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AL3157 Datasheet(PDF) 4 Page - Diodes Incorporated

Part # AL3157
Description  HIGH EFFICIENCY 1x/2x CHARGE PUMP LED DRIVER FOR SMALL SCREEN BACKLIGHTING
PDF  9 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AL3157 Datasheet(HTML) 4 Page - Diodes Incorporated

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AL3157
HIGH EFFICIENCY 1x/2x CHARGE PUMP LED DRIVER
FOR SMALL SCREEN BACKLIGHTING AND FLASHLIGHT
AL3157
Document number: DS35116 Rev. 1 - 2
4 of 9
www.diodes.com
March 2011
© Diodes Incorporated
Typical Performance Characteristics
Turn-On in 1x Mode
100us/div
Turn-On in 2x Mode
100us/div
Turn-Off in 1x Mode
200ms/div
Turn-Off in 2x Mode
200ms/div
Load Characteristics in 2x Mode
500ns/div
PWM Dimming Control (Duty Cycle=50%)
10us/div
Vout
2V/div
EN1,2
2V/div
VIN=4.2V
TA=25°C
Iin
300mA/div
Vout
2V/div
EN1,2
2V/div
Iin
300mA/div
VIN=3.0V
TA=25°C
Vout
2V/div
EN1,2
2V/div
Iin
300mA/div
VIN=3.0V
TA=25°C
Iin
300mA/div
VIN=4.2V
TA=25°C
EN1,2
2V/div
Vout
2V/div
VIN=3.0V
TA=25°C
Vin
100mVAC/div
Vout
100mVAC/div
Iin
100mAAC/div
Iin
300mA/div
VIN=4V
Freq=20kHz
Duty Cycle=50%
TA=25°C
EN
2V/div
Id1
200mA/div



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