Avago-technologies ASSR-1411-001E Manuel d'utilisateur
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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 8-
Pin 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. ASSR-
xx1x 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”.
Figure 2. Output Stage of the ASSR Series
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
0
C to 85
0
C and a 10% tolerance
of the resistor are taken into consideration.
Opto-isolation
Anode
Cathode
-
Drain
Drain
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.
A load is required at the output port, which limits the
current through the two MOSFET devices. For resistive
load, its resistance should meet
on
D
Load
R
I
V
R −≥
max0
Where,
R
Load
is the resistance of the resistive load,
R
on
is the turn on resistance of the SSR, where R
on
=
6ohm can be used.
V
D
is the voltage applied on the MOSFET drain, and
I
o max
is the recommended maximum output current.
Résumé du contenu
Page 1 - Data Sheet
Solid State Relay, ASSR SeriesEvaluation BoardData SheetDescriptionThis evaluation board features Avago Technologies’Solid State Relay (SSR) with MOSF
Page 2 - Schematic Diagram
2Schematic Diagram2233441155667788U1DIP 8PINGull Wing SMT223311445566U2DIP 6PINGull Wing SMT22113344U3SOP 4PIN22113344U4SSOP 4PINR4R3R1R2R5R8R10R11R9R
Page 3 - Unpopulated Board
3Unpopulated BoardThe evaluation PCB is 3" x 3". There are 4 mounting holes at each corner.
Page 4 - Functional Diagram
4Functional DiagramNote: The functional diagrams are not drawn to scale.Channel Description Functional Diagram RemarksAU1, GullwingSurface Mount 8-Pin
Page 5 - Operation
5Pinout TableOperationIn the schematic diagram, R1, R2 ,R5, R8 and R10 arethe current limiting resistors before the input pins. Ifthe LED is driven by
Page 6 - AV01-0309EN - July 5, 2006
For product information and a complete list of distributors, please go to our web site: www.avagotech.comAvago, Avago Technologies, and the A logo are
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