1/11
Photocouplers
LTV-356T
Part No. LTV-356T
BNC-OD-FC002/A4
1. DESCRIPTION
1.1 Features
Current transfer ratio ( CTR : MIN. 50% at I
F
= 5mA, V
CE
= 5V )
High input-output isolation voltage ( Viso = 3,750Vrms )
High collector-emitter voltage ( V
CEO
= 80V )
Subminiature type (The volume is smaller than that of conventional DIP type by as far as 30%)
Employs double transfer mold technology
Mini-flat package : 2.0mm profile : LTV-356T
Safety approval
UL 1577
VDE DIN EN60747-5-5 (VDE 0884-5) ,
CSA CA5A
CQC GB4943.1-2011/ GB8898-2011
FIMKO/DEMKO/SEMKO/NEMKO
RoHS Compliance
All materials be used in device are followed EU RoHS directive (No.2002/95/EC).
ESD pass HBM 8000V/ MM2000V/ CDM2000V
MSL class1
1.2 Applications
Hybrid substrates that require high density mounting.
Programmable controllers
2/11
Photocouplers
LTV-356T
Part No. LTV-356T
BNC-OD-FC002/A4
2. PACKAGE DIMENSIONS
Part No : LTV-356T
Notes :
1. 1-digit Year date code, 2-digit work week.
2. Factory identification mark shall be marked (W: China -CZ, X: China -TJ)
3. Rank shall be or shall not be marked.
4. “●” indicates halogen free option.
5. “4”or”V” for VDE option.
3/11
Photocouplers
LTV-356T
Part No. LTV-356T
BNC-OD-FC002/A4
3. TAPING DIMENSIONS
P/N : LTV-356T
TP1 MINI FLAT (3000pcs/reel): No Suffix & Suffix “TP1”
Description Symbol Dimension in mm (inch)
Tape wide W 12±0.3 (0.47)
Pitch of sprocket holes P
0
4±0.1 (0.15)
F 5.5±0.1 (0.217)
Distance of compartment P
2
2±0.1 (0.079)
Distance of compartment to
compartment P
1
8±0.1 (0.315)
4/11
Photocouplers
LTV-356T
Part No. LTV-356T
BNC-OD-FC002/A4
4. RATING AND CHARACTERISTICS
4.1 Absolute Maximum Ratings at Ta=25°C
Parameter Symbol Rating Unit
Forward Current I
F
50 mA
Reverse Voltage V
R
6 V
Input
Power Dissipation P 70 mW
Collector - Emitter Voltage V
CEO
80 V
Emitter - Collector Voltage V
ECO
6 V
Collector Current I
C
50 mA
Output
Collector Power Dissipation P
C
150 mW
Total Power Dissipation P
tot
170 mW
1. Isolation Voltage V
iso
3750 V
rms
Operating Temperature T
opr
-55 ~ +110
o
C
Storage Temperature T
stg
-55 ~ +150
o
C
2. Soldering Temperature T
sol
260
o
C
1. AC For 1 Minute, R.H. = 40 ~ 60%
Isolation voltage shall be measured using the following method.
(1) Short between anode and cathode on the primary side and between collector and emitter on the
secondary side.
(2) The isolation voltage tester with zero-cross circuit shall be used.
(3) The waveform of applied voltage shall be a sine wave.
2. For 10 Seconds
5/11
Photocouplers
LTV-356T
Part No. LTV-356T
BNC-OD-FC002/A4
4.2
ELECTRICAL OPTICAL CHARACTERISTICS at Ta=25°C
1.
100%
I
I
CTR
F
C
×=
Parameter
Symbol
Min. Typ. Max.
Unit
Test Condition
Forward Voltage V
F
— 1.2 1.4
V I
F
=20mA
Reverse Current I
R
— — 10 µA
V
R
=4V
Input
Terminal Capacitance C
t
— 30 250
pF
V=0, f=1KHz
Collector Dark Current I
CEO
— — 100
nA
V
CE
=20V, I
F
=0
Collector-Emitter
Breakdown Voltage BV
CEO
80 — — V I
C
=0.1mA, I
F
=0
Output
Emitter-Collector
Breakdown Voltage BV
ECO
6 — — V I
E
=10µA, I
F
=0
Collector Current I
C
2.5 — 30 mA
1. Current Transfer Ratio CTR 50 — 600
%
I
F
=5mA
V
CE
=5V
Collector-
Emitter
Saturation Voltage V
CE(sat)
— — 0.2
V I
F
=20
mA
I
C
=1mA
Isolation Resistance R
iso
5×10
10
1×10
11
— Ω DC500V,
40 ~ 60% R.H.
