Datasheet

Document Number: 83690 For technical questions, contact: [e-mail]
www.vishay.com
Rev. 1.5, 07-May-08 197
BRT21/BRT22/BRT23
Optocoupler, Phototriac Output,
Zero Crossing
Vishay Semiconductors
TYPICAL CHARACTERISTICS
T
amb
= 25 °C, unless otherwise specified
Fig. 2 - Normalized LED Trigger Current vs. Power Factor
Fig. 3 - Forward Voltage vs. Forward Current
Fig. 4 - Peak LED Current vs. Duty Factor, Tau
Fig. 5 - Maximum LED Power Dissipation
Fig. 6 - Typical Output Characteristics
Fig. 7 - Current Reduction
iil410_02
1.21.00.80.60.40.20.0
0.8
1.0
1.2
1.4
1.6
1.8
2.0
PF - Power Factor
NI
Fth
- Normalized LED
Trigger Current
I
Fth
Normalized to I
Fth
at PF = 1.0
T
a
= 25 °C
iil410_03
1001010.1
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
I
F
- Forward Current (mA)
V
F
- Forward Voltage (V)
T
a
= - 55 °C
T
a
= 25 °C
T
a
= 85 °C
iil410_04
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
10
100
1000
10000
t - LED Pulse Duration (s)
If(pk) - Peak LED Current (mA)
0.005
0.05
0.02
0.01
0.1
0.2
0.5
Duty Factor
t
τ
DF = /t
τ
iil410_05
100806040200- 20- 40- 60
0
50
100
150
T
a
- Ambient Temperature (°C)
LED - LED Power (mW)
10
3
10
2
10
1
5
5
5
10
0
012 43
iil410_06
I
T
= f(V
T
),
Parameter: T
j
T
j
= 25 °C
100 °C
I
T
(mA)
V
T
(V)
400
300
200
100
0
020406080 100
iil410_07
I
TRMS
(mA)
T
A
(°C)
I
TRMS
= f(V
T
),
R
thJA
= 150 K/W
Device switch
soldered in pcb
or base plate.