DIONICS, INC.
65 Rushmore Street
Westbury, NY 11590
Phone: (516) 997-7474
Fax: (516) 997-7479
Website: www.dionics-usa.com
DIH-126, DIH-127, DIH-136 Power MOSFET N/O SPST
Photovoltaic AC-DC Relay
Features:
Low Level Logic Compatibility
Thermal Protection With Hysteresis
Optical Isolation to 400VDC
Low On Resistance, Low Offset Voltage
Meet 28V DC System Surge and Spike
Requirements of Mil STD-704.
Current Limiting
Designed To Meet MIL-R-28750
Y-Level MIL Screening Available
Applications:
28V DC Aircraft Power Control &
Distribution
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:
DIH-126, DIH-127 and DIH-136 are State-of-the-Art AC-DC Photovoltaic (PV) Solid State Relays designed for A.T.E.
applications where speed, power, on-resistance and leakage current are critical. These PV relays incorporate an infrared
LED input, a PV diode array connected to the gates of 2 pairs of power MOSFETs as output and a unique turn-off circuit.
The PV diode array is 2 series-connected groups of photosensitive diodes, which are electrically isolated from, but
optically coupled to the input LEDs. When activated, each LED emits infrared light toward the PV diode array, which
then responds with a self-generated open circuit voltage, Voc, proportional to the LED input current. This Voc, which is
floating and completely isolated from any power supply, is applied to the gates of the power MOSFETs. At the proper
value of the input LED current, the generated Voc is sufficient to turn on the MOSFETs and cause the relay to conduct.
The MOSFET outputs provide thermal stability, immunity from false turn-on, and low offset voltage.
DIH-126, DIH-127 and DIH-136 are specific PV relays that are produced from one basic semi-custom design. Options,
such as: current limiting, thermal protection, short circuit protection, status indication, constant current input or ultra fast
switching may be incorporated into customized versions of these relays
* Equivalent Schematic:
Enh.
Enh.
6
LED
PV
2
5
1
4
Pin designation
Pin number
1
2
3
4
5
6
Function
Input + Input - Case Output Common Output
Drain + Source - Drain +
* Package Layout:
0.100
1
KOVAR, NI - PLATED
GLASS
0.300
XXXX
0.020
0.175
0.018 Typ.
KOVAR, AU - PLATED
DIH-126
0.020
DIONICS
6
5
0.150
0.420
4
3
0.420
2
08/2001
v
Electrical Characteristics (@ 25
0
C unless otherwise specified):
AC-DC Wiring Config. (1)
DC Wiring Config. (2)
Single MOSFET
DC Wiring Config. (3)
Parallel MOSFETs
Enh.
Enh
.
LED
PV
AC
1
2
Rload
Enh.
Enh.
LED
PV
1
2
Rload
VCC
Enh.
VCC
Enh.
LED
PV
R load
2
1
v
Input Characteristics
Condition
Min. Typ.
Max Unit
Turn-On Current
I
load
= 100mA
-
5
10
mA
Turn-Off Voltage
1.2
-
-
V
Forward Voltage Drop
Input Current = 10mA
-
2.2
2.6
V
Input Current = 25mA
-
2.6
3.0
V
Reverse Voltage
Reverse Current = 10
A
10
-
-
V
v
Output Characteristics
AC-DC Wiring Config.(1)
DC Wiring Config.(2)
DC Wiring Config.(3)
Unit
DIH-126 DIH-127 DIH-136 DIH-126 DIH-127 DIH-136 DIH-126 DIH-127 DIH-136
Max. Load Current
1.0
0.30
1.25
1.20
0.35
1.65
1.55
0.55
2.10
A
( In Free Air and I
in
= 50 mA)
Load Current (20ms Pulse, 1% Duty Cycle)
10.0
1.5
12.0
11.0
1.7
13.0
16.0
2.5
18.0
A
Load Voltage (I
load
= 10
A)
200
400
100
+200
+400
+100
+200
+400
+100
V
On Resistance (I
in
= 15mA, Load @5A)
0.80
8.00
0.60
0.40
4.00
0.30
0.20
2.00
0.15
Typical Output Capacitance
80
25
80
160
50
160
320
100
320
pF
(Bias Voltage= 50V)
I
leakage
@180V; 350V; 80V (DIH-126/127/136) 0.20
0.05
0.40
0.20
0.05
0.40
0.40
0.10
0.80
A
Output Offset Voltage (I
in
= 15mA)
250
250
250
250
250
250
250
250
250
V
T
on
Time @1A; 0.3A; 1.25A (126/127/136)
550
250
800
550
250
800
650
300
900
s
T
off
Time @1A; 0.3A; 1.25A (126/127/136)
70
70
70
70
70
70
70
70
70
s
v Environmental Conditions:
Operating Temp. :
-20 to 85
0
C (Comm.)
(Y-Level Mil.)
-55 to 125
0
C
Storage Temp. :
-20 to 85
0
C (Comm.)
(Y-Level Mil.)
-55 to 125
0
C
Shock: (Y-Level Mil.)
50 G, MIL-STD-202
Method 202
Hermeticity:
Gross Leak (Comm.)
10
-5
atm cc/sec
(Y-Level Mil.)
Fine Leak
5x10
-8
atm cc/sec
Vibration: (Y-Level Mil.)
20G, 10 to 2000 Hz
Acceleration: (Y-Level Mil.) 100 G
Weight:
1.5 Grams
Td(on)
Vop
10%
T(on)
Td(off)
Output
90%
90%
10%
10%
Input
0V
T(off)
0V
5V
90%
v General Characteristics:
Minimum Input/Output Isolation:
400 VDC
Minimum Input/Output Resistance:
10
8
Ohms
Typical Input/Output capacitance:
10pF
Typical Thermal Resistance:
15mW/
0
C
Min. Transient Protection Capability (dv /dt ):
100V/
s
Maximum Power Dissipation @ 25
0
C:
1 W
08/2001
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