Philips Semiconductors

BUK9225-55A

TrenchMOS™ logic level FET

Product specification

Rev. 01 — 17 April 2001

4 of 13

9397 750 08134

© Philips Electronics N.V. 2001. All rights reserved.

7.

Thermal characteristics

7.1 Transient thermal impedance

Table 4:

Thermal characteristics

Symbol

Parameter

Conditions

Value

Unit

thermal resistance from junction to ambient

71.4

K/W

thermal resistance from junction to mounting

base

Figure 4

1.6

K/W

Fig 4.

Transient thermal impedance from junction to mounting base as a function of pulse duration.

03ne71

Single Shot

0.2

0.1

0.05

0.02

10-2

10-1

1

10

10-6

10-5

10-4

10-3

10-2

10-1

1

tp (s)

Zth(j-mb)

(K/W)

δ = 0.5

tp

tp

T

P

t

T