tb62734fmg TOSHIBA Semiconductor CORPORATION, tb62734fmg Datasheet - Page 7
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tb62734fmg
Manufacturer Part Number
tb62734fmg
Description
Step-up Type Dc-dc Converter For White Led?s
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TB62734FMG.pdf
(16 pages)
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1. Example of Application Circuit and Measurement Data: Inductor 1001AS Series (Toko)
2 LED drive
3 to 5 LED drive : L = 6.8 µH
6 LED drive
2.8
2.8
3.1
3.1
3.4
3.4
Input - Efficiency / Output Current
Input - Efficiency / Output Current
: L = 4.7 µH
: L = 10 µH
3.7
3.7
V
CTL
PGND
CC
L
2 LED Drive
3 LED Drive
4
4
TB62734FMG
Vin (V)
Vin (V)
4.3
GND
4.3
A
4.6
4.6
RSENS
S-Di
OVD
4.9
Io
Efficiency
4.9
Io
Efficiency
K
5.2
5.2
5.5
5.5
100
95
90
85
80
100
95
90
85
80
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Efficiency in the range of V
Output current in the range of V
( ): Range of V
L
S-Di : CUS02 1 A/30 V (TOSHIBA)
LED : NSCW215T (NICHIA)
C1
C2
<Measurement Data>
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2 LED
3 LED
4 LED
5 LED
6 LED
2 LED
3 LED
4 LED
5 LED
6 LED
2.8
2.8
: 1001AS series (Size: 3.8 × 3.8 × 1.2 mm)
: C2012JB1E225K (TDK)
: C2012JB1E105K (TDK)
3.1
3.1
Io
Efficiency
Io
Efficiency
IN
3.4
3.4
Output Current
87.25 to 91.90
85.04 to 88.75
83.18 to 86.95
81.15 to 85.36
82.11 to 85.87
20.90 to 23.96
20.80 to 22.62
20.18 to 21.78
19.82 to 21.34
19.95 to 21.40
= 3.0 to 4.3 V
Input - Efficiency / Output Current
Efficiency (%)
Input - Efficiency / Output Current
3.7
3.7
(mA)
IN
6 LED Drive
5 LED Drive
4
Vin (V)
= 2.8 to 5.5 V
4
Vin (V)
IN
4.3
= 2.8 to 5.5 V
4.3
Average Efficiency
TB62734FMG
4.6
Tolerance (%)
4.6
14.65 (5.87)
8.77 (3.88)
7.89 (3.66)
7.67 (3.47)
7.26 (3.22)
90.00
87.24
85.50
83.93
84.35
4.9
(%)
4.9
2006-06-14
5.2
5.2
5.5
5.5
100
95
90
85
80
100
95
90
85
80