Maximum ratings, Thermal characteristics, Dss2515m – Diodes DSS2515M User Manual
Page 2
DSS2515M
Document number: DS31816 Rev. 3 - 2
2 of 5
January 2011
© Diodes Incorporated
DSS2515M
Maximum Ratings
@T
A
= 25°C unless otherwise specified
Characteristic Symbol
Value
Unit
Collector-Base Voltage
V
CBO
15 V
Collector-Emitter Voltage
V
CEO
15 V
Emitter-Base Voltage
V
EBO
6 V
Collector Current - Continuous
I
C
500 mA
Peak Pulse Collector Current
I
CM
1 A
Peak Base Current
I
BM
100 mA
Thermal Characteristics
Characteristic Symbol
Value
Unit
Power Dissipation (Note 4) @ T
A
= 25
°C P
D
250 mW
Thermal Resistance, Junction to Ambient (Note 4) @ T
A
= 25
°C
R
θJA
500
°C/W
Operating and Storage Temperature Range
T
J
, T
STG
-55 to +150
°C
Notes:
4. Device mounted on FR-4 PCB with minimum recommended pad layout.
0.000001
0.0001
0.001
0.01
0.1
1
10
100
1,000
10,000
Fig. 1 Transient Thermal Response
t , PULSE DURATION TIME (s)
1
0.00001
0.001
0.01
0.1
1
r(
t),
T
R
AN
SI
EN
T
T
H
E
R
MA
L
R
ES
IS
T
AN
C
E
T - T = P * R
(t)
Duty Cycle, D = t /t
J
A
JA
1 2
θ
R
(t) = r(t) *
θJA
R
R
= 500°C/W
θ
θ
JA
JA
P(pk)
t
1
t
2
D = 0.7
D = 0.5
D = 0.3
D = 0.05
D = 0.02
D = 0.01
D = 0.005
D = Single Pulse
D = 0.9
D = 0.1
0.1
1
10
100
1,000
1E-06
0.0001
0.01
1
100
10,000
Fig. 2 Single Pulse Maximum Power Dissipation
t , PULSE DURATION TIME (s)
1
P
(p
k
),
PE
AK T
R
AN
SI
ENT
P
O
WE
R
(W
)
Single Pulse
T - T = P * R
(t)
J
A
JA
θ
R
(t) = r(t) *
θJA
R
R
= 500°C/W
θ
θ
JA
JA
0
50
100
150
200
T , AMBIENT TEMPERATURE ( C)
A
°
Fig. 3 Power Dissipation vs. Ambient Temperature (Note 4)
0
0.05
0.10
0.15
0.30
P
,
P
O
WE
R
DIS
S
IP
A
T
IO
N (
W
)
D
0.20
0.25
R
= 500°C/W
θJA