HAT3008R, HAT3008RJ

Preliminary

REJ03G1198-0500 Rev.5.00 Aug 25, 2009

Page 10 of 11

Common

Pulse Width PW (S)

Normalized Transient Thermal Impedance vs. Pulse Width (1 Drive Operation)

10

μ

100

μ

1 m10 m

100 m

1

10

100

1000

10000

10

1

0.1

0.01

0.001

0.0001

D = 1

0.5

0.2

0.1

0.05

0.02

0.01

1shot

pu

lse

PW

T

D =

PW

T

θch – f (t) = γ s (t) • θch – f

θch – f = 125°C/W, Ta = 25°C

When using the glass epoxy board

(FR4 40

× 40 × 1.6 mm)

Pulse Width PW (S)

Normalized Transient Thermal Impedance vs. Pulse Width (2 Drive Operation)

10

μ

100

μ

1 m10 m

100 m

1

10

100

1000

10000

10

1

0.1

0.01

0.001

0.0001

D = 1

0.5

0.2

0.1

0.05

0.02

0.01

1shot

pu

lse

PW

T

D =

PW

T

θch – f (t) = γ s (t) • θch – f

θch – f = 166°C/W, Ta = 25°C

When using the glass epoxy board

(FR4 40

× 40 × 1.6 mm)