Floating Capacitance Cf — 0.6 1 pF
V=0, f=1MHz
Response Time (Rise) tr — 4 18 µs
TRANSFER
CHARACTERISTICS
Response Time (Fall) tf — 3 18 µs
V
CE
=2V,
I
C
=2mA
R
L
=100Ω,
6/11
Photocouplers
LTV-356T
Part No. LTV-356T
BNC-OD-FC002/A4
5. RANK TABLE OF CURRENT TRANSFER RATIO CTR
Parameter CTR Rank Min Max Condition
A 80 160
B 130 260
C 200 400
D 300 600
DC Current Transfer Ratio
A or B or C or D or
No mark 50 600
I
F
=5mA, V
CE
=5V, Ta=25
o
C
7/11
Photocouplers
LTV-356T
Part No. LTV-356T
BNC-OD-FC002/A4
6. CHARACTERISTICS CURVES
Fig.4 Forward Current vs. Forward
Fig.5 Current Transfer Ratio vs.
Forward Current Fig.6 Collector Current vs.
Collector-emitter Voltage
Ta= 75 C
50 C 25 C
0 C
-25 C
Ta= 25 C
Pc(MAX.)
5mA
10mA
20mA
Current transfer ratio CTR (%)
Collector current Ic (mA)
Fig.3 Collector-emitter Saturation
Voltage vs. Forward Current
CE
Ic= 0.5mA
1mA
3mA
7mA
5mA
Ta= 25 C
Collecotr-emitter saturation voltage
V (sat) (V)
Voltage
o
O
o
o
oo
o
o
0
1
0
015
1
2
3
4
5
6
0.5 1.0 1.5 2.0 2.5 3.0
2
5
10
20
50
100
200
500
01002 5 10 20 50
20
40
60
80
100
120
140
160
180
200
123456789
10
30
50
105
20
40 25mA
15mA
Collector-emitter voltage V
CE
(V)
Forward current I
F
(mA)
Forward current I
F
(mA) Forward voltage V
F
(V)
Forward current I
F
(mA)
V
CE
= 5V
Ta= 25 C I
F
= 30mA
Fig.1 Forward Current vs. Fig.2 Collector Power Dissipation vs.
Ambient Temperature
0
Collector power dissipation Pc (mW)
Ambient temperature Ta ( C) Ambient temperature Ta ( C)
60
0
50
100
150
200
Ambient Temperature
oo
50
40
30
20
10
Forward current I
F
(mA)
0 5025 75 100 125-55 -55 125250 50 75 100
0.01
0.1
1
10
0.1 1 10 100
Normalized CTR
I
F
- Forward Current - mA
V
CE
= 5V
V
CE
= 0.4V
Normalized to
I
F
= 5mA
V
CE
= 5V
T
A
= 25
o
C
0
10
20
30
40
50
60
70
0 2 4 6 8 10
I
C
- Collector Emitter - mA
V
CE
(non-sat) - Non-Saturated Collector Emitter Voltage - V
I
F
= 5mA
I
F
= 10mA
I
F
= 1mA
T
A
= 25
o
C
P
C
Max.
8/11
Photocouplers
LTV-356T
Part No. LTV-356T
BNC-OD-FC002/A4
tr
tf
td
ts
Fig.8 Collector-emitter Saturation Voltage
Fig.9 Collector Dark Current vs.
