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Revision: 09/25/15 ©2015 Littelfuse, Inc. Specifications 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 QFN’s low profile, chip scale package (CSP) is ideal for dense board applications. Electrical Characteristics (All parameters are measured at T=25°C unless otherwise noted) Part Number Marking VBR breakdown VDRM breakdown IH IS IT@VT VT IF@VF VF IO

1 Critical rate of

Volts Volts mAmps mAmps Amps Volts Amps Volts Amps Volts Min Max Min Max Max Max Max Max Max Min Max 250V/µs Features & Benefits

  • Fast switching
  • Reverse Battery/Power Protection
  • Automatically resets after power cycle
  • Available in low profile, 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 MT2 MT1 Cathode (bar marking side) PLED Unidirectional Series (PLEDxxUx) note: 1. IO- Operation current tested @ alumium boards, ambient temp 85C 2. Part with “*” is not a UL Recognized Part RoHS

Revision: 09/25/15 ©2015 Littelfuse, Inc. Specifications are subject to change without notice. PLED Unidirectional Series Package Symbol Parameter Value Unit QFN 3x3 DO-214AA TJ Operating Junction Temperature Range -40 to +150 °C TS Storage Temperature Range -65 to +150 °C RθJA Thermal Resistance: Junction to Ambient DO-214AA: 901 DO-214AA: 402 QFN: 120 1 QFN: 60 3 °C/W Thermal Considerations IH IT IS VDRMVT +V-V VBR IT VF V-I Characteristics 0.4 -40 -20 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Case Temperature (TC ) – ˚C fo oitaR iH iH T( C C˚ 52 =) 25 ˚C 0 20 40 60 80 100 120 140 160 ON/OFF Switch PWM LED Driver Vbat

12 Vdc

2.0 /uni03A9, 1/4 W 110 k/uni03A9, 1/4 W 2N2222 Unidiretional PLED Control Circuit MT2 MT1 -40 -20 Junction Temperature (TJ ) – ˚C reP fo tnecV BR – egnahC% 25 ˚C 0 20 40 60 80 100 120 140 160 VBR vs. Junction T emperature Normalized DC Holding Current vs. Case T emperature LED Interference T est 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 µm 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 µm Solder Pad Dimensions: 1 .27mm x 2.54mm (Recommended Size)

Revision: 09/25/15 ©2015 Littelfuse, Inc. Specifications 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 μsec 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 first figure is 10mA*8.9 = 89mA, while the second figure is 91mA.)

Revision: 09/25/15 ©2015 Littelfuse, Inc. Specifications are subject to change without notice. PLED Unidirectional Series Soldering Parameters Reflow Condition Pb – Free assembly Pre Heat - Temperature Min (Ts(min)) 150°C - Temperature Max (Ts(max)) 200°C - Time (min to max) (ts) 60 – 180 secs Average ramp up rate (Liquidus Temp (TL) to peak 3°C/second max TS(max) to TL - Ramp-up Rate 3°C/second max Reflow - Temperature (TL) (Liquidus) 217°C - Temperature (tL) 60 – 150 seconds Peak Temperature (TP) 260+0/-5 °C Time within 5°C of actual peak Temperature (t p) 30 seconds Ramp-down Rate 6°C/second max Time 25°C to peak Temperature (TP) 8 minutes max Do not exceed 260°C Physical Specifications Environmental Specifications High T emperature Voltage Blocking MIL -STD-750: Method 1040, Condition A 80% min V DRM (VAC-peak), 150°C, 504 hours T emperature Cycling MIL -STD-750: Method 1051 -65°C to 150°C, 15-minute dwell, 100 cycles Biased T emperature & Humidity EIA/JEDEC: JESD22-A101 52VDC, 85°C, 85%RH, 1008 hours High T emperature Storage MIL -STD-750: Method 1031 150°C, 1008 hours Low T emperature Storage -65°C, 1008 hours Thermal Shock MIL -STD-750: Method 1056 0°C to 100°C, 5-minute dwell, 10-second transfer, 10 cycles Resistance to Solder Heat MIL -STD-750: Method 2031 260°C, 10 seconds T erminal Material Copper Alloy T erminal Finish 100% Matte Tin Plated Body Material UL recognized epoxy meeting flammability classification 94V-0 Part Marking System PLxU XXXXX Cathode Bar to Indicate Diode Direction DO-214AA 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

Q12: 3.0x3.0mm QFN S: DO-214AA DRM U Unidirectional x

Revision: 09/25/15 ©2015 Littelfuse, Inc. Specifications 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 END VIEW SIDE VIEW M2 M2 M1M1 F E C J B A TOP VIEW BOTTOM VIEW B D AC H G K F CASE TEMPERATURE MEASURING POINT 0.079" (2.0mm) 0.079" (2.0mm) 0.110" (2.8mm) E Recommended solder pad layout (Reference Only) Dimensions Inches Millimeters Min Typ Max Min Typ Max 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-214A A 2500 EIA-481-1

Revision: 09/25/15 ©2015 Littelfuse, Inc. Specifications are subject to change without notice. PLED Unidirectional Series T ape and Reel Specification - QFN (3x3) A B D C N Reel Dimension W D1P2 F CARRIER TAPE COVER TAPE T Tape Dimension Items TRAILER 160mm MIN LEADER 400mm MIN STARTEND CARRIER TAPE COVER TAPE Leader and Trailer Dimension of the Ttape 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