve excellent input and load regulation
Provide high-bandwidth fast overshoot-free start
Work limit line voltage ripple suppressed
Input voltage range (85 VAC to 265 VAC)
Built-in current limit point and thermal protection with hysteresis characteristics
Compared with the passive components more efficient power supply options
Relative to the capacitive power factor buck program higher
SMD power supply can be fully realized production
LNK304 basic parameters
Output voltage 12V
Frequency range of 62 ~ 70kHz
Operating temperature -40 ℃ ~ 150 ℃
Isolated Output -
LNK304 current output
230 VAC ± 15% MDCM 120mA
CCM 170mA
85-265 VAC MDCM 120mA
CCM 170mA
LNK304 Package Type
P (DIP-8B)
G (SMD-8B)
D (SO-8C)
LNK304 Applications
* For non-isolated step-down or buck converter, the linear / passive solution replacement
· LED drivers and industrial control
* Large and small home appliances
* ﹑ Timer meter
* Constant current LED lighting
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