Table 3. Electrical and thermal characteristics for LUXEON T at 700mA, T
j
=85ºC .
Part numBer
LXH7-FWxx
LXH8-FWxx-x
LXH1-FWRB
ForWard VoltaGe (V)
[1]
mInImum
2.50
2.50
2.50
tyPIcal
2.80
2.80
2.80
maXImum
3.25
3.25
3.25
tyPIcal temPerature
coeFFIcIent oF ForWard
VoltaGe (mV/°c)
[2]
-1.60
-1.60
-1.60
tyPIcal tHermal
resIstance — JunctIon
to solder Pad (°c/W)
3.00
3.00
3.00
Notes for Table 3:
1.
Lumileds maintains a tolerance of ±0.06V on forward voltage measurements.
Absolute Maximum Ratings
Table 4. Absolute maximum ratings for LUXEON T, T
j
=85ºC .
Parameter
DC Forward Current
[1, 2]
Peak Pulsed Forward Current
[1, 3]
LED Junction Temperature
[1]
(DC & Pulse)
ESD Sensitivity (ANSI/ESDA/JEDEC JS-001-2012)
Operating Case Temperature
[1]
LED Storage Temperature
Soldering Temperature
Allowable Reflow Cycles
Reverse Voltage
[4, 5]
(V
reverse
)
maXImum PerFormance
1050mA
1200mA
150°C
Class B
-40°C to 135°C
-40°C to 135°C
JEDEC 020c 260°C
3
LUXEON LEDs are not designed to be driven in reverse bias
Notes for 4:
1.
Proper current derating must be observed to maintain junction temperature below the maximum. For additional information on thermal measurement guidelines please refer to Application
Brief AB106.
2.
Residual periodic variations due to power conversion from alternating current (AC) to direct current (DC), also called “ripple”, with frequencies ≥100 Hz and amplitude ≤150mA are acceptable,
assuming the average current throughout each cycle does not exceed the maximum allowable DC Forward Current at the corresponding maximum junction temperature.
3.
Pulsed operation with a peak drive current equal to the stated Peak Pulsed Forward Current is acceptable if the pulse on-time is ≤5ms per cycle and the duty cycle is ≤50%.
4.
Transient reverse voltages and surge currents due to electrical switching or supply interruptions are acceptable if these events do not last for more than 10ms, the amplitude of the reverse
voltage does not exceed 5V and the reverse current is less than 220uA.
5.
Max 5V reverse for up to 10s is an acceptable beginning of life, one time test condition.
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