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LM3502ITLX-25NOPB Scheda tecnica(PDF) 9 Page - Texas Instruments

Il numero della parte LM3502ITLX-25NOPB
Spiegazioni elettronici  Step-Up Converter for White LED Applications
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

LM3502ITLX-25NOPB Scheda tecnica(HTML) 9 Page - Texas Instruments

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5.0
7.5
10.0
12.5
15.0
17.5
20.0
22.5
25.0
27.5
30.0
32.5
35.0
LED CURRENT (mA)
40
45
50
55
60
65
70
75
80
85
90
2.5
VIN = 5.5V
VIN = 3.3V
VIN = 2.7V
VIN = 4.2V
VIN = 3V
2
12
22
32
42
52
62
LED CURRENT (mA)
40
45
50
55
60
65
70
75
80
85
90
VIN = 2.7V
VIN = 3V
VIN = 3.3V
VIN = 4.2V
VIN = 5.5V
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
TEMPERATURE (
oC)
1.75
1.95
-40
1.80
1.85
1.90
VIN = 2.5V
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
1.50
2.00
2.50
3.00
3.50
4.00
2.5
25
oC
125
oC
-40
oC
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
TEMPERATURE (
oC)
0.93
0.94
0.95
0.96
0.97
0.98
0.99
1.00
1.01
1.02
1.03
-40
VIN = 2.5V
3.0
3.5
4.0
4.5
5.0
5.5
INPUT VOLTAGE (V)
0.400
0.440
0.480
0.520
0.560
0.600
2.5
-40
oC
0.420
0.460
0.500
0.540
0.580
125
oC
25
oC
LM3502
www.ti.com
SNVS339A – SEPTEMBER 2005 – REVISED AUGUST 2006
Typical Performance Characteristics
( Circuit in Figure 1: L = DO1608C-223 and D = MBRM140T3. Efficiency:
η = POUT/PIN = [(VOUT – VFb) * IOUT]/[VIN * IIN]. TA=
25°C, unless otherwise stated.)
IQ (Non-Switching)
Switching Frequency
vs
vs
VIN
Temperature
Figure 7.
Figure 8.
IQ (Switching)
IQ (Switching)
vs
vs
VIN
Temperature
Figure 9.
Figure 10.
10 LED Efficiency
8 LED Efficiency
vs
vs
LED Current
LED Current
Figure 11.
Figure 12.
Copyright © 2005–2006, Texas Instruments Incorporated
Submit Documentation Feedback
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Product Folder Links: LM3502


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