TB62737FUG Toshiba, TB62737FUG Datasheet - Page 5

• 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) (#): -

Current Dimming Control
Recommended Brightness Control Circuits are 5 types.
1) Input analog voltage to SHDN terminal
I
Linearity error in V-A Conversion is within +/−10%.
I
F
F
SHDN Voltage
Valuable Rate
can be adjusted in range of 25% to 100% after set with external resistor connected RSENS terminal.
100
80
60
40
20
0
0
V
SHDN
0.2
0.4
= 0 V to 0.5 V
0
I
I
F
F
0.6
variable rate
0.8
Current variable due to SHDN pin
1.0
V
SHDN
1.2
V
Vin = 3.0 V
25 to 100
SHDN
1.4
5
= 1 V to 2.5 V
1.6
(V)
1.8
2.0
2.2
V
SHDN
2.4
100
2.6
> 2.5 V
2.8
25
20
15
10
5
0
TB62737FUG
Unit: %
2010-07-01
Note