TB62737FUG Toshiba, TB62737FUG Datasheet - Page 7

• Manufacturer Part Number: TB62737FUG
• Manufacturer: Toshiba

Specifications of TB62737FUG

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

<Reference Data>
Condition: V
(2) C
(4) C
(1) C
(3) C
25
20
15
10
25
20
15
10
25
20
15
10
25
20
15
10
5
0
5
0
5
0
5
0
1
1
1
1
0
0
0
0
= 4.7 μ F, C
= 4.7 μ F, C
= 4.7 μ F, C
= 2.2 μ F, C
IN
20
20
20
20
= 3.6 V, L = 6.8 μ H, 4LEDs, RSENS = 16 Ω @Io = 20 mA
2
2
2
2
ON Duty width[%] V.S. Error with Ideal Value
ON Duty width[%] V.S. Error with Ideal Value
ON Duty width[%] V.S. Error with Ideal Value
ON Duty width[%] V.S. Error with Ideal Value
= 0.1 μ F
= 0.47 μ F
= 1.0 μ F
= 1.0 μ F
40
40
40
40
ON Duty width[%]
ON Duty width[%]
ON Duty width[%]
ON Duty width[%]
TB62737FUG
TB62737FUG
TB62737FUG
TB62737FUG
60
60
60
60
80
80
80
80
7
100
100
100
100
500kHz
1kHz
2kHz
4kHz
8kHz
12kHz
500kHz
1kHz
2kHz
4kHz
8kHz
12kHz
500kHz
1kHz
2kHz
4kHz
8kHz
12kHz
500kHz
1kHz
2kHz
4kHz
8kHz
12kHz
SHDN
SHDN
SHDN
SHDN
VOUT
VOUT
VOUT
VOUT
I
I
I
I
IN
IN
IN
IN
Wave Form
Wave Form
Wave Form
Wave Form
TB62737FUG
2010-07-01