AL9910AEV2 Datasheet AL9910AEV2 | P1-P3

AL9910AEV2 User Guide

High Current and High Voltage LED Driver

AL9910AEV2 Rev1 Page 1 of 6

August 2014

www.diodes.com

GeneralDescription

This demonstration board utilizes the

AL9910A high voltage PWM LED Buck

controllerprovidingacosteffectivesolution

foroffline highbrightnessLEDapplications.

Thisuser‐friendlyevaluationboardprovides

users with quick connection to their

different types LEDs string. The

demonstration board can be modified to

adjust the LED output current (2.5A) and

the number of series connected LEDs that

aredriven.



KeyFeatures

 Highoutputcurrent,2.5A

 ~90%efficiency

 DCinputvoltagerangeupto80V

 LowBOMcost

 PWMDimmable



Applications

 SignageanddecorativeLEDlighting

 HighcurrentDC‐DCLEDdriver

 Highintensitylamps

 Streetlamps



AL9910AEV2Specifications

Parameter Value

InputVoltage 40to80VDC

OutputPower 50–60W

LEDCurrent 2.5A(Adjustable)

LEDVoltage 25V

Efficiency ~90%

NumberofLEDs (2)setsof8LEDsin

parallel(Under

Tested)

XYDimension 3.00”x3.25”

ROHSCompliance Yes



EvaluationBoard

Figure1:TopView



ConnectionInstructions

InputVoltage:40to80VDC(DC+,DC‐)

LEDOutputs:LED+(Red),LED‐(Black)



DC-

DC+

LED+

LED-

AL9910AEV2 User Guide

High Current and High Voltage LED Driver

AL9910AEV2 Rev1 Page 2 of 6

August 2014

www.diodes.com

EvaluationBoardSchematic



Figure2:EvaluationBoardSchematic



EvaluationBoardLayout



Figure3:PCBBoardLayoutTopView



Figure4:PCBBoardLayoutBottomView



AL9910AEV2 User Guide

High Current Non-Dimmable

AL9910AEV2 Rev1 Page 3 of 6

August 2014

www.diodes.com

QuickStartGuide

1. Bydefault,theevaluationboardispresetat2.5ALEDCurrentbyR25,andR26.Non‐

DimmablebyR22,removeR22toallowPWMDimminginput.

2. EnsurethattheDCsourceisswitchedOFFordisconnected.

3. ConnecttheDClinewiresofpowersupplyto“VinandGND”ontheleftsideoftheboard.

4. ConnecttheanodewireofexternalLEDstringtoLEDAoutputtestpoint.

5. ConnectthecathodewireofexternalLEDstringtoLEDKoutputtestpoint.

6. Turnonthemainswitch.LEDstringshouldlightup.



BillofMaterial

# Name Quantity Part number Manufacturer Description

1

U3

1

AL9910ASP-13

DiodesInc LEDDriver

2 D1 1

SBR10U200P5-13

DiodesInc

Super Barrier Rectifiers

3

1

DMN10H170SK3-13

DiodesInc

MOSFET 100V/12A

4

1

7447709101

Wurth

100µH, 3.1A Inductor

5

R12,R17,

R21,R22

4

541-0.0ACT-ND

Vishay

0Ω Resistor 1/8W 1% 0805 SMD

6

R24

1

P226KCCT-ND

Panasonic

226kΩ Resistor 1/8W 1% 0805 SMD

7

R25,R26

2

CSRN2512FKR300CT

-ND

Stackpole

0.15Ω Resistor 2W 1% 2512 SMD

8

R16

1

311-1.00KCRCT-ND

Yageo

1KΩ Resistor 1/8W 1% 0805 SMD

9

C2,C5

2

587-1777-1-ND

Taiyo

1µF Cer Cap 100V 10% X7R

10

C3,C4,

C9,C10

4

587-1404-1-ND

Taiyo

2.2µF Cer Cap 100V 10% X7R

11

C11

1

399-1159-1-ND

Kemet

0.01µF Cer Cap 100V 10% X7R

12

C12

1

587-2668-1-ND

Taiyo

10µF Cer Cap 10V 10% X7R



FunctionalPerformance



Manuf BoardType VIN

(VDC)

IIN

(A)

(W)

VLED

(V)

ILED

(A)

PLED

(W)

ILED

Ripple

(%)

Efficiency

(%)

Diodes

Inc

AL9910AEV2

Module

Board

80 0.95 76.00 26.19 2.59 67.83 20 89.25



P1-P3 P4-P6

AL9910AEV2

Mfr. #:

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Description:

EVAL BOARD FOR AL9910A

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