AME, Inc.
Integrated White LED Driver With
Organic LED Display Power Supply
AME5136
Typical Switching Waveform
Typical Switching Waveform
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VOUT=12V, VIN=3.6V; 4LEDs
IOUT=20mA (RFB1=10W)
VOUT =12V, VIN=2.5V; 4LEDs
IOUT=10mA (RFB1=20 W)
1) V = 20V/div,DC
1) V = 10V/div,DC
2) VSW , 100mV / div,AC
3) InOdUuTctor Current, 200mA / div,DC
T= 10mS / div
2) VSW , 100mV / div,AC
3) InOdUuTctor Current, 200mA / div,DC
T= 10mS / div
Inductor=10mH, COUT=4.7mF
Inductor=10mH, COUT=4.7mF
Step Response
Start-Up/Shutdown
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V
= 12V , VIN=3.6V
V
=12V , VIN=2.7V
1O)ULToad 2mA to 15mA to 2mA ,DC.
1O)UET N , 1V/ div.DC
2) V
, 100mA / div,AC
2) V
, 10/div,DC
3) InOdUuTctor Current 200mA / div,DC
3) InOdUuTctor Current 100mA/div,DC
Load = 4LEDs, T=2ms/div
T= 20mS /div
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AME [ ANALOG MICROELECTRONICS ]
