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LM3556 Datasheet(PDF) 8 Page - Texas Instruments

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Part # LM3556
Description  1.5A Synchronous Boost LED Flash Driver w/ High-Side Current Source
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3556 Datasheet(HTML) 8 Page - Texas Instruments

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background image
2.7
3.0
3.3
3.6
3.9
4.2
4.5
3.980
3.997
4.015
4.031
4.048
4.066
4.082
4.099
4.116
4.133
4.150
VIN (V)
25°C
85°C
- 40°C
2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2
1.64
1.68
1.72
1.76
1.80
1.84
1.88
1.92
VIN (V)
25°C
- 40°C
85°C
VIN (V)
1.000
0.1
0.01
0.001
2.7
3.1
3.5
3.9
4.3
4.7
5.1
85°C
25°C
-40°C
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
5.10
5.12
5.14
5.16
5.18
5.20
5.22
5.24
VIN (V)
25°C
85°C
- 40°C
2.7 3.1 3.4 3.8 4.1 4.5 4.8 5.2 5.5
50
55
60
65
70
75
80
85
90
95
100
VIN (V)
TA=25°C
TA=85°C
TA=-40°C
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
0.0
0.5
1.0
1.5
2.0
2.5
3.0
VIN (V)
25°C
85°C
- 40°C
LM3556
SNVS796C – AUGUST 2011 – REVISED APRIL 2013
www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Torch LED Efficiency vs. Vin
Iq Standby vs. VIN
VLED = 3V
EN = 1.8V
Figure 8.
Figure 9.
Iq Shutdown vs. VIN
EN = 0V
Variation of OVP with VIN
Figure 10.
Figure 11.
Input Current Limit
Over-Temperature and VIN
Frequency with VIN and Over-Temperature
Current Limit = 1.7A
Figure 12.
Figure 13.
8
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Copyright © 2011–2013, Texas Instruments Incorporated
Product Folder Links: LM3556


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