Diodes AL3159 - Manual (Page 4)

AL3159
HIGH EFFICIENCY 1x/2x CHARGE PUMP
FOR WHITE LED APPLICATIONS
AL3159
Document number: DS35048 Rev. 2 - 2
4 of 10
www.diodes.com
January 2011
© Diodes Incorporated
NEW PROD
UC
T
Typical Performance Characteristics
Turn-On to 1x Mode
50us/div
Turn-On to 2x Mode
100us/div
Turn-Off from 1x Mode
200ms/div
Turn-Off from 2x Mode
200ms/div
Load Characteristics in 2x Mode
1us/div
Load Characteristics in 2x Mode
1us/div
Vout
2V/div
CTL1,2,3
2V/div
V
IN
=4.2V
T
A
=25°C
I
L
=20mA
Iin
200mA/div
Cp
2V/div
Vout
2V/div
CTL1,2,3
2V/div
Iin
200mA/div
Cp
2V/div
V
IN
=3.0V
T
A
=25°C
I
L
=20mA
Cp
2V/div
Vout
2V/div
CTL1,2,3
2V/div
Iin
200mA/div
Cp
2V/div
V
IN
=3.0V
T
A
=25°C
I
L
=20mA
Iin
200mA/div
V
IN
=4.2V
T
A
=25°C
I
L
=20mA
CTL1,2,3
2V/div
Vout
2V/div
V
IN
=2.7V
T
A
=25°C
I
L
=20mA
Vin
200mV
AC /div
Vout
200mV
AC /div
Iin
100mA
AC /div
V
IN
=3.0V
T
A
=25°C
I
L
=20mA
Vin
200mV
AC /div
Vout
200mV
AC /div
Iin
100mA/div