Ambient Temperature Fig.10 Response Time vs. Load
Fig.11 Frequency Response
CE
vs. Ambient Temperature
Ambient temperature Ta ( C)
Ambient temperature Ta ( C)
Frequency f (kHz)
Response time ( s)
Voltage gain Av (dB)
Collector-emitter saturation voltage
V (sat) (V)
o
o
o
o
0.2
0.0520 40 60 80 100 0.1 0.2 0.5 1 2 5 10
0.5
1
2
5
10
20
50
100
200
500
0.5
20
10
0
2 10 100 500
Resistance
Fig.7 Relative Current Transfer Ratio
vs. Ambient Temperature
1 5 20 50
Test Circuit for Response Time
Test Circuit for Frequency Response
Input
Input
Vcc
ts
Output
Output
tr
Output
Vcc
td
tf
10%
90%
Load resistance R
L
(k )
Collector dark current I
CEO
(nA)
V
CE
= 20V V
CE
= 2V
I
C
= 2mA
Ta= 25 C
R
D
R
L
R
D
R
L
R
L
= 10k
Ω
1k
Ω
100
Ω
V
CE
= 2V
I
C
= 2mA
Ta= 25 C
1
10
10000
1000
100
Ambient temperature Ta ( C)
o
Relative current transfer ratio (%)
020 40 60 80 100
50
100
150
I
F
= 1mA, V
CE
= 5V
120
I
F
= 20mA
I
C
= 1mA
020 40 80 100
0.02
0.04
0.06
0.08
0.10
60 120
120
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
0.18
0.2
-60 -40 -20 0 20 40 60 80 100 120
V
CE(sat)
- Saturated Collector-Emitter
Voltage - V
T
A
- Ambient Temperature -
o
C
I
F
= 20mA, I
C
= 1mA
I
F
= 10mA, I
C
= 1mA
I
F
= 5mA, I
C
= 1mA
0
0.2
0.4
0.6
0.8
1
1.2
1.4
-60 -40 -20 0 20 40 60 80 100 120
Normalized CTR
Temp (
o
C)
Normalized to
I
F
=5mA
Vce=5V
Ta=25
o
C
9/11
Photocouplers
LTV-356T
Part No. LTV-356T
BNC-OD-FC002/A4
7. TEMPERATURE PROFILE OF SOLDERING
7.1 IR Reflow soldering (JEDEC-STD-020C compliant)
One time soldering reflow is recommended within the condition of temperature and time profile shown below. Do not solder more than three
times.
Profile item Conditions
Preheat
- Temperature Min (T
Smin
)
- Temperature Max (T
Smax
)
- Time (min to max) (ts)
150˚C
200˚C
90±30 sec
Soldering zone
- Temperature (T
L
)
- Time (t
L
)
217˚C
60 ~ 100 sec
Peak Temperature (T
P
) 260˚C
Ramp-up rate 3˚C / sec max.
Ramp-down rate 3~6˚C / sec
60 ~ 120 sec
25 C
150 C
200 C
260 C
217 C
60-100 sec
Time (sec)
Temperature ( C)
20 sec
Tsmax
ts (Preheat)
tL (Soldering)
Tsmin
TL
TP
Ramp-down
Ramp-up
10/11
Photocouplers
LTV-356T
Part No. LTV-356T
BNC-OD-FC002/A4
7.2 Wave soldering (JEDEC22A111 compliant)
One time soldering is recommended within the condition of temperature.
Temperature: 260+0/-5˚C
Time: 10 sec.
Preheat temperature:25 to 140˚C
Preheat time: 30 to 80 sec.
7.3 Hand soldering by soldering iron
Allow single lead soldering in every single process. One time soldering is recommended.
Temperature: 380+0/-5˚C
Time: 3 sec max.
11/11
Photocouplers
LTV-356T
Part No. LTV-356T
BNC-OD-FC002/A4
8. RRECOMMENDED FOOT PRINT PATTERNS (MOUNT PAD)
Unit: mm
9. Notes:
LiteOn is continually improving the quality, reliability, function or design and LiteOn reserves the right to make changes
without further notices.
The products shown in this publication are designed for the general use in electronic applications such as office automation
equipment, communications devices, audio/visual equipment, electrical application and instrumentation.
For equipment/devices where high reliability or safety is required, such as space applications, nuclear power control
equipment, medical equipment, etc, please contact our sales representatives.
When requiring a device for any ”specific” application, please contact our sales in advice.
If there are any questions about the contents of this publication, please contact us at your convenience.
The contents described herein are subject to change without prior notice.
Immerge unit’s body in solder paste is not recommended.
