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
1
Letex Technology Corp.
Photo DMOS-FET Relay Specifications
Part Name: LT214
(Load voltage: 80V / Load current: 120mA)
Absolute Maximum Ratings
(Ambient Temperature: 25℃)
Item
Continuous LED Current
Input
Peak LED Current
LED Reverse Voltage
Input Power Dissipation
Load Voltage
Output
Load Current
Peak Load Current
Output Power Dissipation
Total Power Dissipation
I/O Breakdown Voltage
Operating Temperature
Storage Temperature
Pin Soldering Temperature
Symbol
I
F
I
FP
V
R
P
In
V
L
I
L
I
Peak
Pout
P
T
V
I/O
T
Opr
T
Stg
T
Sol
Value
50
1000
5
75
80
120
0.6
200
250
1500
-40 to +85
-40 to +100
260
Units
mA
mA
V
mW
V(AC peak or DC)
mA
A
mW
mW
Vrm
℃
℃
℃
10 sec max.
RH=60%, 1min
100ms(1 pulse)
f=100Hz,
duty=1%
Note
Electrical Specifications
(Ambient Temperature: 25℃)
Item
LED Forward Voltage
Input
Operation LED Current
Recovery LED Current
Recovery LED Voltage
On-Resistance
Output
Off-State Leakage
Current
Output Capacitance
Transmis
sion
Coupled
Turn-On Time
Turn-Off Time
I/O Isolation Resistance
I/O Capacitance
Symbol
V
F
I
F On
I
F Off
V
F Off
R
On
0.5
8
12
MIN.
TYP.
1.2
0.5
0.35
MAX.
1.4
3
0.5
Units
V
mA
mA
V
Ω
I
F
=5mA,I
L
=100mA,
Time to flow is within
1 sec.
V
L
=Rating
V
L
=0, f=1MHz
I
F
=5mA, I
L
=100mA
DC500V
f=1MHz
Conditions
I
F
=10mA
I
Leak
C
Ou
t
T
On
T
Of
f
R
I/O
C
I/O
10
9
0.8
17
0.15
0.05
1
µA
pF
0.5
0.2
1.5
ms
ms
Ω
pF
2
Letex Technology Corp.
Outline Dimensions
4
3
1
2
Unit : mm
inch
Tolerance: 0.1
.004
Schematic
4
3
1
2
1.
2.
3.
4.
LED
LED
MOS
MOS
Anode
Cathode
FET
FET
3
Letex Technology Corp.
Reference Data
Load current Vs.
Ambient temperature
50
120
100
On resistance Vs.
Ambient temperature
3.0
Turn on time Vs.
Ambient temperature
LT211
40
LT210
On resistabce (
Ω
)
30
LT210
2.5
2.0
Load current (mA)
80
60
40
20
0
-40
-20
0
20
40
60
80
85
LT211
Turn on time (ms)
1.5
20
1.0
10
0.5
LT211
LT210
0
100
-40
-20
0
20
40
60
85
100
0
-40
-20
0
20
40
60
80
85
100
Ambient temperature (
℃
)
Ambient temperature (
℃
)
Ambient temperature (
℃
)
Turn off time Vs.
Ambient temperature
0.5
5
LED operate current Vs.
Ambient temperature
0.5
LED turn off current Vs.
Ambient temperature
0.4
4
0.4
LED operate current (mA)
Turn off time (ms)
0.3
3
LED turn off time (mA)
-20
0
20
40
60
85
100
0.3
0.2
2
0.2
0.1
1
0.1
LT211
LT210
0
-40
-20
0
20
40
60
85
100
0
-40
0
-40
-20
0
20
40
60
85
100
Ambient temperature (
℃
)
Ambient temperature (
℃
)
Ambient temperature (
℃
)
LED forward voltage Vs.
Ambient temperature
1.5
Voltage Vs. currennt characteristics
of output at MOS portion
100
80
60
40
20
Off state leakage current
LT211
LT210
Off state leakage current (A)
1.4
LED forward voltage (V)
1.3
Current, A
10
-3
10
-6
1.2
50mA
30mA
20mA
10mA
5mA
-5
-4
-3
-2
-1
1
-20
-40
-60
2
3
4
5
Voltage, V
1.1
10
-9
LT210
10
-12
0
20
40
60
80
100
1.0
-80
-100
0
-40
-20
0
20
40
60
85
100
Ambient temperature (
℃
)
Load voltage (
V
)
LED foward current Vs.
turn on time characteristics
1.2
0.12
LED foward current Vs.
turn off time characteristics
Applied voltage Vs.
output capacitance characteristics
200
1.0
0.10
0.8
0.08
0.6
0.06
Out capacitance (pF)
10
20
30
40
50
60
150
Turn on time (ms)
Turn off time (ms)
100
0.4
0.04
50
0.2
0.02
0
0
10
20
30
40
50
60
0
0
0
0
10
20
30
40
50
LED forward current (mA)
LED forward current (mA)
Applied voltage (V)
4
Letex Technology Corp.
Taping Specifications for Surface Mount Devices
Label sticking position
Direction of feed
Unit : mm
Recommended Mounting Pad
(Unit: mm / Tolerance:
±0.1)
Marking
(Each photo MOS relay shall be marked with the
following information)
Brand Name
Letex
LT214
162
Part Name
Date Code
162
Weeks
Monthly
Year
Note: 1.
2.
3.
There shall be 400 mm of leader minimum what may consist of carrier and cover tape follower.
Devices are pockets in accordance with IEC standard IEC286-3 (JIS C 0806) and specifications given above.
Packaging：2,000pcs per reel, 2 reel per box, 5 boxes per carton.
5
Letex Technology Corp.
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