RT9363A Datasheet, PDF (8/11 Pages) Richtek Technology Corporation – 3 Channels 90mA x1/x2 Charge Pump White LED Driver

RT9363A
Shutdown Current vs. Temperature
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
VIN = 3.5V
0.0
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
Frequency vs. Temperature
1200
1000
800
600
400
200
VIN = 3.5V
0
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90
Temperature (°C)
x1 Mode Inrush Current Response
EN
(5V/Div)
VOUT
(1V/Div)
CN
(2V/Div)
EN
(5V/Div)
VOUT
(1V/Div)
CN
(2V/Div)
x2 Mode Inrush Current Response
IIN
(100mA/Div)
Time (250us/Div)
VIN = 3.7V
IIN
(100mA/Div)
Time (250us/Div)
VIN = 3.3V
EN
(2V/Div)
ILED
(10mA/Div)
x1 Mode Dimming Operation
Time (5ms/Div)
VIN = 3.7V
VIN
(50mV/Div)
VOUT
(50mV/Div)
CN
(2V/Div)
ILED
(20mA/Div)
x2 Mode Ripple Voltage
Time (2.5us/Div)
VIN = 3.3V
www.richtek.com
8
DS9363A-03 April 2011