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FEATURES
* This specification shall be applied to photocoupler. Model No. LTV-357T as an option. * Current transfer ratio ( CTR : MIN. 50% at IF = 5mA, VCE = 5V ) * Isolation voltage between input and output LTV-357T-V ( Viso = 3,750Vrms ) * Employs double transfer mold technology * Subminiature type ( The volume is smaller than that of conventional DIP type by as far as 30% ) * Mini-flat package : 2.0mm profile : LTV-357T-V * UL approved ( No. E113898 ) * CUL approved ( No. E113898 , 01SC19287 ) * CSA approved ( No. 1243207 ) * FIMKO approved ( No. FI-16420 ) * NEMKO approved ( No. P01100403 ) * DEMKO approved ( No. 310475-01 ) * SEMKO approved ( No. 0109173 / 01-08 ) * VDE approved ( No. 094722 ) * RoHS compliance
APPLICATIONS
* Hybrid substrates that require high density mounting. * Programmable controllers
Part No. : LTV-357T-V
BNS-OD-C131/A4
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OUTLINE DIMENSIONS
LTV-357T-V :
2.540.25 Pin No. and Internal connection diagram Date Code *1 4 3
4.400.2
FACTORY CODE. *2 BIN NO. *3 3.850.3
VDE 0884 IDENTIFICATION
1 1. Anode 2. Cathode
2 3. Emitter 4. Collector
5.300.3 0.20.05
2.000.2
*1. 2-digit date code. *2. Factory identification mark shall be marked (Z : Taiwan, Y : Thailand, X : China). *3. Rank shall be or shall not be marked.
Part No. : LTV-357T-V
BNS-OD-C131/A4
0.100.1
0.400.1
7.00+0.2 -0.7
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TAPING DIMENSIONS
Description Tape wide Pitch of sprocket holes Distance of compartment Distance of compartment to compartment
Symbol W P0 F P2 P1
Dimensions in mm ( inches ) 12 0.3 ( .47 ) 4 0.1 ( .15 ) 5.5 0.1 ( .217 ) 2 0.1 ( .079 ) 8 0.1 ( .315 )
Part No. : LTV-357T-V
BNS-OD-C131/A4
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ABSOLUTE MAXIMUM RATING
( Ta = 25C ) PARAMETER Forward Current INPUT Reverse Voltage Power Dissipation Collector - Emitter Voltage Emitter - Collector Voltage OUTPUT Collector Current Collector Power Dissipation Total Power Dissipation *1 Isolation Voltage Operating Temperature Storage Temperature *2 Soldering Temperature IC PC Ptot Viso Topr Tstg Tsol 50 150 170 3,750 -55 ~ +100 -55 ~ +150 260 mA mW mW Vrms C C C SYMBOL IF VR P VCEO VECO RATING 50 6 70 35 6 UNIT mA V mW V V
*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
Part No. : LTV-357T-V
BNS-OD-C131/A4
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ELECTRICAL - OPTICAL CHARACTERISTICS
( Ta = 25C ) PARAMETER Forward Voltage INPUT Reverse Current Terminal Capacitance Collector Dark Current Collector-Emitter Breakdown Voltage Emitter-Collector Breakdown Voltage Collector Current *1 Current Transfer Ratio Collector-Emitter Saturation Voltage TRANSFER CHARACTERISTICS Isolation Resistance Floating Capacitance Response Time (Rise) Response Time (Fall) SYMBOL MIN. TYP. MAX. UNIT VF IR Ct ICEO BVCEO -- -- -- -- 35 1.2 -- 30 -- -- 1.4 10 250 100 -- V A pF nA V CONDITIONS IF=20mA VR=4V V=0, f=1KHz VCE=20V, IF=0 IC=0.1mA IF=0 IE=10A IF=0 IF=5mA VCE=5V IF=20mA IC=1mA DC500V 40 ~ 60% R.H. V=0, f=1MHz VCE=2V, IC=2mA RL=100
OUTPUT
BVECO IC CTR VCE(sat)
6 2.5 50 --
-- -- -- --
-- 30 600 0.2
V mA % V pF s s
Riso Cf tr tf
5x1010 1x1011 -- -- -- 0.6 4 3
-- 1 18 18
*1
CTR =
IC x 100% IF
Part No. : LTV-357T-V
BNS-OD-C131/A4
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RANK TABLE OF CURRENT TRANSFER RATIO CTR
MODEL NO.
