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LM3445M Fiches technique(PDF) 5 Page - Texas Instruments

No de pièce LM3445M
Description  Triac Dimmable Offline LED Driver
PDF  39 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

LM3445M Fiches technique(HTML) 5 Page - Texas Instruments

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200.0
190.0
180.0
170.0
160.0
150.0
-50
-25
0
25
50
75
100 125 150
TEMPERATURE (°C)
1.29
1.28
1.27
1.26
1.25
-50
-25
0
25
50
75
100 125 150
OFF Threshold at C11
TEMPERATURE (°C)
8.0
7.5
7.0
6.5
6.0
-50
-25
0
25
50
75
100 125 150
UVLO (VCC) Rising
UVLO (VCC) Falling
TEMPERATURE (°C)
300
280
260
240
220
200
-50
-25
0
25
50
75
100 125 150
TEMPERATURE (°C)
LINE VOLTAGE (VAC)
300k
250k
200k
150k
100k
50k
0
80
90
100
110
120
130
140
C11 = 2.2 nF, R3 = 348 k:
7 LEDs in Series (VO = 24.5V)
LINE VOLTAGE (VAC)
95.0
90.0
85.0
80.0
75.0
80
90
100
110
120
130
140
14 Series connected LEDs
10 Series connected LEDs
LM3445
www.ti.com
SNVS570L – JANUARY 2009 – REVISED MAY 2013
TYPICAL PERFORMANCE CHARACTERISTICS
fSW vs Input Line Voltage
Efficiency vs Input Line Voltage
Figure 3.
Figure 4.
BLDR Resistor vs Temperature
VCC UVLO vs Temperature
Figure 5.
Figure 6.
Min On-Time (tON) vs Temperature
Off Threshold (C11) vs Temperature
Figure 7.
Figure 8.
Copyright © 2009–2013, Texas Instruments Incorporated
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Product Folder Links: LM3445



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