tb62736fugel Marktech Optoelectronics, tb62736fugel Datasheet - Page 10

• Manufacturer Part Number: tb62736fugel
• Description: Step-up Type Dc-dc Converter For White Leds
• Manufacturer: Marktech Optoelectronics

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