User Manual

2DA1797
Document number: DS31619 Rev. 4 - 2
3 of 7
www.diodes.com
November 2013
© Diodes Incorporated
2D
A
1797
NEW PRODUCT
Thermal Characteristics and Derating Information (@T
A
= +25°C, unless otherwise specified.)
100m 1 10
10m
100m
1
10
100µs
Single Pulse
T
amb
=25°C
V
CE(sat)
Limited
1ms
10ms
100ms
1s
DC
Safe Operating Area
-I
C
Collector Current (A)
-V
CE
Collector-Emitter Voltage (V)
0
0.4
0.8
25 50
75
100 125
150
P
,
P
O
WE
R
DISSI
P
A
T
I
O
N (W)
D
T , AMBIENT TEMPERATURE (°C)
Fig. 1 Power Dissipation vs.
Ambient Temperature
A
1.2
1.6
2.0
0
FR-4 PCB
1 inch copper pad
2
FR-4 PCB
Minimum
recommended pad
0.00001 0.0001 0.001 0.01 0.1 1 10 100 1,000
Fig. 10 Transient Thermal Response
t , PULSE DURATION TIME (s)
1
0.001
0.01
0.1
1
r(t), TR
A
N
S
I
E
NT TH
E
R
M
A
L R
E
S
I
S
T
A
N
C
E
T - T = P * R (t)
Duty Cycle, D = t /t
JA JA
12

R (t) = r(t) *
 JA
R
R = 126°C/W


JA
JA
P(pk)
t
1
t
2
D = 0.7
D = 0.3
D = 0.1
D = 0.05
D = 0.02
D = 0.01
D = 0.005
D = Single Pulse
D = 0.9
D = 0.5