SGM3132 Datasheet, PDF (5/11 Pages) SG Micro Corp – Ultra Low Dropout Current Source

SGM3132
4-Channel 1-Wire Dimming LED Driver
with Ultra Low Dropout Current Source
TYPICAL PERFORMANCE CHARACTERISTICS
LED Current vs. Input Voltage
30
LED1
25 LED2
LED3
20 LED4
15
10
5
0
2 2.5 3 3.5 4 4.5 5 5.5
Input Voltage (V)
LED Current vs. Temperature
25
23
21
19
17
15
-40
-15
10
35
60
85
Temperature (℃)
LED Current vs. LED Dropout Voltage
25
20
15
10
5
0
0
0.4
0.8
1.2
1.6
2
LED Dropout Voltage (V)
Quiescent Current vs. Temperature
0.6
0.58
0.56
0.54
0.52
0.5
-40
-15
10
35
60
85
Temperature (℃)
Line Transient Response
V_EN = 3.6V
V_IN = 3.2V to 3.7V
V_IN
1V
/div
I_LED
25mA
0mA
Time (100μs/div)
SG Micro Corp
5
www.sg-micro.com