LUXEON K2 Datasheet DS51 (7/07)

8

Electrical Characteristics

Electrical Characteristics at 350mA

Table 4.

T

Ty

yp

piic

ca

all T

Te

em

mp

pe

erra

attu

urre

e

T

Ty

yp

piic

ca

all

T

Ty

yp

piic

ca

all

C

Co

oe

effffiic

ciie

en

ntt o

off

T

Th

he

errm

ma

all

D

Dy

yn

na

am

miic

c

F

Fo

orrw

wa

arrd

d

R

Re

es

siis

stta

an

nc

ce

e

F

Fo

orrw

wa

arrd

d V

Vo

olltta

ag

ge

e V

R

Re

es

siis

stta

an

nc

ce

V

Vo

olltta

ag

ge

J

Ju

un

nc

cttiio

on

n tto

o

((V

V))

((Ω

Ω))

((m

mV

C))

C

Ca

as

se

C//W

W))

C

Co

ollo

orr

M

Miin

n..

T

Ty

yp

p..

M

Ma

ax

x..

R

R

D

D

ΔΔVV

F

/

ΔΔTT

J

J

R

R

θθ

J

J C

C

CoolWhite

[4]

2.79

3.42

4.23

1.0

2.0

9 (13 for Star)

NeutralWhite

[4]

2.79

3.42

4.23

1.0

2.0

9 (13 for Star)

WarmWhite

[4]

2.79

3.42

4.23

1.0

2.0

9 (13 for Star)

Green

[4]

2.79

3.42

4.23

1.0

2.0

9

Cyan

[4]

2.79

3.42

4.23

1.0

2.0

9

Blue

[4]

2.79

3.42

4.23

1.0

2.0

9

Royal Blue

[4]

2.79

3.42

4.23

1.0

2.0

9

Red

2.31

2.95

3.51

2.4

2.0

12

RedOrange

2.31

2.95

3.51

2.4

2.0

12

Amber

2.31

2.95

3.51

2.4

2.0

12

Notes for Table 4:

1.

Philips Lumileds maintains a tolerance of ±0.06V on forward voltage measurements.

2.

Dynamic resistance is the inverse of the slope in linear forward voltage model for LEDs. See figures 14 and 15.

3.

4.

The forward voltage of the LUXEON K2 LED will reduce by up to 0.30V at 350mA during the first few hours of operation

after SMT reflow. Due to this effect, Philips Lumileds recommends current source drive for consistent and reliable perform

ance. Cross connected series/parallel arrays or voltage drivers which could result in current hogging or variation in drive

current are not recommended. Please consult your Philips Lumileds authorized distributor or Philips Lumileds Sales

Representative for further information.