SP6415 Datasheet, PDF (10/12 Pages) Sipex Corporation – Integrated White LED Driver With Organic LED Display Power Supply

Typical Switching Waveform

2
3
V_OUT=2V, V _IN=2.5V; 4LEDs
I_OUT=0mA (R_FB=20 Ω)
) V _SW= 20V/div,DC
2)
3)
IVn^Od^Uu^Tc, to0r ^{0CmurVre/ndt,iv2,0A0CmA}
/
div,DC
T= 0µS / div
Inductor=0µH, C_OUT=4.7µF
Step Response

2
3
V_OUT= 2V , V _IN=3.6V
) Load 2mA to 5mA to 2mA ,DC.
2) V _OUT, 00mA / div,AC
3) Inductor Current 200mA / div,DC
T= 20µS /div
Typical Performance Characteristics
Typical Switching Waveform

2
3
V_OUT=2V, V_IN=3.6V; 4LEDs
I_OUT=20mA (R_FB=0Ω)
) V _SW= 0V/div,DC
2) V _OUT, 00mV / div,AC
3) Inductor Current, 200mA / div,DC
T= 0µS / div
Inductor=0µH, C_OUT=4.7µF
Start-Up/Shutdown

2
3
V_OUT=2V , V _IN=2.7V
) EN , V/ div.DC
2) V _OUT, 0/div,DC
3) Inductor Current 00mA/div,DC
Load = 4LEDs, T=2ms/div
FB Trip Point vs Temperature
SUB Display
.25
.24
.23
.22
.2
V _IN=4.2V
.20
V _IN=3.6V
.
-40
-20
0
20
40
60
Temperature (^oC)
80 85
Output Over Voltage Protection vs. Temp.
23.0
22.8
22.6
22.4
22.2
22.0
2.8
2.6
2.4
V_IN=3.6V
2.2
2.0
-40
-20
0
20
40
60
Temperature (^oC)
80 85
Feb27-07 Rev K
Integrated White LED Driver With Organic LED Display Power Supply
10
© 2007 Sipex Corporation