Datasheet

7/10
Photocouplers
LTV-352T
Part No. LTV-352T
BNC-OD-FC002/A4
Fig.7 R elative Current Transfer Ratio
vs. Am bient Tem perature
Fig.8 C ollector-em itter S aturation Voltage
Fig.9 C ollector D ark C urrent vs.
Tem perature
Fig.10 R esponse T im e vs. Load
CE
vs. Am bient Tem perature
10
1
Collector-em itter saturation voltage
V (sat) (V)
Am bient tem p erature Ta ( C)
10.1
1000
O
Resistance
Voltag e g ain Av (d B)
-25
0
Frequency f (kHz)
500
Fig.11 Frequency R esponse
-5
-10
-15
-20
1001010.1
VCE= 2V
IC= 20m A
Ta= 25 C
RL= 1k 100 10
2
5
10
20
50
100
200
500
Response tim e ( s)
Load resistance RL (k )
VCE= 2V
IC= 20mA
Ta= 25 C
Test C ircuit for R esponse T im e
Test C ircuit for Frequency R esponse
Input
Outp ut
Input
Outp ut
Vcc
td
tr tf
ts
90%
10%
Outp ut
Vcc
Am bient tem p erature Ta ( C)
O
Collector d ark current ICEO (nA)
tr
tf
td
ts
RD
RL
RL
RD
O
O
0
Am bient tem p erature Ta ( C)
Relative current transfer ratio (%)
100
1.0
O
80604020
0.8
0.6
0.4
0.2
IF= 1m A
VCE= 2V
1.2
120
20
1.0
10040 60 80
0.8
0.6
0.4
0.2
1.2
IF= 20m A
IC= 100m A
120
10080604020
1
1000
100
10
VCE= 200V
10000
120