PLED open led protectors revision: 09/25/15 ?2015 littelfuse, inc. specifcations are subject to change without notice. PLED unidirectional series description PLED unidirectional series (PLEDxxux series) open led protectors provide a switching electronic shunt path around a single led that fails as an open circuit. this ensures the remaining string of leds will continue to function even though a single led in the string has failed open. it also provides reverse battery or reverse power polarity protection. PLED unidirectional series devices were designed to enable higher reliability in outdoor led lighting applications such as street lighting, outdoor signage, aircraft runway lighting, roadside warning lights and other applications. compatible with one, two and three watt leds that have a nominal 3v forward characteristic, PLED unidirectional series devices are available in two surface mount packages, the do-214aa and the quad flat pak no-lead (qfn). the qfns low profle, chip scale package (csp) is ideal for dense board applications. electrical characteristics (all parameters are measured at t=25c unless otherwise noted) part number marking v br breakdown v drm breakdown i h i s i t @v t v t i f @v f v f i o 1 critical rate of rise dv/dt volts volts mamps mamps amps volts amps volts amps volts min max min max max max max max max min max PLED6uq12 pl6u 6 16 6 30 50 1. 0 1. 2 1. 0 1. 0 1. 0 250v/s PLED6us pl6u 6 16 6 30 50 1. 0 1. 2 1. 0 1. 0 1. 0 PLED9uq12 pl9u 9 18 9 30 50 1. 0 1. 2 1. 0 1. 0 1. 0 PLED9us pl9u 9 18 9 30 50 1. 0 1. 2 1. 0 1. 0 1. 0 PLED13uq12 pl13u 13 26 13 30 50 1. 0 1. 2 1. 0 1. 0 1. 0 PLED13us pl13u 13 26 13 30 50 1. 0 1. 2 1. 0 1. 0 1. 0 PLED18uq12 pl18u 18 33 18 30 50 1. 0 1. 2 1. 0 1. 0 1. 0 PLED18us pl18u 18 33 18 30 50 1. 0 1. 2 1. 0 1. 0 1. 0 PLED35us* pl35u 35 50 35 30 50 1. 0 1. 2 1. 0 1. 0 1. 0 features & benefts ? fast switching ? reverse battery/power protection ? automatically resets after power cycle ? available in low profle, small footprint qfn and standard do214aa packages ? compatible with industrial lighting environments ? compatible with pwm frequencies up to 10 khz ? rohs compliant and halogen-free agency approvals agency agency file number e133083 schematic symbol control circuit mt 2 mt1 cathode (bar marking side) PLED unidirectional series (PLEDxxux) note: 1. i o - operation current tested @ alumium boards, ambient temp 85c 2. part with * is not a ul recognized part rohs
PLED open led protectors revision: 09/25/15 ?2015 littelfuse, inc. specifcations are subject to change without notice. PLED unidirectional series package symbol parameter value unit qfn 3x3 d o-21 4aa t j operating junction temperature range -40 to +150 c t s storage temperature range -65 to +150 c r ja thermal resistance: junction to ambient do-214aa: 90 1 do-214aa: 40 2 qfn: 120 1 qfn: 60 3 c/ w thermal considerations i h i t i s v drm v t +v -v +i -i v br i t v f v-i characteristics 0.4 -40 -20 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 case t emperature (t c ) ? ?c f o o i t a r i h i h t ( c c ? 