Transcript
PLED Open LED Protectors
PLED5 QFN Series
PLED5 QFN Series
RoHS
Description This PLED5 Open LED Protector device provides three methods for increasing the reliability of LED lighting: 1) If one of the LEDs in an array fails open, this device provides a substitute electronic path so that the array continues to function 2) It protects against ESD events up to ± 8 kV for contact discharges and ± 15 kV for air discharges per the IEC 61000-4-2 electrostatic immunity standard. 3) It provides protection in the case of accidental reverse battery or power connection. Schematic Symbol
High reliability of lighting functions such as traffic lighting, aircraft lighting, advertising lighting, and runway lighting demand the use of a device such as the PLED5.
MT1
Littelfuse offers over current devices for implementation in power circuits that can also enhance the reliability of circuit operation. Our full line of circuit protection products can be viewed at www.littelfuse.com.
Control Circuit
Features & Benefits • Reverse Battery/Power Protection
MT2
• Fast Switching
• Resets After Power Cycle • ESD, IEC 61000-4-2, ±8kV • Low Turn-On (Trigger contact, ±15 kV air Voltage) • Open LED bypass up to • Ideal for MR16, PAR type 500 mA lamps
Electrical Characteristics Symbol
Parameter
Conditions
VAK
Input Voltage
VTO
Turn-On Voltage
IS
Switching Current
VOS
On-State Voltage
IAK= 350 mA
IOS
On-State Current
(with adequate heat sinking)
VOSR
Reverse On-State Voltage
I = 350 mA
IOSR
Reverse On-State Current
IDRM
Leakage Current
VESD
ESD Withstand Voltage1
MIN
4.65
TYP
4.9
1
1
MAX
Unit
40
V
5.15
V
20
mA
1.3
V
500
mA
1.4
V
500
mA
150
μA
VAK = 3.5 V
100
IEC61000-4-2 (Contact)
±8
kV
IEC61000-4-2 (Air)
± 15
kV
Notes: 1
Parameter is guaranteed by design and/or device characterization.
©2010 Littelfuse, Inc.
15
Specifications are subject to change without notice. Revision: June 23, 2010
PLED5 QFN Series
PLED Open LED Protectors
PLED5 QFN Series
Thermal Considerations Package
QFN
Symbol
Parameter
Value
Unit
TOP
Operating Temperature
-40 to 85
ºC
TJ
Maximum Junction Temperature
150
ºC
TSTOR
Storage Temperature
-65 to 150
ºC
V-I Characteristics
Switching Current vs Temperature +IAK IS, SWITCHING CURRENT (mA)
5
0.5A
-VAK
-1v 5.0 v
1.0 v
+VAK
4
3
2
1
0
-0.5A
-90
-40
0
60
110
160
TA, AMBIENT TEMPERATURE (ºC)
-IAK
Holding Current vs Temperature
LED Application and Interference Test Circuit Q1
5
VTO, TURN-ON VOLTAGE (V)
10
2.0
LED Driver
Ω, 1/4 W
MT1
PLED5HT
Control Circuit
4.9 110 kΩ, 1/4 W
MT2 MT1
+
4.8
-
Vbat 12 Vdc
Q2 2N2222
PLED5HT
Control Circuit
MT2
PWM
4.7
MT1 Control Circuit
PLED5HT MT2
4.6 -90
-40
0
10
60
110
160
TA, AMBIENT TEMPERATURE (ºC)
©2010 Littelfuse, Inc.
16
Specifications are subject to change without notice. Revision: June 23, 2010
PLED5 QFN Series
PLED Open LED Protectors
PLED5 QFN Series
Leakage Current vs Temperature
Package Dimensions
2.00 ± 0.100
IDRM, LEAKAGE CURRENT (µA)
120
0.200
2.00 ± 0.100 Top View Units: mm
80 60 40
20 0
1.680
0.050
100
-50
MT2
1.300
1.020 0.280
0.400 ± 0.050
MT1
0
50
100
150
TA, AMBIENT TEMPERATURE (ºC)
Ordering Information Catalog Number
Package Type
Quantity Per Reel
PLED5Q12
QFN
3000 Pieces
0.050 ± 0.040 0.850 ± 0.050
Bottom View
©2010 Littelfuse, Inc.
17
Specifications are subject to change without notice. Revision: June 23, 2010
PLED5 QFN Series
