AME5136 Datasheet, PDF (11/15 Pages) Analog Microelectronics – Integrated White LED Driver With Organic LED Display Power Supply

AME, Inc.
AME5136
Typical Switching Waveform
1
2
3
V =12V, V =2.5V; 4LEDs
OUT
IN
I =10mA
OUT
(R =20
FB1
Ω)
1) V = 20V/div,DC
SW
2) V , 100mV / div,AC
OUT
3) Inductor Current, 200mA / div,DC
T= 10µS / div
Inductor=10µH, C =4.7µF
OUT
Step Response
1
2
3
V = 12V , V =3.6V
OUT
IN
1) Load 2mA to 15mA to 2mA ,DC.
2) V , 100mA / div,AC
OUT
3) Inductor Current 200mA / div,DC
T= 20µS /div
Integrated White LED Driver With
Organic LED Display Power Supply
Typical Switching Waveform
1
2
3
V =12V, V =3.6V; 4LEDs
OUT
IN
I
OUT
=20mA
(R_FB1=10Ω
)
1) V = 10V/div,DC
SW
2) V , 100mV / div,AC
OUT
3) Inductor Current, 200mA / div,DC
T= 10µS / div
Inductor=10µH,
C
OUT
=4.7µF
Start-Up/Shutdown
1
2
3
V =12V , V =2.7V
OUT
IN
1) EN , 1V/ div.DC
2) V , 10/div,DC
OUT
3) Inductor Current 100mA/div,DC
Load = 4LEDs, T=2ms/div
11