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CPC1978
i4-PAC? Power Relay
I NTEGRATED C IRCUITS D IVISION
Characteristics
Description
Parameter
Blocking Voltage
Load Current, T A =25°C:
With 5°C/W Heat Sink
No Heat Sink
On-Resistance (max)
R ? JC
Rating
800
1.85
0.75
2.3
0.35
Units
V P
A rms / A DC
?
°C/W
IXYS Integrated Circuits Division and IXYS have
combined to bring OptoMOS? technology, reliability
and compact size to a new family of high-power Solid
State Relays.
As part of this family, the CPC1978 single-pole
normally open (1-Form-A) Solid State Power Relay is
rated for up to 1.85A rms continuous load current with a
5°C/W heat sink.
Features
? 1.85A rms Load Current with 5°C/W Heat Sink
? Low 2.3 ? On-Resistance
? 800V P Blocking Voltage
The CPC1978 employs optically coupled MOSFET
technology to provide 2500V rms of input to output
isolation. The optically coupled outputs, that use
patented OptoMOS architecture, are controlled by a
highly efficient GaAIAs infrared LED. The combination
?
?
?
?
?
?
?
2500V rms Input/Output Isolation
Low Thermal Resistance (0.35 °C/W)
Electrically Non-conductive Thermal Pad for Heat
Sink Applications
Low Drive Power Requirements
Arc-Free With No Snubbing Circuits
No EMI/RFI Generation
Machine Insertable, Wave Solderable
of low on-resistance and high load current handling
capability makes this relay suitable for a variety of high
performance switching applications.
The unique i4-PAC package pioneered by IXYS
enables Solid State Relays to achieve the highest load
current and power ratings. This package features a
unique IXYS process where the silicon chips are soft
Applications
soldered onto the Direct Copper Bond (DCB)
substrate instead of the traditional copper leadframe.
?
?
?
?
Industrial Controls / Motor Control
Robotics
Medical Equipment—Patient/Equipment Isolation
Instrumentation
? Multiplexers
? Data Acquisition
The DCB ceramic, the same substrate used in high
power modules, not only provides 2500V rms isolation
but also very low thermal resistance (0.35 °C/W).
Ordering Information
? Electronic Switching
? I/O Subsystems
? Meters (Watt-Hour, Water, Gas)
? Transportation Equipment
Part
CPC1978J
Description
i4-PAC Package (25 per tube)
? Aerospace/Defense
Approvals
? UL 508 Recognized Component: File E69938
Switching Characteristics
Form-A
Pin Configuration
I F
90%
I LOAD
10%
1
2
3
-
4
+
t on
t off
e 3
DS-CPC1978-R07
www.ixysic.com
1
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