Data Sheet

©2004 Fairchild Semiconductor Corporation www.fairchildsemi.com
FOD420, FOD4208, FOD4216, FOD4218 Rev. 1.6 7
FOD420, FOD4208, FOD4216, FOD4218 — 6-Pin DIP High dv/dt Random Phase Triac Drivers
Typical Performance Characteristics
-40-60 80 100
0.6
0.8
1.0
1.2
1.4
1.6
V
AK
= 5.0 V
Normalized to T
A
= 25°C
110
I
F
– FORWARD CURRENT (mA)
V
F
– FORWARD VOLTAGE (V)
0.1 100
0.6
0.8
1.0
1.2
1.4
1.6
1.8
Figure . Forward Voltage
(V
F
) vs. Forward Current (I
F
)
Figure . Peak LED Current
vs. Duty Factor, Tau
-20 0 20 40 60
T
A
– AMBIENT TEMPERATURE (°C)
I
FT
– NORMALIZED LED TRIGGER CURRENT
Figure . Normalized LED Trigger Current
(I
FT
) vs. Ambient Temperature (T
A
)
-55°C
25°C
85°C
1 100
1
10
100
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10000
1000
100
10
2000 800 1000
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
0034
1
10
100
1000
t – LED PULSE DURATION (s)
If(pk) – PEAK LED CURRENT (mA)
Figure . Pulse Trigger Current
400 600
P
W
– PULSE WIDTH (μs)
IF
TH(PW)
/IF
TH(DC)
– NORMALIZED IF
TH
Figure . On-State Voltage
(V
TM
) vs. On-State Current (I
TM
)
012
V
TM
– ON-STATE VOLTAGE (V)
I
TM
– ON-STATE CURRENT (mA)
10
I
FT
/I
F
– NORMALIZED I
F
(mA)
Figure . Trigger Delay Time
t
D
– DELAY TIME (μs)
0.5
0.2
0.1
0.05
0.02
0.01
0.005
FactorDuty
t
DF =
τ
τ
t
t
D
= t(I
F
/I
FT 25°C)
V
D
= 400 V
P-P
F = 60 Hz
V
L
= 250 V
P-P
60 HzF =
Normalized to DC
T
A
= 100°C
T
A
= 25°C