PLED18US-A [LITTELFUSE]
Silicon Surge Protector,;
| 型号： | PLED18US-A |
| 厂家： | 
LITTELFUSE |
| 描述： | Silicon Surge Protector, |
| 文件： | 总5页 (文件大小：874K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PLED Open LED Protectors
Automotive PLED Unidirectional Series
RoHS
Automotive PLED Unidirectional Series (PLEDxUx-A)
Description
Automotive PLED Unidirectional Series (PLEDxUx-A) 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.
This series is designed for automotive applications such
as automotive car head lamp, tail lamp, LED indicator
protection, aircraft runway lighting and other applications
need high reliability requirements.
Compatible with one, two and three watt LEDs that have a
nominal 3V forward characteristic.
Agency Approvals
Agency
Agency File Number
E133083
Features & Benefits
Schematic Symbol
• AEC−Q101 Qualified and
PPAP Capable
• Compatible with industrial
lighting environments
MT2
• Fast switching
• IEC-61000-4-2 ESD 30kV
(Air), 30kV (Contact)
Cathode
(bar marking side)
• Reverse Battery/Power
Protection
• ESD protection of data
lines in accordance with
IEC 61000-4-2 (IEC801-2)
Control
Circuit
• Automatically resets after
power cycle
• Compatible with PWM
frequencies up to 10 kHz
• Available in standard DO-
214AA package
MT1
• RoHS compliant and
halogen-free
Electrical Characteristics (All parameters are measured atTA=25°C unless otherwise noted)
VDRM
VS
Critical rate
of rise dV/dt
1
IH
IS
IT@VT
VT
IF@VF
VF
IO
@lDRM=5μA @100V/μs
Part Number
Marking
Volts
Volts
mAmps
mAmps
Amps Volts Amps
Volts Amps
Volts
Min
6
Max
27
Max
30
Max
50
Max
1.0
Max
1.2
Max
1.0
Max
1.0
Min
1.0
1.0
1.0
1.0
1.0
Max
PLED6US-A
PLED9US-A
PLED13US-A
PLED18US-A
PLED35US-A
AL6U
AL9U
250V/µs
250V/µs
250V/µs
250V/µs
250V/µs
9
30
30
50
1.0
1.2
1.0
1.0
AL13U
AL18U
AL35U
13
18
35
44
30
50
1.0
1.2
1.0
1.0
55
30
50
1.0
1.2
1.0
1.0
83
30
50
1.0
1.2
1.0
1.0
note:
1. IO- Operation current tested @ aluminium boards, ambient temp 85°C
©2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 07/22/19
PLED Open LED Protectors
Automotive PLED Unidirectional Series
Thermal Considerations
Symbol
Parameter
Value
Unit
TJ
TS
Operating Junction Temperature Range
Storage Temperature Range
-55 to +150
°C
-65 to +150
°C
DO-214AA: 1251
DO-214AA: 402
RθJA
Thermal Resistance: Junction to Ambient
°C/W
Notes:
1) Standard FR-4 PCB with Copper Pads (Recommended Size)
2) Aluminium PCB
Thickness: 1.6mm
Grade: 1-2 W/mKThermal Conductivity
Trace thickness: 2 oz
Insulation layer thickness: 215 µm
Solder Pad Dimensions:
2.0mm x 2.8mm (Recommended Size)
V-I Characteristics
Normalized DC Holding Current vs. CaseTemperature
+I
1.8
1.6
VF
1.4
25濎
VDRM
1.2
1
VS
VT
-V
+V
IDRM
0.8
0.6
0.4
IH
IS
IT
-55
-25
5
35
65
95
125
155
Case Temperature (TC) –濎
-I
NormalizedVS Change vs. JunctionTemperature
LED InterferenceTest Circuit
Q1
22
16
LED
Driver
2.0 Ω, 1/4 W
110 kΩ, 1/4 W
10
25°C
+
V
bat
4
-2
Q2
2N2222
12 Vdc
-
PWM
MT2
Control
Circuit
Unidiretional
PLED
-8
ON/OFF
Switch
MT1
-14
-55
-25
5
35
65
95
125
155
Junction Temperature (TJ) –濎
©2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 07/19/19
PLED Open LED Protectors
Automotive PLED Unidirectional Series
6 LEDs in Series 50% Duty Cycle 10kHz
5 LEDs and 1 PLED in Series 50% Duty Cycle 10kHz
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.)
