PHP29N08T Datasheet, PDF (4/13 Pages) NXP Semiconductors – TrenchMO standard level FET

Philips Semiconductors
PHP/PHB29N08T
TrenchMOS™ standard level FET
7. Thermal characteristics
Table 4: Thermal characteristics
Symbol Parameter
Conditions
R_th(j-mb)
R_th(j-a)
thermal resistance from junction to mounting base Figure 4
thermal resistance from junction to ambient
SOT78 package; vertical in still air
SOT404 package;
SOT404 minimum footprint;
mounted on a PCB
7.1 Transient thermal impedance
Min Typ Max Unit
- - 1.7 K/W
- 60 - K/W
- 50 - K/W
10
Zth(j-mb)
(K/W)
1 _{δ = 0.5}
0.2
0.1
0.05
10-1 0.02
single pulse
10-2
10-5
10-4
10-3
03aj05
P
δ=
tp
T
10-2
tp
T
tp (s)
t
10-1
Fig 4. Transient thermal impedance from junction to mounting base as a function of pulse duration.
9397 750 09651
Product data
Rev. 01 — 29 May 2002
© Koninklijke Philips Electronics N.V. 2002. All rights reserved.
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