Pled open led protectors, Pled series – Littelfuse PLED Series User Manual
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2
PLED Open LED Protectors
Revision: June 16, 2011
©2011 Littelfuse, Inc.
Specifications are subject to change without notice.
PLED Series
PLED Series
Package
Symbol
Parameter
Value
Unit
QFN 3x3
DO-214
T
J
0QFSBUJOH+VODUJPO5FNQFSBUVSF3BOHF
-40 to +150
°C
T
S
4UPSBHF5FNQFSBUVSF3BOHF
-65 to +150
°C
3
șJA
5IFSNBM3FTJTUBODF+VODUJPOUP"NCJFOU
%0
1
%0
2
2'/
1
2'/
3
°C/
8
Thermal Considerations
I
H
I
T
I
S
V
DRM
V
T
+V
-V
+I
-I
V
BR
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 (T
C
) – ˚C
fo
oit
a
R
i
H
i
H
T(
C
C˚
52
=)
25 ˚C
0 20 40 60 80 100 120 140 160
ON/OFF
Switch
PWM
LED
Driver
V
bat
12 Vdc
+
-
2.0
Ω, 1/4 W
110 k
Ω, 1/4 W
Q2
2N2222
Q1
Control
Circuit
MT
2
MT
1
PLED
-8
-40 -20
-6
-4
0
2
4
6
8
10
12
14
Junction Temperature (T
J
) – ˚C
re
P
f
o t
ne
cV
BR
–
e
gn
ah
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
/PUFT
4UBOEBSE'31$#XJUI$PQQFS1BET 3FDPNNFOEFE4J[F
"MVNJOVN1$#
5IJDLOFTTNN
(SBEF8N,5IFSNBM$POEVDUJWJUZ
5SBDFUIJDLOFTTP[
*OTVMBUJPOMBZFSUIJDLOFTTVN
4PMEFS1BE%JNFOTJPOT
NNYNN 3FDPNNFOEFE4J[F
"MVNJOVN1$#
5IJDLOFTTNN
(SBEF8N,5IFSNBM$POEVDUJWJUZ
5SBDFUIJDLOFTTP[
*OTVMBUJPOMBZFSUIJDLOFTTVN
4PMEFS1BE%JNFOTJPOT
NNYNN 3FDPNNFOEFE4J[F