PLED in the Off-State 10kHz
PLED component zeners and then turns fully on 10kHz
Channel 1: current through LEDs (318 mA)
Channel 2: voltage across PLED component (4.5 V)
Channel 1: current through LEDs (346 mA) and PLED component once it is fully turned on 2.5 μsec later
Channel 2: voltage across PLED component (21.3 V before PLED crowbars with 2 V drop)
©2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 07/19/19
PLED Open LED Protectors
Automotive PLED Unidirectional Series
Soldering Parameters
Reflow Condition
Pb – Free assembly
150°C
-Temperature Min (Ts(min)
)
Pre Heat -Temperature Max (Ts(max)
)
200°C
-Time (min to max) (ts)
60 – 180 secs
Average ramp up rate (LiquidusTemp
(TL) to peak
3°C/second max
TS(max) toTL - Ramp-up Rate
3°C/second max
217°C
-Temperature (TL) (Liquidus)
Reflow
-Temperature (tL)
60 – 150 seconds
260+0/-5 °C
PeakTemperature (TP)
Time within 5°C of actual peak
Temperature (tp)
30 seconds
Ramp-down Rate
6°C/second max
Environmental Specifications
Time 25°C to peakTemperature (TP)
Do not exceed
8 minutes max
260°C
80% Rated VDRM (VDC Peak) +150°C, 1008
hrs. MIL-STD-750 (Method 1040) JEDEC,
JESD22-A-101
HighTempVoltage
Blocking
-55°C to +150°C, 15 min. dwell, 1000 cycles.
MIL-STD-750 (Method 1051) EIA/JEDEC,
JESD22-A104
Temp Cycling
Physical Specifications
80% Rated VDRM (+85°C) 85%RH, 504 up to
1008 hrs. EIA/JEDEC, JESD22-A-101
BiasedTemp &
Humidity
Terminal Material
Terminal Finish
Copper Alloy
Unbiased Highly
Accelerated StressTest
+130°C,85%RH,2atm,96hrs.JESD22A-118
100% MatteTin Plated
UL recognized compound meeting
flammability classification V-0
Resistance to Solder
Heat
Body Material
+260°C, 10 secs. MIL-STD-750 (Method 2031)
Moisture Sensitivity
Level
85%RH, +85°C, 168 hrs., 3 reflow cycles
(+260°C Peak). JEDEC-J-STD-020, Level 1
Part Numbering System
Part Marking System
U S -A
PLED x
Part Marking Code
Axxxx
(Refer to Electrical Characteristics Table)
Automotive PLED
PACKAGE TYPE
S: DO-214AA
TYPE
PLED: LED Protector
Date Code
YMXXX
Y:Year Code
M:Month Code
XXX:Lot Code
V
DRM
6 Volts
9 Volts
Unidirectional
13 Volts
18 Volts
35 Volts
©2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 07/19/19
PLED Open LED Protectors
Automotive PLED Unidirectional Series
Packaging
Package
Description
Packaging Quantity
Industry Standard
S
DO-214AA
2500
EIA-481-1
Dimensions - DO-214 AA Package
B
CASE TEMPERATURE
MEASURING POINT
Inches
Millimeters
D
Dimensions
Min
Max
Min
Max
A
B
C
D
E
F
0.130
0.156
3.30
3.95
5.60
2.20
4.60
1.60
2.45
0.20
2.65
0.41
A
C
0.201
0.077
0.159
0.030
0.075
0.002
0.077
0.006
0.220
0.087
0.181
0.063
0.096
0.008
0.104
0.016
5.10
1.95
4.05
0.75
1.90
0.05
1.95
0.15
K
H
F
E
G
G
H
K
0.079"
(2.0mm)
0.110"
(2.8mm)
0.079"
(2.0mm)
Recommended solder pad layout
(Reference Only)
DO-214AA Embossed Carrier Reel Pack (RP)
Meets all EIA-481-1 Standards
0.157
(4.0)
Cathode bar on this side
0.472
(12.0)
0.36
(9.2)
0.315
(8.0)
0.059
(1.5)
Cover tape
DIA
12.99
(330.0)
0.512 (13.0) Arbor
Hole Dia.
Dimensions
are in inches
(and millimeters).
0.49
(12.4)
Direction of Feed
Disclaimer Noꢀce - Informaꢀon furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applicaꢀons. Liꢁelfuse products are not designed for, and may not be used in, all applicaꢀons.
Read complete Disclaimer Noꢀce at hꢁp://www.liꢁelfuse.com/disclaimer-electronics.
©2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revision: 07/19/19
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