SGM3727 Datasheet, PDF (5/13 Pages) SG Micro Corp – High Efficiency 38V Step-Up WLED Driver

SGM3727
High Efficiency,
38V Step-Up WLED Driver
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs. LED Current
100
C_OUT = 10μF, L = 10μH
90
V_IN = 5.0V
80
70
60
50
0
V_IN = 3.3V V_IN = 2.8V
10 LEDs Connected
5 10 15 20 25 30 35
LED Current (mA)
Main Switch R_DS(ON) vs. Input Voltage
700
600
500
400
300
200
2.5
3
3.5
4
4.5
5
Input Voltage (V)
90
85
80
75
70
65
60
2.5
Efficiency vs. Input Voltage
I_LED = 30mA
I_LED = 20mA
I_LED = 10mA
10 LEDs Connected
3
3.5
4
4.5
5
Input Voltage (V)
Quiescent Current vs. Input Voltage
0.07
0.06
+85℃ +25℃
0.05
0.04
-40℃
0.03
0.02
2.5
3
3.5
4
4.5
5
Input Voltage (V)
RSET Voltage vs. Temperature
329
324
319
314
309
304
-50 -25
0
25 50
Temperature (℃)
75 100
SG Micro Corp
5
www.sg-micro.com