YB1303 Datasheet, PDF (4/8 Pages) YOBON TECHNOLOGIES,INC. – Low Dropout LED Driver

YB1303
Low Dropout LED Driver
Typical Performance Characteristics
V_IN=3.3 to 5.5V, V_EN=3V, T_A=25°C, unless otherwise noted. V_F is LED forward voltage.
Iset vs. Control Voltage
(R_SET=17.4k, Vcathode=0.3V)
160
140
120
100
80
60
40
20
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
Vcontrol (V)
LED Current vs. LED Cathode Voltage
(Vcontrol=3V, VEN=3V)
22
20
Rset=17.4k
18
Iset=100uA
16
14
12
10
8
6
4
2
0
0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.20
Cathode Voltage (V)
LED Current vs. Enable Voltage
(Vcontrol=3V, Vcathode=0.3V, Rset=17.4k)
22
20
18
16
14
12
10
8
6
4
2
0
0
1
2
3
4
5
6
VEN Voltage (V)
LED Current vs. Rset
(VEN=3V, Vcontrol=3V)
45
40
35
30
Vcathode=0.3
25
Vcathode=0.5
20
Vcathode=1
15
10
5
0
0
10
20
30
40
50
60
70
80
Rset (kOhms)
Control Voltage Transient Response
Enable Voltage Transient Response
YB1303 Rev.1.0
www.yobon.com.tw
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