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TB62736FUG Fiches technique(PDF) 10 Page - Marktech Corporate

No de pièce TB62736FUG
Description  Step-up Type DC-DC Converter for White LEDs
Download  13 Pages
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Fabricant  MARKTECH [Marktech Corporate]
Site Internet  http://www.marktechopto.com
Logo MARKTECH - Marktech Corporate

TB62736FUG Fiches technique(HTML) 10 Page - Marktech Corporate

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TB62736FUG
2004-10-29
10
4.
Application Circuit Example and Measurement Data
(Reference data)
• Evaluation conditions
L
: VLF3010A series (TDK Corp.)
(Size 3.0
× 3.0 × 1.0 mm)
S-Di
: CUS02 1 A/30 V (TOSHIBA Corp.)
LED
: NSCW215T (NICHIA Corp.)
C1
: C2012JB1E105K (TDK Corp.)
C2
: C2012JB1E105K (TDK Corp.)
VIN =
2.8~5.5 V
L1
S-Di
VCC
SW
SHDN
GND
FB
2~6
WLEDs
Input Voltage - Efficiency/Output Current
2LED Drive, L=4.7µH
10
15
20
25
30
35
2.8
3.1
3.4
3.7
4
4.3
4.6
4.9
5.2
5.5
VIN(V)
50
60
70
80
90
100
Efficiency
IOUT
Input Voltage - Efficiency/Output Current
3LED Drive, L=6.8µH
10
15
20
25
30
35
2.8
3.1
3.4
3.7
4
4.3
4.6
4.9
5.2
5.5
VIN(V)
50
60
70
80
90
100
IOUT
Efficiency
Input Voltage - Efficiency/Output Current
4LED Drive, L=6.8µH
10
15
20
25
30
35
2.8
3.1
3.4
3.7
4
4.3
4.6
4.9
5.2
5.5
VIN(V)
50
60
70
80
90
100
IOUT
Efficiency
Input Voltage - Efficiency/Output Current
5LED Drive, L=10µH
10
15
20
25
30
35
2.8
3.1
3.4
3.7
4
4.3
4.6
4.9
5.2
5.5
VIN(V)
50
60
70
80
90
100
IOUT
Efficiency
Input Voltage - Efficiency/Output Current
6LED Drive, L=10µH
10
15
20
25
30
35
2.8
3.1
3.4
3.7
4
4.3
4.6
4.9
5.2
5.5
VIN(V)
50
60
70
80
90
100
IOUT
Efficiency
<Measurement Data>
Efficiency in the range of VIN = 2.8 to 5.5 V
Efficiency (%)
Average Efficiency
(%)
2 LED
79.85~86.97
84.02
3 LED
80.19~85.32
83.39
4 LED
78.77~83.60
80.69
5 LED
79.72~86.39
82.87
6 LED
78.91~85.10
80.49
Output current in the range of VIN = 3.0 to 5.0 V
Tolerance (%)
Output Current (mA)
VIN = 3.6 V center
MIN
MAX
2 LED
21.19
-3.08
1.67
3 LED
20.89
-1.86
1.33
4 LED
20.64
-1.68
1.11
5 LED
20.10
-1.82
1.22
6 LED
19.95
-1.94
1.26


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