RT9378 RICHTEK [Richtek Technology Corporation], RT9378 Datasheet - Page 6

• Manufacturer Part Number: RT9378
• Description: 4 CHs 100mA x1/x1.5/x2 Charge Pump White LED Driver
• Manufacturer: RICHTEK [Richtek Technology Corporation]

(200mA/Div)
RT9378
www.richtek.com
6
(10mA/Div)
(2V/Div)
(5V/Div)
(2V/Div)
(2V/Div)
I
I
IN
LED
V
C2P
EN
EN
OUT
x1.5 Mode Inrush Current Response
V
IN
= 3.1V
x1 Mode Dimming Operation
Time (100μs/Div)
Time (1ms/Div)
V
IN
= 3.7V
(100mA/Div)
(200mA/Div)
(50mV/Div)
(20mV/Div)
V
V
(5V/Div)
(2V/Div)
I
(5V/Div)
(2V/Div)
OUT
I
IN
IN
IN
C2P
V
C2P
EN
OUT
V
V
x2 Mode Inrush Current Response
IN
IN
= 2.8V
= 3.2V
Ripple & Spike
Time (100μs/Div)
Time (1μs/Div)
DS9378-03 April 2011