Index DW9937S, Service Manual

Page: 61 / 112

FSDM07652RB
Typical Performance Characteristics
(Continued)
(These Characteristic Graphs are Normalized at Ta= 25
°
C)
ShutDown Feedback Voltage vs. Temp
ShutDown Delay Current vs. Temp
Over Voltage Protection vs. Temp
Burst Mode Enable Voltage vs. Temp
Burst Mode Disable Voltage vs. Temp
Current Limit vs. Temp
0.0
0.2
0.4
0.6
0.8
1.0
1.2
-50 -25 0 25 50 75 100 125
Junction Temperature( ℃ )
Sh
ut
d
o
wn
F
B
V
o
lt
a
g
e
(Normal
iz
e
d
t
o
25
℃
)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
-50 -25 0 25 50 75 100 125
Junction Temperature( ℃ )
S
h
u
td
o
wn
Dela
y C
u
rr
e
n
t
(N
ormali
ze
d to 25
℃
)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
-50 -25 0 25 50 75 100 125
Junction Temperature( ℃ )
Over V
o
lt
a
g
e Pro
tect
io
n
(Normal
iz
e
d
t
o
25
℃
)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
-50 -25 0 25 50 75 100 125
Junction Temperature( ℃ )
B
u
rs
t Mo
d
e
E
n
a
b
le V
o
lt
a
g
e
(Normal
iz
e
d
t
o
25
℃
)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
-50 -25 0 25 50 75 100 125
Junction Temperature( ℃ )
Bu
rs
t M
o
d
e
D
is
a
bl
e V
o
lt
a
g
e
(Normal
iz
e
d
t
o
25
℃
)
0.0
0.2
0.4
0.6
0.8
1.0
1.2
-50 -25 0 25 50 75 100 125
Junction Temperature( ℃ )
Over C
u
rren
t Li
mi
t
(Normal
iz
e
d
t
o
25
℃
)
59