RANK MARK A B C
CTR ( % ) 80 ~ 160 130 ~ 260 200 ~ 400 300 ~ 600 50 ~ 150 100 ~ 300 50 ~ 600
LTV-357T-V
D E F A or B or C or D or E or F or No mark
IF = 5 mA CONDITIONS VCE = 5 V Ta = 25 C
Part No. : LTV-357T-V
BNS-OD-C131/A4
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ISOLATION SPECIFICATION ACCORDING TO VDE 0884
Parameter Class of environmental test Pollution Maximum Operating Isolation Voltage Partial Discharge Diagram 1 Test Voltage (Between Input and Diagram 2 Output) Maximum Over-voltage Safety Maximum Ratings 1) Case Temperature 2) Input Current 3) Electric Power (Output or Total Power Issipation)
Symbol VIORM
Conditions DIN IEC68 DIN VDE0110 tp=60s, qc<5pC
Rating 30/100/21 2 565 848 1059 6000
Unit VPEAK VPEAK VPEAK VPEAK
Remark
Vpr tp=1s, qc<5pC VINITIAL tINI = 10s
Refer to the Diagram 1, 2
Tsi Isi Psi
IF = 0, Pc = 0 Pc=0 Ta=Tsi
150 200 300 MIN.109 MIN.1011 MIN.1012
o
C
mA mW
Refer to the Figure 1, 3
Isolation Resistance (Test Voltage Between Input and Output : DC500V)
RISO
Ta=Topr(MAX.) Ta=25 oC
Precautions in performing isolation test * Partial discharge test methods shall be the ones according to the specifications of VDE 0884:1992-06 * Please don't carry out isolation test (Viso) over VINITIAL ,This product deteriorates isolation characteristics by partial discharge due to applying high voltage (ex. VINITIAL ). And there is possibility that this product occurs partial discharge in operating isolation voltage (VIORM)
Part No. : LTV-357T-V
BNS-OD-C131/A4
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PARTIAL DISCHARGE TEST METHOD
Method (A) for type testing and random testing. V VINTIAL
Vpr VIORM t1, t2 = 1 to 10s t3, t4 = 1s tp (Partial Discharge Measuring Time)= 60s tb = 62s tini = 10s
t3 t1 tini t2
tp tb
t4
t
Method (B) for routine testing. V Vpr
VIORM
t3, t4 = 0.1s tp (Partial Discharge Measuring Time)= 1s tb = 1.2s
t3
tp tb
t4
t
The partial discharge level shall not exceed 5 pC during the partial discharge measuring time interval tp under the test conditions shown above.
Part No. : LTV-357T-V
BNS-OD-C131/A4
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CHARACTERISTICS CURVES
Fig.1 Forword Current vs. Ambient Temperatute
60
Fig.2 Collector Power Dissiption vs. Ambient Temperature
Collector Power dissipation Pc (mW)
200
Forward current IF(mA)
50 40 30 20 10 0 -55
150
100
50
0
25
50
75
100
o
125
0 -55
0
25
50
75
100
o
125
Ambient temperature Ta ( C)
Ambient temperature Ta ( C)
Fig.3 Collector-emitter Saturation Voltage vs. Forward Current
1mA 3mA 5mA Collecotr-emitter saturation voltage VCE (sat) (V) Ic= 0.5mA 7mA
6 5 4 3 2 1 0 0 5 10 15 Ta= 25 C
O
Fig.4 Forward Current vs. Forward Voltage
500
o
Forward current IF(mA)
200 100 50 20 10 5 2 1 0
Ta= 75 C 50 C
o
25 C 0C -25 C
o o
o
0.5
1.0
1.5
2.0
2.5
3.0
Forward current IF(mA)
Forward voltage VF(V)
Fig.5 Current Transfer Ratio vs. Forward Current
200 180 160 140 120 100 80 60 40 20 0 1 2 5 10 20 50
Fig.6 Collector Current vs. Collector-emitter Voltage
50
Current transfer ratio CTR (%)
VCE= 5V Ta= 25 C
o
IF= 30mA
Collector current Ic (mA)
40
25mA
Ta= 25 C
o
20mA 30 15mA 20 10mA 10 5mA 0 0 1 2 3 4 5 6 7 8 9 Pc(MAX.)
Forward current IF(mA)
Collector-emitter voltage VCE(V)
Part No. : LTV-357T-V
BNS-OD-C131/A4
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CHARACTERISTICS CURVES
Fig.7 Relative Current Transfer Ratio vs. Ambient Temperature
150
Relative current transfer ratio (%)
Fig.8 Collector-emitter Saturation Voltage vs. Ambient Temperature
Collector-emitter saturation voltage VCE (sat) (V)
0.10
IF= 5mA VCE= 2V
100
IF= 20mA IC= 1mA
0.08 0.06 0.04 0.02 0
50
0 20 40 60 80
o
100
20
40
60
80
o
100
Ambient temperature Ta ( C)
Ambient temperature Ta ( C)
Fig.9 Collector Dark Current vs. Ambient Temperature
10000
Fig.10 Response Time vs. Load Resistance
500 200 100 50 20 10 5 2 1 0.5 0.2 0.05 ts
Collector dark current ICEO (nA)
VCE= 20V
Response time ( s)
1000
VCE= 2V IC= 2mA Ta= 25 C
o
tr tf td
100
10
1 20 40 60 80
o
100
0.1 0.2
0.5
1
2
5
10
Ambient temperature Ta ( C)
Load resistance RL (k )
Fig.11 Frequency Response
Test Circuit for Response Time
Vcc Input Output Output
Voltage gain Av (dB)
0
VCE= 2V IC= 2mA Ta= 25 C
o
Input
RD
RL
10% 90%
td
ts tr tf
100
10
RL= 10k
1k
Test Circuit for Frequency Response
Vcc 20 0.5 1 2 5 10 20 50 100 500
RD
RL
Output
Frequency f (kHz)
Part No. : LTV-357T-V
BNS-OD-C131/A4
Page : 10 of 12
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TEMPERATURE PROFILE OF SOLDERING REFLOW
(1) One time soldering reflow is recommended within the condition of temperature and time profile shown below.
Part No. : LTV-357T-V
BNS-OD-C131/A4
Page : 11 of 12
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TEMPERATURE PROFILE OF SOLDERING REFLOW
(2) When using another soldering method such as infrared ray lamp, the temperature may rise partially in the mold of the device. Keep the temperature on the package of the device within the condition of above (1)
RECOMMENDED FOOT PRINT PATTERNS (MOUNT PAD)
Unit : mm
Part No. : LTV-357T-V
BNS-OD-C131/A4
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