TB62736FUG Toshiba, TB62736FUG Datasheet - Page 10

• 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) (#): -

4. Application Circuit Example and Measurement Data (reference data)
Note: These application examples are provided for reference only. Thorough evaluation and testing should be
35
30
25
20
15
10
35
30
25
20
15
10
35
30
25
20
15
10
2.8 to 5.5 V
2.8
2.8
2.8
V
implemented when designing your application's mass production design.
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
SHDN
V
IN
GND
4.6
4.6
4.6
L
1
4.9
4.9
4.9
IOUT
Efficiency
I F
Efficiency
SW
IOUT
Efficiency
I F
Efficiency
IOUT
I F
Efficiency
Efficiency
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
<Measurement Data>
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
10
WLEDs
2 to 6
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
Output Current (mA)
Evaluation conditions
L
C
C
S-Di
WLEDs : NSCW215T (NICHIA Corp.)
1
1
2
3.7
3.7
79.85 to 86.97
80.19 to 85.32
78.77 to 83.60
79.72 to 86.39
78.91 to 85.10
Efficiency (%)
V
5LED Drive, L=10μH
6LED Drive, L=10μH
IN
21.19
20.89
20.64
20.10
19.95
: VLF3010A series (TDK Corp.)
: C2012JB1E225K (TDK Corp.)
: C2012JB1E105K (TDK Corp.)
: CUS02 1 A/30 V (TOSHIBA Corp.)
= 3.6 V
4
4
(Size: 3.0 mm × 3.0 mm × 1.0 mm)
VIN(V)
VIN(V)
4.3
4.3
4.6
4.6
4.9
4.9
Average Efficiency (%)
− 3.08
− 1.86
− 1.68
− 1.82
− 1.94
IOUT
I F
Efficiency
Efficiency
IOUT
I F
Efficiency
Efficiency
Min
TB62736FUG
Tolerance (%)
5.2
5.2
IN
84.02
83.39
80.69
82.87
80.49
5.5
5.5
2010-06-24
= 3.6 V typ.)
100
90
80
70
60
50
100
90
80
70
60
50
Max
1.67
1.33
1.11
1.22
1.26