Diodes B320A - B360A - Manual (Page 4)

B320A - B360A
Document number: DS30891 Rev. 13 - 2
4 of 6
www.diodes.com
February 2014
© Diodes Incorporated
B320A - B360A
t1, PULSE DURATION TIME (sec)
Fig 9 Transient Thermal Resistance
B320A-B340A
r(t
), T
R
ANSI
E
N
T T
H
E
R
MA
L
R
ESI
S
TAN
C
E
D = 0.5
D = 0.7
D = 0.9
D = 0.3
D = 0.1
D = 0.05
D = 0.02
D = 0.01
D = 0.005
D = Single Pulse
R (t) = r(t) * R
R = 140°C/W
Duty Cycle, D = t1/ t2
θ θ
θ
JA JA
JA
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10 100 1000 10000
P(pk)
t
1
t
2
Note 7
t1, PULSE DURATION TIME (sec)
Fig 10 Transient Thermal Resistance
B350A-B360A
r(t),
T
R
ANSI
E
N
T T
H
E
R
MA
L
R
E
S
IST
AN
C
E
D = 0.5
D = 0.7
D = 0.9
D = 0.3
D = 0.1
D = 0.05
D = 0.02
D = 0.01
D = 0.005
D = Single Pulse
R (t) = r(t) * R
R = 137°C/W
Duty Cycle, D = t1/ t2
θ θ
θ
JA JA
JA
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10 100 1000 10000
P(pk)
t
1
t
2
Note 7
t , PULSE DURATION TIME (s)
1
Fig. 11 Single Pulse Maximum Power Dissipation
(B320A-B340A)
P
(p
k),
P
EAK
T
R
ANSI
E
N
T
P
O
WE
R
(W)
0
50
100
150
200
250
300
350
400
450
0.001 0.01 0.1 1 10 100 1000 10000
Single Pulse
R
= 140°C/W
R (t) = r(t) * R
T - T = P * R (t)
Note 7
θ
θ
θ
θ
JA
JA
JA
J A JA
t , PULSE DURATION TIME (s)
1
Fig. 12 Single Pulse Maximum Power Dissipation
(B350A-B360A)
P
(p
k),
P
EA
K
T
R
ANS
IEN
T
P
O
WE
R
(W
)
0
50
100
150
200
250
300
350
400
450
500
0.0001 0.01 1 100 10000
Single Pulse
R
= 137°C/W
R (t) = r(t) * R
T - T = P * R (t)
Note 7
θ
θ
θ
θ
JA
JA JA
J A JA