DIONICS, INC.
65 Rushmore Street
Westbury, NY 11590
Phone: (516) 997-7474
Fax: (516) 997-7479
Website: www.dionics-usa.com
DIH-134-SM Power MOSFET Dual N/O SPST Photovoltaic DC Relay
Features:
!
!
!
!
!
!
!
Applications:
Package Contains Two N/O DC Relays
!
Replacement of Mechanical Relays
Fast Switching Speeds
!
Motor Control & Power Control
Optically Isolated to 400V DC.
!
Aircraft Flight Control Systems
Immune to False Triggering
!
A.T.E (Automatic Test Equipment)
Hermetic Gull-Wing Surface Mount Package
!
Load Control From Processor I/O Ports
Y-Level MIL-Screening Available (DIH-134-SMY)
!
Power Supply Circuits
Designed to Meet MIL-R28750 and 28V DC System
!
Medical Electronics
Surge and Spike Requirement of MIL STD-704.
!
Tactical Aircraft
0
0
0
!
Operation Temp. –40 C to 85 C @ 200mA Load (Above
85 C Derate Load 5mA /
0
C)
Description:
The DIH-134-SM is a State-of-the-Art Photovoltaic Solid State Relay designed for 28V DC Aircraft power applications
where speed, current overload protection and immunity to transient voltages are critical.
The DIH-134-SM contains current limiting networks and thermally sensitive integrated circuits that disable the output, if
the output MOSFETs approach an unsafe operating temperature. Because the thermally sensitive integrated circuits have
built-in hysteresis, the output MOSFETs are automatically restarted when a safe temperature is reached. This auto restart
feature eliminates the need for system restart signals. If the overload condition continues to exist, the cycle is repeated; if
the overload condition is removed, the relay returns to normal operation.
The gull-wing surface mount package contains two independent N/O relays, with separate LED inputs and optically
isolated power MOSFET outputs. Each relay, A or B, is capable of carrying 350mA DC continuous current and 500mA
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-134-SM is also available screened to military specifications, as required.
Package Layout:
DIH-134-SM Equivalent Circuit:
A-14; B-10
Enh.
0.395 SQ. MAX.
DIH-134-SM
XXXX
0.555 ± 0.010
DIONICS INC.
A-1; B-5
0.445
100 Ohms
LED
Thermal Link
Thermal
Sensor
PV
NPN
Rs
0.015
0.300
0.050
A-3; B-7
A-12; B-8
0.005
0.120 MAX.
02/2003
DIH-134-SM: Power MOSFET Dual SPST Photovoltaic DC Relay
Electrical Characteristics:
(Per Relay @ 25
0
C unless otherwise specified)
"
Relay A: Normally Open (N/O)
"
Relay B: Normally Open (N/O)
"
Pin Designations
"
Input Characteristics
Symbol
I
in
V
in
V
rev.
V
on
V
off
Parameter
Input Current
Input Voltage Drop
Reverse Voltage
On State Voltage
Off State Voltage
Min.
5.0
1.3
3.5
Typ.
15.0
Max. Unit
24.0
mA
1.5
V
10.0
V
V
1.5
V
Relay
Relay
A
Relay
B
Pin
Number
1
3
5
7
2,4,6
Inputs
A+
A
−
B+
B
−
NC
Pin
Number
14
12
10
8
9,11,13
Outputs
Drain A +
Source A
−
Drain B +
Source B
−
NC
"
Output Characteristics
Symbol
I
load
R
on
I
leak
R
iso
V
op
BV
T
on
T
off
V
iso
Parameter
Load Current
On Resistance
@ T
a
= 85
0
C
Leakage Current
Input/Output Resistance
Operating Voltage
Breakdown Voltage
Turn-On Time
Turn-Off Time
Input-Output Isolation
Typ.
10
8
28
150
20
Max.
350 / 500
2
3
10
60
95
300
40
400
400
Unit
mA
Ω
Ω
µA
Ω
VDC
VDC
µs
µs
V
mW
Limited by Power Dissipation
At 100
µA
V
in
= 4.5V, P.W* = 100ms; V
op
= 30V
V
in
= 4.5V, P.W =100ms; V
op
= 30V
DC
In Free Air
Conditions
Continuous / Peak
I
in
=18 (mA); I
load
= 100mA
I
in
=18 (mA); I
load
= 100mA
V
op
=90 (V)
Maximum Power Dissipation
P
PW*: Pulse Width.
"
Timing Diagram
5V
"
Environmental Ratings:
•
•
•
Storage Temperature: -55
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.
Input
90%
10%
T(on)
0V
T(off)
Td(on)
Vop
Td(off)
90%
90%
Output
0V
10%
10%
Embedded System
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