5 2 =) 25 ?c 0 20 40 60 80 100 120 140 160 on/off switc h pwm led dri ver v bat 12 vdc + - 2.0 , 1/4 w 11 0 k , 1/4 w q2 2n2222 q1 unidiretional PLED control circuit mt 2 mt1 -8 -40 -20 -6 -4 0 2 4 6 8 10 12 14 junction temperature (t j ) ? ?c r e p f o t n e cv br ? e g n a h c% 25 ?c 0 20 40 60 80 100 120 140 160 v br vs. junction temperature normalized dc holding current vs. case temperature led interference test circuit notes: 1) standard fr-4 pcb with copper pads (recommended size) 2) aluminum pcb thickness: 1.6mm grade: 1-2 w/mk thermal conductivity trace thickness: 2 oz insulation layer thickness: 215 m solder pad dimensions: 2.0mm x 2.8mm (recommended size) 3) aluminum pcb thickness: 1.6mm grade: 1-2 w/mk thermal conductivity trace thickness: 2 oz insulation layer thickness: 60 m solder pad dimensions: 1.27mm x 2.54mm (recommended size)
PLED open led protectors revision: 09/25/15 ?2015 littelfuse, inc. specifcations are subject to change without notice. PLED unidirectional series 6 leds in series 50% duty cycle 10khz 5 leds and 1 PLED in series 50% duty cycle 10khz PLED in the off-state 10khz PLED device zeners and then turns fully on 10khz channel 1: current through leds (318 ma) channel 2: voltage across PLED device (4.5 v) channel 1: current through leds (346 ma) and PLED device once it is fully turned on 2.5 sec later channel 2: voltage across PLED device (21.3 v before PLED crowbars with 2 v drop) note: these two graphs show the current magnitude through the led string with and without the PLED included. there is no noticeable effect on the led current magnitude when the PLED is included in the circuit as compared to the led current magnitude when the PLED is not in the circuit. (the conversion factor for the test measurement in the graphs above is 10ma/mv for the pearson coil measurement, therefore, the current magnitude in the frst fgure is 10ma*8.9 = 89ma, while the second fgure is 91ma.)
PLED open led protectors revision: 09/25/15 ?2015 littelfuse, inc. specifcations are subject to change without notice. PLED unidirectional series soldering parameters refow condition pb C free assembly pre heat - temperature min (t s(min) ) 150c - temperature max (t s(max) ) 200c - time (min to max) (t s ) 60 C 180 secs average ramp up rate (liquidus temp (t l ) to peak 3c/second max t s(max) to t l - ramp-up rate 3c/second max refow - temperature (t l ) (liquidus) 217c - temperature (t l ) 60 C 150 seconds peak temperature (t p ) 260 +0/-5 c time within 5c of actual peak temperature (t p ) 30 seconds ramp-down rate 6c/second max time 25c to peak temperature (t p ) 8 minutes max do not exceed 260c physical specifcations environmental specifcations high temperature voltage blocking mil-std-750: method 1040, condition a 80% min v drm (vac-peak), 150c, 504 hours temperature cycling mil-std-750: method 1051 -65c to 150c, 15-minute dwell, 100 cycles biased temperature & humidity eia/jedec: jesd22-a101 52vdc, 85c, 85%rh, 1008 hours high temperature storage mil-std-750: method 1031 150c, 1008 hours low temperature storage -65c, 1008 hours thermal shock mil-std-750: method 1056 0c to 100c, 5-minute dwell, 10-second transfer, 10 cycles resistance to solder heat mil-std-750: method 2031 260c, 10 seconds terminal material copper alloy terminal finish 100% matte tin plated body material ul recognized epoxy meeting fammability classifcation 94v-0 part marking system plxu xxxxx cathode bar to indicate diode direction do-21 4aa plxu xxxxx qfn cathode bar to indicate diode direction part numbering system PLED x type PLED: led protector v 6 volts 9 volts 13 volts 18 volts 35 volts package type q12: 3.0x3.0mm qfn s: do-214aa drm u unidirectional x
