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LM3555 Scheda tecnica(PDF) 9 Page - Texas Instruments

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Il numero della parte LM3555
Spiegazioni elettronici  LM3555 Synchronous Boost Converter with 500 mA High Side LED Driver and Dual-Mode Control Interface
Download  33 Pages
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Produttore elettronici  TI [Texas Instruments]
Homepage  http://www.ti.com
Logo TI - Texas Instruments

LM3555 Scheda tecnica(HTML) 9 Page - Texas Instruments

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BRCTORCH (#)
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0.00
0
1
2
3
4
5
6
7
TA = -30°C, +25°C, +85°C
VIN (V) = 3.6V, VLED (V) = 3.0V
VIN (V)
0.080
0.075
0.070
0.065
0.060
0.055
0.050
0.045
0.040
2.5
3.0
3.5
4.0
4.5
5.0
5.5
TA = +25°C
VLED (V) = 3.0V
TA = +85°C
TA = -30°C
VIN (V)
1.30
1.12
0.94
0.76
0.58
0.40
2.5
3.0
3.5
4.0
4.5
5.0
5.5
TA = +25°C
TA = +85°C
TA = -30°C
VLED = 3.6V
ILED = 500 mA
VIN (V)
100
90
80
70
60
50
2.5
3.0
3.5
4.0
4.5
5.0
5.5
TA = -30°C
TA = +25°C
TA = +85°C
VLED (@ 500 mA) = 3.6V
BRC (#)
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
TA = +85°C
TA = -30°C and +25°C
VIN (V)
0.60
0.58
0.56
0.54
0.52
0.50
0.48
0.46
0.44
0.42
0.40
2.5
3.0
3.5
4.0
4.5
5.0
5.5
TA = -30°C
TA = +25°C
TA = +85°C
VLED = 3.6V
LM3555
www.ti.com
SNVS594E – JANUARY 2009 – REVISED NOVEMBER 2011
Typical Characteristics (continued)
Unless otherwise specified: TA = 25°C; VIN = 3.6V; CIN1= 10 µF, CIN2= 0.1 µF, COUT = 11 µF; L = 2.2 µH.
Single LED
One LED @ 500mA
Flash Current
LED Current
vs
vs
Brightness Code
Input Voltage
One LED @ 500mA
One LED @ 500mA
Input Current
LED Efficiency
vs
vs
Input Voltage
Input Voltage
Torch Current
60mA Torch Current
vs
vs
Brightness Code
Input Voltage
1 LED
1 LED
Copyright © 2009–2011, Texas Instruments Incorporated
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