Datasheet

7/10
Photocouplers
LTV-355T
Part No. LTV-355T
BNC-OD-FC002/A4
Fig.7 Relative C urrent Transfer Ratio
vs. Ambient Tem perature
Fig.8 Collector-em itter Saturation Voltage
Fig.9 Collector Dark C urrent vs.
Ambient Tem perature
Fig.10 R esponse Tim e vs. Load
Fig.11 Frequency R esponse
Ta= 25 C
tr
tf
td
ts
vs. Ambient Tem perature
Am bient tem perature Ta ( C)
Am bient tem perature Ta ( C)
Freq uency f (kHz)
o
o
o
o
0.2
0.05 0.1 0.2 0.5 1 2 5 10
0.5
1
2
5
10
20
50
100
200
500
0.02
-20
-10
0
0.1 10 1001
Resistance
Test Circuit for Response Tim e
Test Circuit for Frequency Response
Input
Outp ut
Input
Outp ut
Vcc
td
tr tf
ts
90%
10%
Collecotr dark current ICEO (nA)
Relative current transfer ratio (%)
Response tim e ( s)
Voltage g ain Av (d B)
Load resistance RL(k )
RL
RD
RL
RD
Outp ut
Vcc
VCE= 2V
IC= 10m A
VCE= 2V
IC= 2m A
Ta= 25 C
RL= 10k
1k 100
Am bient tem perature Ta ( C)
o
Collector-emitter saturation voltag e
VCE(sat) (V)
10020 40 60 80
IF= 20m A
IC= 1m A
120
0
20 40 60 80 100
50
100
150
IF= 1m A, VCE= 5V
120
0
0.2
0.4
0.6
0.8
1.0
1.2
40 60 80 100
1
10
100
1000
10000
100000
20
VCE= 20V
120