FlexBlock A011 V1 - LUXdrive

1 External a nalog/digital i ntensity c ontrolExternal p otentiometer i ntensity c ontrol ( 0%, 5-100%)Continuous output s hort c ircuit p rotection2 Continuous output o pen c ircuit p rotectionInput reverse polarity protection with Polarifet TechnologyPulse a nd s trobe c apable ( dim input) 2014 LUXdrive , A Division of LEDdynamics, Inc. cations subject to change without notice. June, 2014 - Rev in the USALED dynamics, Output Wide Range LED Power ModuleA011 FlexBlockTMDATA SHEET Page 1 of 9 Product OverviewRoHSC o mp l i a n t2 0 0 2 / 9 5 / E CPbTypical ApplicationsFeaturesDC i nput v oltage u p t o 3 2V350mA, 500mA, or 700mA c onstant c urrent o utput1 Extremely s mall f orm f actor1 ( )18 AWG wires for easy electrical connectionsSolar & L andscape L ightingArchitectural L ightingTrack L ightingAutomotive & Marine L ightingPortable L ighting & F lashlightsPoint o f P urchase L ightingDesk & R eading L ampsSignal & Marker L ightingFlashing & S trobe L ightingCabinet & Display C ase L ightingSign & C hannel L ettersMuch a011 FlexBlock High Output Wide RangeLED P ower Modules a re a l ine o f t rue c urrentregulated d rivers f or p owering L EDs.

2 TheLUXdrive FlexBlock line o f L ED d rivers a re t heideal choice f or p owering a ll t ypes o f h igh-brightness a nd h igh-power L ED packages a LED d rivers provide high e ciencyand r equire n o e xternal c urrent l imitingresistors. A f ast r esponse c urrent-sensing c ircuitmakes t he FlexBlock ideal f or a pplications where ashi ng o r s trobe o peration o f t he L ED(s) i srequired. As a Buck-Boost driver, the FlexBlock can handle LED loads that are above, below, or thesame voltage as the power dimming input, compatible with many commercially available 0-10V low voltage dimmingcontrols, for example , the LUXdrive A019 provides a convenient method to control thebrightness of the LEDs. T he s tandard u nits a re p otted i n a n e xtremely s mall, low pro le package1 and come with 6 18 AWG colored leads.

3 1 - Custom units can be designed for OEM applications. Contact LUXdrive for more Dimming compatible with many available controls2 - When wired in the default Buck-Boost con guration. 2014 LUXdrive , A Division of LEDdynamics, Inc. cations subject to change without notice. June, 2014 - Rev in the USALED dynamics, Maximum RatingsTypical CharacteristicsInput Voltage.. 32 VDCO utput Voltage.. 48 VDC3 DIM Input .. 10 VOutput toler ance (within speci ed temp. range) .. 10%E ciency .. 90%Input Voltage Minimum.. 10 VDCMax Output Voltage in Buck-Boost Mode (Default).. 48 VDC - VinDIM GNDVin +Vin -LED +DIM LED - a011 FlexBlockDC Input10-32V10-32 VPart NumberA011-D-V-500A011-D-V-350 Drive Current(mA)350500 Control/Dimming0-10V0-10 VConnectionType6 Wires6 WiresTable 1 Product SelectionFigure view Pinout of theA011 FlexBlockPart Number Identi cation TablePart Number Identi cationThe part number is explained below:Where: a011 ABCCC designates the LUXdrive Product ID for a FlexBlockdesignates Power Input Type (D for DC only)designates Dimming Type (V = 0-10V Dimming)designates Drive Current (350 = 350mA, 500 = 500mA, 700 = 700mA) a011 - A- B -CCCN otes for Table 1: Custom units available upon request, restrictions apply.

4 Contact LUXdrive for additional Output Voltage in Boost Only Mode .. 48 VDCHigh Output Wide Range LED Power ModuleA011 FlexBlockTMDATA SHEET Page 2 of 93 - When wired in the Boost Only WiresFigure Buck-Boost Mode Output Current vs. Vin 2014 LUXdrive , A Division of LEDdynamics, Inc. cations subject to change without notice. June, 2014 - Rev in the USALED dynamics, Buck-Boost Mode E ciency vs. VinGraphsFigure Boost Only Mode Output Current vs. VinFigure Boost Only Mode E ciency vs. VinHigh Output Wide Range LED Power ModuleA011 FlexBlockTMDATA SHEET Page 3 of 9 Output current, a011 -D-V-500..500mAOutput current, a011 -D-V-700..700mA 2014 LUXdrive , A Division of LEDdynamics, Inc. cations subject to change without notice. June, 2014 - Rev in the USALED dynamics, FlexBlockTM High Output LED Power Module is a high-e ciency dc to dc converter that delivers a xedoutput current by varying the output voltage as required to maintain the speci ed current.