PLED open led protectors revision: 09/25/15 ?2015 littelfuse, inc. specifcations are subject to change without notice. PLED unidirectional series dimensions - qfn (3x3) package dimensions - do-214 aa package 2.54mm 0.100? 1.50mm 0.059? 1.27mm 0.050? recommended solder pad layout (reference only) h k1 n2 n1 end view side view m2 m2 m1 m1 k2 f e c j b a top view bottom view b d a c h g k f case temperature measuring point 0.079" (2.0mm ) 0.079" (2.0mm ) 0.110" (2.8mm) e r ecommended solder pad layout (r eference only) dimensions inches millimeters min ty p max min ty p max a 0.114 0.118 0.122 2.900 3.000 3.100 b 0.114 0.118 0.122 2.900 3.000 3.100 c 0.075 0.079 0.083 1.900 2.000 2.100 e 0.011 0.015 0.019 0.285 0.385 0.485 f 0.076 0.080 0.084 1.930 2.030 2.130 h 0.035 0.039 0.043 0.900 1.000 1. 10 0 j 0.000 0.004 0.008 0.000 0.100 0.200 k1 0.004 0.008 0.012 0.100 0.200 0.300 k2 0.004 0.008 0.012 0.100 0.200 0.300 m1 0.056 0.060 0.064 1.143 1.530 1.630 m2 0.038 0.042 0.046 0.970 1.070 1.170 n1 0.096 0.100 0.104 2.440 2.540 2.640 n2 0.082 0.086 0.090 2.080 2.180 2.280 dimensions inches millimeters min max min max a 0.130 0.156 3.30 3.95 b 0.201 0.220 5.10 5.60 c 0.077 0.087 1.95 2.20 d 0.159 0.181 4.05 4.60 e 0.030 0.063 0.75 1.60 f 0.075 0.096 1.90 2.45 g 0.002 0.008 0.05 0.20 h 0.077 0.104 1.95 2.65 k 0.006 0.016 0.15 0.41 packaging package description packaging quantity industry standard q12 qfn 3x3 5000 eia-481-1 s do-214aa 2500 eia-481-1
PLED open led protectors revision: 09/25/15 ?2015 littelfuse, inc. specifcations are subject to change without notice. PLED unidirectional series tape and reel specifcation - qfn (3x3) a b d c w1 n reel dimension k 0 p 0 p 1 w d 0 a 1 d 1 p 2 e 2 f w 0 carri er tape co ve r ta pe t e 1 b 0 tape dimension item s tr ai le r 160mm mi n le ad er 400m m mi n start en d carri er tape co ve r ta pe leader and trailer dimension of the ttap e cathode bar on this side symbols description inches millimeters minimum maximum minimum maximum a reel diameter n/a 12.992 n/a 330.0 b drive spoke width 0.059 n/a 1.50 n/a c arbor hole diameter 0.504 0.531 12.80 13.50 d drive spoke diameter 0.795 n/a 20.20 n/a n hub diameter 1.969 n/a 50.00 n/a w1 reel inner width at hub 0.488 0.567 12.40 14.40 a0 pocket width at bottom 0.126 0.134 3.20 3.40 b0 pocket length at bottom 0.126 0.134 3.20 3.40 d0 feed hole diameter 0.059 0.063 1.50 1.60 d1 pocket hole diameter 0.059 n/a 1.50 n/a e1 feed hole position 1 0.065 0.073 1.65 1.85 e2 feed hole position 2 0.400 0.408 10.15 10.35 f feed hole center-pocket hole 0.215 0.219 5.45 5.55 k0 pocket depth 0.039 0.051 1. 0 0 1.30 p0 feed hole pitch 0.153 0.161 3.90 4.10 p1 component spacing 0.311 0.319 7.90 8.10 p2 feed hole center-pocket hole 0.077 0.081 1.90 2.06 t carrier tape thickness 0.010 0.014 0.25 0.35 w embossed carrier tape width 0.453 0.484 11.50 12.30 w0 cover tape width 0.358 0.366 9.10 9.30 do-214aa embossed carrier reel pack (rp) meets all eia-481-1 standards 0.472 (12.0) 0.36 (9.2) 0.315 (8.0) 0.157 (4.0) 0.49 (12.4) 0.512 (13.0) arbor hole dia . 12.99 (330.0) dimensions are in inches (and millimeters). direction of feed 0.059 dia (1.5) cover tape cathode bar on this side
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