datasheetbank_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

BD809 View Datasheet(PDF) - Motorola => Freescale

Part Name
Description
View to exact match
BD809 Datasheet PDF : 0 Pages
BD809 BD810
1.0
0.7 D = 0.5
0.5
0.3
0.2
0.2
0.1
0.1
0.05
0.07
0.02
0.05
0.03
SINGLE PULSE
0.02
0.01
0.01
0.01 0.02 0.03 0.05 0.1
0.2 0.3 0.5
SINGLE P(pk)
θJC(t) = r(t) θJC
PULSE
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t1
TJ(pk) - TC = P(pk) θJC(t)
t1
t2
DUTY CYCLE, D = t1/t2
1.0 2.0 3.0 5.0
t, PULSE WIDTH (ms)
20 30 50 100 200 300 500 1000
Figure 6. Thermal Response
Note 1:
There are two limitations on the power handling ability of
a transistor: average junction temperature and second
breakdown. Safe operating area curves indicate IC – VCE
limits of the transistor that must be observed for reliable
operation, i.e., the transistor must not be subjected to greater
dissipation than the curves indicate.
The data of Figure 1 is based on TJ(pk) = 150_C; TC is
variable depending on conditions. Second breakdown pulse
limits are valid for duty cycles to 10% provided TJ(pk)
v 150_C. At high case temperatures, thermal limitations
will reduce the power that can be handled to values less than
the limitations imposed by second breakdown.
http://onsemi.com
4
 

Share Link: 

datasheetbank.com [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]