Datasheet

NCR402U All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
Product data sheet Rev. 1 — 10 December 2013 5 of 15
NXP Semiconductors
NCR402U
20 mA LED driver
FR4 PCB, 4-layer copper, standard footprint
Fig 3. Transient thermal impedance from junction to ambient as a function of pulse duration; typical values
aaa-010055
10
-5
1010
-2
10
-4
10
2
10
-1
t
p
(s)
10
-3
10
3
1
10
2
10
10
3
Z
th(j-a)
(K/W)
1
0
0.01
0.02
0.05
0.1
0.2
0.33
0.5
0.75
duty cycle = 1