PHP71NQ03LT Datasheet, PDF (4/14 Pages) NXP Semiconductors – TrenchMOS logic level FET

Philips Semiconductors
PHP/PHB/PHD71NQ03LT
TrenchMOS™ logic level FET
4. Thermal characteristics
Table 3: 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
vertical in still air
SOT428
SOT428 minimum footprint;
mounted on a PCB
SOT404 and SOT428
SOT404 minimum footprint;
mounted on a PCB
4.1 Transient thermal impedance
Min Typ Max Unit
- - 1.25 K/W
- 60 - K/W
- 75 - K/W
- 50 - K/W
10
Zth(j-mb)
(K/W)
1
δ = 0.5
0.2
0.1
10-1
0.05
0.02
10-2
10-5
single pulse
10-4
10-3
03ai75
P
δ=
tp
T
10-2
tp
t
T
tp (s)
10-1
Fig 4. Transient thermal impedance from junction to mounting base as a function of pulse duration.
9397 750 09821
Product data
Rev. 01 — 25 June 2002
© Koninklijke Philips Electronics N.V. 2002. All rights reserved.
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