5 Because theforward voltage of LEDs can change based on several environmental factors as well as the age of the LED, itis important to use this type of driver in an LED system. A fast response current-sensing circuit permits theunit to be used in applications where ashing or pulsing of the LEDs is required. Several options are availableallowing for use with many types of LEDs and in a variety of operating modes. Application InformationOutput current, a011 -D-V-350..350mADimming Input, turn on threshold.. 5%Dimming Input, full on threshold..9V 5%External pot adjustment range..0%, 5-100%4 Output rise time..<2 ms5, 6 Output fall time ..<100 s5, 6 Quiescent current (DIM = 0V)..<6 mA6 Operating temperature (Tcase)..-40-+80 CStorage temperature..-40-+125 CFixed Current DriveFigure 10 shows a 700mA unit driving multiple LEDs.

6 Note that parallel strings of LEDs can be driven directlywith no additional circuitry required to insure current sharing. The nature of the LEDs themselves will providesu cient current sharing if the parallel strings comprise three or more junctions each, and are identical in length. 4 - Refer to gure 9 for the dimming - Tested at 24 Vin, 24 Vout6 - Actual value varies greatly based on input and/or output voltages. Actual values will be smaller in most cationsHigh Output Wide Range LED Power ModuleA011 FlexBlockTMDATA SHEET Page 4 of 9 When wired in the default con guration, as marked on the top of the unit, the FlexBlock is inBuck-Boost mode. This is the most exible mode as it allows the input voltage to be below, the same, orabove the output voltage. This mode is recommended for loads with up to 6 LEDs in the dimming wires (purple/gray) are left unconnected, the FlexBlock is designed to supply its ratedcurrent to one or more LED junctions.

7 For example, a 700mA rated unit will drive up to ve white 700mALEDs connected in series at 12 VDC. See gure 2 and gure second, more e cient wiring option puts the FlexBlock in boost-only mode. In this mode, theLED+ output is not used, and the positive end of the LED load is instead connected to Vin+. This is shown inFigure 11. It is extremely important that Vin < Vout under all conditions (LED forward voltages shrink slightlyas the LEDs warm up and as the LEDs are dimmed). If white LEDs are going to be dimmed, it is recommendedthat Vin be less than (2V * #LEDs in series) to make sure the LEDs can be fully extinguished. This is due to thefact that many LEDs will begin to light up at around , at a reduced current, even when rated at 2014 LUXdrive , A Division of LEDdynamics, Inc. cations subject to change without notice.

8 June, 2014 - Rev in the USALED dynamics, 14 and 15 show the ease of dimming the FlexBlockTM High Output LED Power Module. Figure 14 shows the simplest dimming con guration using a 20K Ohm potentiometer. This gives a 0%, 5-100%range of dimming. See gure 9. If multiple a011 modules are to be dimmed with a single potentiometer,the value of the potentiometer should be approximately (20K /N) where N is the number of Current - External Control - V ModelFigure vs. Dim input equivalent circuitFigure 15 shows a 0-10V wall dimmer, such as the LUXdrive A019 Low Voltage Dimming Control , beingused to control the LED brightness. This is the preferred choice for dimming multiple units, as the 0-10 Vdimming control can handle several drivers. The 0-10V input can also be supplied by a commercial lightingcontroller that has current-sinking 0-10V outputs, allowing the integration of LEDs with other forms oflighting in large automated large systems where several distant FlexBlock modules will be dimmed together, it is imporant to use aheavier gauge wire (such as 18 AWG) to run the DIM lines in a star wiring pattern (where each module has arun all the way back to the 0-10V dimming control).

9 This will help to negate any voltage drops along the DIMwires that could cause some lamps to dim di erently than more advanced control, the 0-10V input can be Pulse Width Modulated (PWM). Figure 18 shows howinterfacing with a microcontroller can easily be accomplished with a 2N3904 or equivalent transistor. A PWMfrequency of 200Hz is recommended. This con guration can also be used to strobe or pulse the LEDs with aTTL or CMOS logic addition to the con gurations described above, the FlexBlock may also be driven by a D to A D/A converter must be able to sink at least 1mA of current from the 0-10V input of the FlexBlock . If theD/A converter cannot sink current, a voltage follower with an open collector output should be used betweenthe D/A coverter and the 0-10V input. If the dimming control circuit used with the FlexBlock has the potential to exceed 10V, current into the DIMinput needs to be limited to 10mA or less.

10 See gure DimmingCircuitHigh Output Wide Range LED Power ModuleA011 FlexBlockTMDATA SHEET Page 5 of 9 2014 LUXdrive , A Division of LEDdynamics, Inc. cations subject to change without notice. June, 2014 - Rev in the USALED dynamics, a manual on/o control is desired, the potentiometer in Figure 14 may be replaced by apushbutton or toggle switch. The output current will be zero and the input current will drop to the quiescent level when the switch is closed. Figures 16 and 17 show external dimming control combinedwith on/o control. External On/O ControlThe FlexBlock can run many LED load con gurations with no additional heat sinking in an ambient of25 C. In situations with elevated ambient temperatures, such as those that might be experienced insidean enclosed xture, additional heat sinking may be required.