Datasheet FAN431A (ON Semiconductor) - 6

FAN Typical Performance Characteristics 431A
800
—
150 V = V KA REF
P
V = V KA REF T = 25oC T = 25oC A A 600
r )
100
A) o A

( gr
) A (uA
rent
NT 400
I a
t (m 50
rent (m KA(MIN)
RE
ur m
ren ur
ur C
C
C
CUR DE
m
de O ho 0 200 TH at
a athode
, C , CA I K
athode
I KA
b - C l - C
0
e
-50
I K I KA S h
-100 -200
unt
-2 -1 0 1 2 3 -1 0 1 2 3 V , Cathode Voltage (V) KA
V
V , CATHODE VOLTAGE (V)
KA - Cathode Voltage (V)
KA
VKA - Cathode Voltage (V) R Figure 10. Cathode Current vs. Cathode Voltage Figure 11. Cathode Current vs. Cathode Voltage egul ator
0.20 3.5 0.18
A)
)
A)
3.0
t (
 0.16 (uA
t (
 ) 0.14
urren
rent (uA 2.5 ur
urren
0.12 C urrent 2.0 C
hode C
0.10 ut
at Input C
athode e Inp 1.5 0.08
e C
C
ce
0.06 erenc tate 1.0
eren
ef
ff-Stat ef
ff-S 0.04 , R I ref
- O - R
0.5 , O
f
f 0.02
I off
I
I re
of 0.0 0.00 -50 -25 0 25 50 75 100 125 -50 -25 0 25 50 75 100 125 150
T o A
T
-
, Am
Ambi
bi
e
ent
nt
Te
T
m
em
pe
pe
ra
ra
ture (o
ture (
C)
C)
A
T
T
A
,
-
Ambient
Ambie
Te
nt
m
T
p
e
er
m
atu
pe
re
ra
(o
t
C)
ure (oC)
A
Figure 12. OFF-State Cathode Current vs. Figure 13. Reference Input Current vs. Ambient Temperature Ambient Temperature
6 60 T = 25oC A T =25oC I = 10mA A
)
50 KA 5 INPUT
n (dB
40
(V)
)
ai
4 (dB n
e G ing
ai 30
w
G ing (V) 3
oltag
OUTPUT Voltage 20 ltage Sw
tage S
Vo Loop 2
oop V Vol
pen O 10
L pen
1 0
O
0 -10 0 4 8 12 16 20 1k 10k 100k 1M 10M Time (us)
Time (
Frequency (Hz)
Frequency (Hz)

s) Figure 14. Frequency vs. Small Signal Voltage Figure 15. Pulse Response Amplification
© 2007 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN431A Rev. 3.4 5