Avago Technologies ASSR-1411-001E User Manual
Solid State Relay, ASSR Series
Evaluation Board
Data Sheet
Description
This evaluation board features Avago Technologies’
Solid State Relay (SSR) with MOSFET output, ASSR
Series, in 4 different IC package footprints. They are 8Pin DIP with Gull Wing Surface Mount, 6-Pin DIP with
Gull Wing Surface Mount, 4-Pin SO, and 4-Pin SSOP.
ASSR-xx2x Series, 2-form A (dual channel), is featured
in 8-Pin DIP with Gull Wing Surface Mount footprint
and offers 2 identical channels for evaluation. ASSRxx1x Series, 1-form A (single channel) Solid State Relays
are featured in the other 3 footprints on the evaluation
board. In total, the board can accommodate up to 5
channels.
Input
The input channels of the ASSR series are LED driven,
designated as “ANODE” and “CATHODE”.
Opto-isolation
-
Anode
Output
Each output pair of the ASSR Series is made up by two
MOSFET devices with equivalent output voltage rating.
The output traces from the MOSFET drains to the screw
terminals are 50ohm lines, which can withstand 6A,
300Vac.
Drain
Drain
Figure 2. Output Stage of the ASSR Series
A load is required at the output port, which limits the
current through the two MOSFET devices. For resistive
load, its resistance should meet
V
D
R −≥
Load
Where,
I
R
max0
on
Cathode
Figure 1. Input Stage of the ASSR Series
They are commonly driven by TTL or buffered CMOS
logic gates. A current limiting resistor at each anode is
usually required to limit the current through the LED
to a proper value. The recommended input forward
current is between 3mA and 20 mA. Thus, if driven by
a 5V power supply, it is recommended to use a resistor
value of 680 ohm. It provides a forward current
between 5mA to 6.5mA where the temperature
variation between -40 0C to 85 0C and a 10% tolerance
of the resistor are taken into consideration.
R
is the resistance of the resistive load,
Load
Ron is the turn on resistance of the SSR, where R
6ohm can be used.
V
is the voltage applied on the MOSFET drain, and
D
I
is the recommended maximum output current.
o max
on
=
Schematic Diagram
INPUT PIN
J1
ANODE-A
J2
CATHODE-A
J3
ANODE-B
J4
CATHODE-B
J5
ANODE-C
J6
CATHODE-C
J7
ANODE-D
J8
CATHODE-D
TP8
TP7
INPUT
R1
R2
R5
R8
OUTPUT
U1
TP5
TP6
TP23TP24
TP37TP38
TP1
TP2
TP3
TP4
TP21
TP22
TP35
TP36
1
1
2
2
3
3
4
4
DIP 8PIN
Gull Wing SMT
U2
1
1
2
2
3
3
DIP 6PIN
Gull Wing SMT
U3
1
1
2
2
SOP 4PIN
TP9
8
8
TP10
7
7
TP11
6
6
TP12
5
5
TP25
6
6
TP26
5
5
4
TP27
4
4
TP39
4
TP40
3
3
TP13
TP14
TP15
TP16
TP28
TP29
TP30
TP41
TP42
TP17
TP18
TP31
TP32
TP43
R4
R3
R7
R6
R9
TP19
TP20
TP33
TP34
TP44
1
2
1
2
1
2
3
1
2
A
SCREW-2PIN
B
SCREW-2PIN
C
SCREW-3PIN
D
SCREW-2PIN
J9
ANODE-E
J10
CATHODE-E
R10
TP47TP48
TP45
TP46
1
2
U4
1
2
SSOP 4PIN
TP49
4
4
3
TP50
3
TP51
TP52
TP53
R11
TP54
The output lines to the screw terminals are50ohms lines, which can withstand 6A, 300Vac.
E
1
2
SCREW-2PIN
2
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