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LM3450 데이터시트(PDF) 13 Page - Texas Instruments

부품명 LM3450
상세설명  LED Drivers with Active Power Factor Correction and Phase Dimming Decoder
PDF  42 Pages
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제조업체  TI2 [Texas Instruments]
홈페이지  https://www.ti.com
Logo TI2 - Texas Instruments

LM3450 데이터시트(HTML) 13 Page - Texas Instruments

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LOGIC
Rectified AC
ZCD
GATE
LM3450/50A
GND
COMP
FB
VAC
CS
2.7V
2.5V
346mV
50 P$
+
-
5 k:
1.5V
Error Amp
Disable
5V
+
-
+
-
Multiplier
VOUT
(Non-
isolated)
1/3
OPTO
(Isolated)
RAC2
RAC1
RZCD
QSW
RCS
CCMP
RFB1
RFB2
L
168mV
Shutdown
+
-
3V
OVP
+
-
IIN-PK
IP-PK
IS-PK
t
i
tON
TSW
LM3450
www.ti.com
SNVS681D – NOVEMBER 2010 – REVISED MAY 2013
Figure 20. CRM Flyback Current Waveforms
Figure 21. PFC Control Circuit
Copyright © 2010–2013, Texas Instruments Incorporated
Submit Documentation Feedback
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Product Folder Links: LM3450



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