tb62736fugel Marktech Optoelectronics, tb62736fugel Datasheet - Page 9

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

3. Application Circuit Example and Measurement Data (Reference data)
2.8~5.5 V
V
IN
35
30
25
20
15
10
35
30
25
20
15
10
35
30
25
20
15
10
=
2.8
2.8
2.8
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
3LED Drive, L=6.8µH
4LED Drive, L=6.8µH
2LED Drive, L=4.7µH
4
4
4
VIN(V)
V
SHDN
VIN(V)
VIN(V)
CC
4.3
4.3
4.3
GND
L
1
4.6
4.6
4.6
SW
FB
4.9
4.9
4.9
S-Di
Efficiency
IOUT
IOUT
Efficiency
IOUT
Efficiency
5.2
5.2
5.2
5.5
5.5
5.5
WLEDs
100
90
80
70
60
50
100
90
80
70
60
50
100
90
80
70
60
50
2~6
9
Efficiency in the range of V
Output current in the range of V
<Measurement Data>
35
30
25
20
15
10
35
30
25
20
15
10
2.8
2 LED
3 LED
4 LED
5 LED
6 LED
2 LED
3 LED
4 LED
5 LED
6 LED
2.8
• Evaluation conditions
3.1
3.1
L
S-Di
LED
C1
C2
Input Voltage - Efficiency/Output Current
Input Voltage - Efficiency/Output Current
3.4
3.4
Output Current (mA)
V
82.37 to 88.70
80.19 to 86.55
78.11 to 84.54
74.79 to 84.94
74.14 to 83.47
: LQH2M series (Murata Manufacturing Co.,Ltd.)
: CUS02 1 A/30 V (TOSHIBA Corp.)
: NSCW215T (NICHIA Corp.)
: C2012JB1E105K (TDK Corp.)
: C2012JB1E105K (TDK Corp.)
IN
Efficiency (%)
3.7
3.7
(Size 2.0 × 1.6 × 0.95 mm)
5LED Drive, L=10µH
6LED Drive, L=10µH
= 3.6 V center
21.19
20.90
20.63
20.09
19.93
4
4
VIN(V)
VIN(V)
IN
= 2.8 to 5.5 V
4.3
4.3
IN
= 3.0 to 5.0 V
4.6
4.6
TB62736FUG
Average Efficiency
4.9
4.9
-3.26
-1.87
-1.78
-1.88
-1.99
MIN
Tolerance (%)
IOUT
Efficiency
IOUT
Efficiency
5.2
5.2
2004-10-29
86.38
84.12
80.16
79.94
77.17
(%)
5.5
5.5
MAX
1.69
2.17
1.01
1.25
1.07
100
90
80
70
60
50
100
90
80
70
60
50