TB62736FUG Toshiba, TB62736FUG Datasheet - Page 8

• Manufacturer Part Number: TB62736FUG
• Manufacturer: Toshiba

Specifications of TB62736FUG

• Package: SOT23-6
• Supply Voltage: 2.8 V to 5.5 V
• # Leds Supported: 2 to 6 LEDs in series
• Sw Frequency: 1.1MHz
• Led Current Accuracy: ±5.23% (max)
• Protection Feature: -
• Other Features & Functions: Analog dimming
• Rohs Compatible Product(s) (#): -

2. Application Circuit Example and Measurement Data (reference data)
Note: These application examples are provided for reference only. Thorough evaluation and testing should be
2.8 to 5.5 V
35
30
25
20
15
10
35
30
25
20
15
10
35
30
25
20
15
10
2.8
2.8
2.8
V
IN
implemented when designing your application's mass production design.
=
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)
SHDN
4.3
4.3
4.3
V
IN
GND
4.6
4.6
4.6
L
1
4.9
4.9
SW
4.9
FB
IOUT
I F
Efficiency
Efficiency
IOUT
I F
Efficiency
Efficiency
IOUT
I F
Efficiency
Efficiency
S-Di
5.2
5.2
5.2
5.5
5.5
5.5
100
90
80
70
60
50
100
90
80
70
60
50
100
90
80
70
60
50
<Measurement Data>
WLEDs
Efficiency in the range of V IN = 2.8 to 5.5 V
Output current in the range of V IN = 3.0 to 5.0 V (V
2 to 6
8
35
30
25
20
15
10
35
30
25
20
15
10
2 LEDs
3 LEDs
4 LEDs
5 LEDs
6 LEDs
2 LEDs
3 LEDs
4 LEDs
5 LEDs
6 LEDs
2.8
2.8
3.1
3.1
•
Input Voltage - Efficiency/Output Current
Input Voltage - Efficiency/Output Current
3.4
3.4
Evaluation conditions
L
C
C
S-Di
WLEDs : NSCW215T (NICHIA Corp.)
Output Current (mA)
1
1
2
83.10 to 88.60
81.32 to 86.47
79.15 to 84.63
79.72 to 86.39
78.91 to 85.10
3.7
3.7
Efficiency (%)
V
5LED Drive, L=10μH
6LED Drive, L=10μH
IN
21.17
20.85
20.56
20.10
19.95
: 1001AS series (TOKO, INC)
: C2012JB1E225K (TDK Corp.)
: C2012JB1E105K (TDK Corp.)
: CUS02 1 A/30 V (TOSHIBA Corp.)
= 3.6 V
(Size: 3.6 mm × 3.6 mm × 1.2 mm)
4
4
VIN(V)
VIN(V)
4.3
4.3
4.6
4.6
4.9
4.9
Average Efficiency (%)
− 3.32
− 1.95
− 1.79
− 1.82
− 1.94
IOUT
I F
Efficiency
Efficiency
IOUT
Efficiency
I F
Efficiency
Min
TB62736FUG
Tolerance (%)
5.2
5.2
IN
86.55
84.54
81.30
82.87
80.47
5.5
5.5
2010-06-24
= 3.6 V typ.)
100
90
80
70
60
50
100
90
80
70
60
50
Max
1.73
1.38
1.15
1.22
1.26