ETC LT214

Photo DMOS-FET Relay
Description
The LT214 is a miniature 1-Form A solid state relay in a 4 pin SOP package that employs optically
coupled MOSFET technology to provide 1500V of input to output isolation. The Input of optical
coupler been controlled by a highly efficient GaAlAs infrared LED and MOS FETs on the output side.
Features
‧SOP package 4 Pin type in miniature design (4.4×4.3×2.0mm / .173×.169×.083inch)
‧Low driver power requirements (TTL/CMOS Compatible)
‧High reliability
‧Arc-Free with no snubbing circuits
‧1500Vrms Input/Output isolation
‧Tape & Reel version available
Applications
‧Telecommunications (PC, Electronic notepad)
‧Measuring and Testing equipment
‧Industrial control
‧Security equipments
‧High speed inspection machine
‧Data communication equipments
‧Factory automotive equipments
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Letex Technology Corp.
Photo DMOS-FET Relay Specifications
Part Name: LT214
(Load voltage: 80V / Load current: 120mA)
Absolute Maximum Ratings (Ambient Temperature: 25℃)
Item
Symbol
Value
Units
Continuous LED Current
IF
50
mA
Peak LED Current
IFP
1000
mA
LED Reverse Voltage
VR
5
V
Input Power Dissipation
PIn
75
mW
Load Voltage
VL
80
V(AC peak or DC)
Load Current
IL
120
mA
Peak Load Current
IPeak
0.6
A
Output Power Dissipation
Pout
200
mW
Total Power Dissipation
PT
250
mW
I/O Breakdown Voltage
VI/O
1500
Operating Temperature
TOpr
-40 to +85
Vrm
℃
Storage Temperature
TStg
-40 to +100
℃
Pin Soldering Temperature
TSol
260
℃
Input
Output
Note
f=100Hz,
duty=1%
100ms(1 pulse)
RH=60%, 1min
10 sec max.
Electrical Specifications (Ambient Temperature: 25℃)
Item
Input
Transmis
sion
Coupled
MIN.
TYP.
MAX.
Units
LED Forward Voltage
VF
1.2
1.4
V
Operation LED Current
IF On
0.5
3
mA
Recovery LED Current
IF Off
0.35
0.5
mA
Recovery LED Voltage
VF Off
On-Resistance
Output
Symbol
0.5
Conditions
IF=10mA
V
ROn
8
12
Ω
IF=5mA,IL=100mA,
Time to flow is within
1 sec.
1
µA
VL=Rating
pF
VL=0, f=1MHz
Off-State Leakage
Current
ILeak
Output Capacitance
COut
17
Turn-On Time
TOn
0.15
0.5
ms
Turn-Off Time
TOff
0.05
0.2
ms
I/O Isolation Resistance
RI/O
I/O Capacitance
CI/O
109
0.8
2
1.5
IF=5mA, IL=100mA
Ω
DC500V
pF
f=1MHz
Letex Technology Corp.
Outline Dimensions
4
1
3
2
Unit : mm inch
Tolerance: 0.1 .004
Schematic
4
3
1
2
1.
2.
3.
4.
LED
LED
MOS
MOS
3
Anode
Cathode
FET
FET
Letex Technology Corp.
Reference Data
Load current Vs.
Ambient temperature
On resistance Vs.
Ambient temperature
Turn on time Vs.
Ambient temperature
3.0
50
LT211
120
40
2.5
LT210
LT210
100
60
40
30
Turn on time (ms)
On resistabce (Ω )
Load current (mA)
2.0
80
LT211
20
10
0
-40
-20
0
20
40
60
80
85
100
LT211
LT210
0
-40
-20
Ambient temperature (℃ )
0
20
40
60
85
100
-40
-20
0
Ambient temperature (℃ )
0.4
4
0.4
0.1
LED turn off time (mA)
0.5
LED operate current (mA)
5
0.2
40
60
80
85
100
LED turn off current Vs.
Ambient temperature
0.5
0.3
20
Ambient temperature (℃ )
LED operate current Vs.
Ambient temperature
Turn off time Vs.
Ambient temperature
Turn off time (ms)
1.0
0.5
20
0
1.5
3
2
1
0.3
0.2
0.1
LT211
LT210
0
0
-40
-20
0
20
40
60
85
100
0
-40
-20
Ambient temperature (℃ )
0
20
40
60
85
100
-40
-20
0
Ambient temperature (℃ )
Voltage Vs. currennt characteristics
of output at MOS portion
LED forward voltage Vs.
Ambient temperature
20
40
60
85
100
Ambient temperature ( ℃ )
Off state leakage current
LED forward voltage (V)
1.4
1.3
LT211
100
10-3
LT210
80
Off state leakage current (A)
Current, A
1.5
60
40
20
-5
1.2
-4
-3
-2
1
50mA
30mA
20mA
10mA
5mA
1.1
-1
-20
2
3
4
5
Voltage, V
-40
-60
1.0
10-6
10-9
LT210
-80
10-12
-100
0
-40
-20
0
20
40
60
85
100
0
20
Ambient temperature (℃ )
LED foward current Vs.
turn off time characteristics
60
80
100
0.12
1.0
0.10
Turn off time (ms)
1.2
0.8
0.6
0.4
Applied voltage Vs.
output capacitance characteristics
200
Out capacitance (pF)
LED foward current Vs.
turn on time characteristics
Turn on time (ms)
40
Load voltage ( V)
0.08
0.06
0.04
150
100
50
0.2
0.02
0
0
0
10
20
30
40
LED forward current (mA)
50
60
0
0
10
20
30
40
LED forward current (mA)
4
50
60
0
10
20
30
40
50
Applied voltage (V)
Letex Technology Corp.
Taping Specifications for Surface Mount Devices
Label sticking position
Direction of feed
Unit : mm
Recommended Mounting Pad
Marking
(Unit: mm / Tolerance: ±0.1)
(Each photo MOS relay shall be marked with the
following information)
Brand Name
Letex
LT214
Part Name
162
Date Code
162
Note: 1.
Weeks
Monthly
Year
There shall be 400 mm of leader minimum what may consist of carrier and cover tape follower.
2.
Devices are pockets in accordance with IEC standard IEC286-3 (JIS C 0806) and specifications given above.
3.
Packaging:2,000pcs per reel, 2 reel per box, 5 boxes per carton.
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Letex Technology Corp.