DIONICS, INC.
65 Rushmore Street
Westbury, NY 11590
Phone: (516) 997-7474
Fax: (516) 997-7479
Website: www.dionics-usa.com
DIH-1378 Power MOSFET SPDT Photovoltaic AC-DC Relay
Features:
•
•
•
•
•
•
•
•
Two AC-DC Relays; One N/C, One N/O
Easily Connected as Single AC-DC, SPDT Relay
Fast Switching Speeds, 60
µs
Max.
Low Level Logic Compatibility
Immune to False Triggering
Small size, Hermetic 8-pin SIP Package
High Isolation Voltage
Designed to Meet MIL-R28750
Applications:
•
•
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Replacement of Mechanical Relays
Motor Control & Power Control
Aircraft Flight Control Systems
A.T.E (Automatic Test Equipment)
Load Control From Processor I/O Ports
High-side DC Power Switching
Power Supply Circuits
Medical Electronics
Description:
The DIH-1378 is a State-of-the-Art Photovoltaic Solid State Relay designed for special AC-DC switching power
applications where package space efficiency and high reliability are critical.
Each package contains two independent relays. One is normally closed (N/C) and the other is normally opened (N/O).
Both relays are built with separate input LEDs and optically isolated power MOSFET outputs. The N/C and N/O outputs
are able to operate either AC or DC. Connecting the two inputs either in series or parallel (depending on available power
supply) will convert the (N/C), (N/O) of DIH-1378 from 2 single SPST relays into a single SPDT configuration.
Each relay, A or B, is capable of carrying 150mA AC or DC continuous current and 250mA DC peak current. Each LED
optically couples to a Photovoltaic (PV) IC chip which responds by generating a voltage. This voltage is internally
connected to the Gate and Source terminals of the output MOSFETs, thus controlling their current. The DIH-1378 is also
available screened to military specifications, as required.
Truth Table
Relay
Input Output
A
Low Close
Pins 1-4
High Open
B
Low Open
Pins 5-8
High Close
Pin Designations
Pin number Function Relay Status
1
Input +
2
Input -
A
Normally
3
Output (N/C)
Close
4
Output
5
Input +
6
Input -
B
Normally
7
Output (N/O)
Open
8
Output
*
Package Layout:
Weight 1.5 Grams
0.780 Max
.
0.120 Max
.
DIONICS INC
.
DIH-1378
xxxx
0.040
0.270 Max.
0.300 Min
.
0.020
0.100
0.046 Typ
.
0.010
12/2001
DIH-1378: Power MOSFET SPDT Photovoltaic AC-DC Relay
Electrical Characteristics
(@ 25
0
C unless otherwise specified):
v
Relay A: Normally Close (N/C)
v
Relay B: Normally Open (N/O)
3
v
Input Characteristics
(Per Relay)
Symbol
Parameter
Min.
Input Current
5.0
I
in
Input Voltage Drop
1.3
V
in
V
rev.
Reverse Voltage
On State Voltage (A)
V
on
On State Voltage (B) 3.5
OFF State Voltage (A) 3.5
V
off
OFF State Voltage (B)
10 Mohms
100 Ohms
1
Dep.
Relay
A
Typ.
20.0
Max. Unit
30.0
mA
1.5
V
10.0
V
1.2
V
V
V
1.2
V
2
LED
PV
4
7
PV
100 Ohms
5
LED
Enh.
Dep.
Relay
B
6
Enh.
DIH-1378 Schematic
10 Mohms
8
v
Output Characteristics
Symbol
Parameter
I
load
Load Current
R
on
On Resistance
V
op
BV
T
on
T
off
V
iso
P
Operating Voltage
Breakdown Voltage
Turn-On Time
Turn-Off Time
Input-Output Isolation
Maximum Power Dissipation
v
Timing Diagram
5V
Relay
A
A
B
A or B
A or B
A
B
A
B
A or B
A or B
Typ.
8
8
30
15
15
40
40
Max.
150 / 250
20
20
80
100
60
60
60
60
400
400
Unit
mA
Ω
Ω
V
V
µ
s
µ
s
µ
s
µ
s
VDC
mW
Condition
Continuous / Peak
I
in
=20 (mA); V
op
=80 (V)
I
in
=20 (mA); V
op
=80 (V)
AC or DC
DC
V
in
=3.5V, P.W* = 100µs; V
op
=30V
V
in
=3.5V, P.W =100µs; V
op
=30V
V
in
=3.5V, P.W =100µs; V
op
=30V
V
in
=3.5V, P.W =100µs; V
op
=30V
PW*: Pulse Width.
v
Environmental Ratings:
•
•
•
Storage Temperature: -25
0
C to +125
0
C
Constant Acceleration: 5000G
Hermeticity: + Gross 1x10
-5
atm cc/sec
+ Fine 5 x 10
-8
atm cc/s **
** When screened to MIL-Specs.
90%
Input
10%
T(on)
0V
90%
T(off)
Td(on)
Vop
Td(off)
90%
Output
0V
10%
10%
12/2001
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