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IW3614-02

更新时间： 2024-11-24 01:11:07
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18页 1829K
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AC/DC Digital Power Controller

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IW3614-02 数据手册

 浏览型号IW3614-02的Datasheet PDF文件第2页浏览型号IW3614-02的Datasheet PDF文件第3页浏览型号IW3614-02的Datasheet PDF文件第4页浏览型号IW3614-02的Datasheet PDF文件第5页浏览型号IW3614-02的Datasheet PDF文件第6页浏览型号IW3614-02的Datasheet PDF文件第7页 
iW3614  
AC/DC Digital Power Controller for  
High Power Factor Dimmable LED Drivers  
1.0 Features  
2.0 Description  
● Isolated AC/DC offline 100 VAC / 230 VAC LED driver  
The iW3614 is a high performance AC/DC offline power  
supply controller for dimmable LED luminaires, which uses  
advanced digital control technology to detect the dimmer  
type and phase. The dimmer conduction phase controls  
the LED brightness. The LED brightness is modulated by  
PWM-dimming. iW3614’s unique digital control technology  
eliminates visible flicker.  
● Meets harmonic requirements, high power factor  
(power factor > 0.9 without dimmer)  
● Line frequency ranges from 45Hz to 66Hz  
● Intelligent wall dimmer detection  
x
x
x
x
Leading-edge dimmer  
Trailing-edge dimmer  
No-dimmer detected  
Unsupported dimmer  
iW3614 can operate with all dimmer schemes including:  
leading-edge dimmer, trailing-edge dimmer, as well as  
other dimmer configurations such as R-type, R-C type or  
R-L type. When a dimmer is not present, the controller can  
automatically detect that there is no dimmer.  
● Hybrid dimming scheme  
iW3614 operates in quasi-resonant mode to provide high  
efficiency. The iW3614 provides a number of key built-  
in features. The iW3614 uses iWatt’s advanced primary-  
side sensing technology to achieve excellent line and load  
● Wide dimming range from 1% up to 100%  
● No visible flicker  
● Resonant control to achieve high efficiency, 85% without regulation without secondary feedback circuitry. In addition,  
dimmer  
iW3614’s pulse-by-pulse waveform analysis technology  
allows accurate LED current regulation. The iW3614  
maintains stability over all operating conditions without the  
need for loop compensation components. Therefore, the  
iW3614 minimizes external component count, simplifies EMI  
design and lowers overall bill of materials cost.  
● Temperature compensated LED current  
● Small size design  
x
x
x
Small size input bulk capacitor  
Small size output capacitor  
Small transformer  
3.0 Applications  
● Primary-side sensing eliminates the need for opto-  
isolator feedback and simplifies design  
● Dimmable LED luminaires  
● Optimized for 3W - 15W output power  
● Tight LED current regulation ± 5%  
● Fast start-up, typically 10µA start-up current  
● Hot-plug LED module support  
● Capable of higher output power with enhanced external  
driver  
● Multiple protection features:  
x
x
x
x
x
x
x
LED open circuit protection  
Single-fault protection  
Over-current protection  
LED short circuit protection  
Current sense resistor short circuit protection  
Over-temperature protection  
Input over-voltage protection  
Rev. 0.7  
iW3614  
Page 1  
PReliminaRy  
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