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DS-CPC1788 - R03 www.clare.com 1
Characteristics
Features
•2.45ADC Load Current with 5°C/W Heat Sink
•Low 1.25Ω On-Resistance
•1000VP Blocking Voltage
•2500Vrms Input/Output Isolation
•Low Thermal Resistance (0.3 °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
Applications
•Industrial Controls / Motor Control
•Robotics
•Medical Equipment—Patient/Equipment Isolation
•Instrumentation
•Multiplexers
•Data Acquisition
•Electronic Switching
•I/O Subsystems
•Meters (Watt-Hour, Water, Gas)
•Transportation Equipment
•Aerospace/Defense
Approvals
•UL 508 Certified Component: File E69938
Pin Configuration
Description
Clare 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 new family, the CPC1788 single-pole
normally open (1-Form-A) DC Solid State Power
Relay employs optically coupled MOSFET technology
to provide 2500Vrms of input to output isolation.
The output, constructed with an efficient MOSFET
switch and photovoltaic die, uses Clare’s patented
OptoMOS architecture while the input, a highly
efficient GaAlAs infrared LED, provides the optically
coupled control. The combination of low on-resistance
and high load current handling capability makes this
relay suitable for a variety of high performance DC
switching applications.
The unique ISOPLUS-264 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 soldered onto the Direct Copper Bond
(DCB) substrate instead of the traditional copper
leadframe. The DCB ceramic, the same substrate
used in high power modules, not only provides
2500Vrms isolation, but also very low thermal
resistance (0.3 °C/W).
Ordering Information
Switching Characteristics
Parameter Rating Units
Blocking Voltage 1000 VP
Load Current, TA=25°C:
With 5°C/W Heat Sink 2.45 ADC
No Heat Sink 1
On-Resistance 1.25 Ω
RθJC 0.3 °C/W
12 34
+- -+
Part Description
CPC1788J ISOPLUS-264 Package (25 per tube)
Form-A
I
F
I
LOAD
10%
90%
ton toff
CPC1788
Single-Pole, Normally Open
ISOPLUS™-264 DC Power Relay
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CPC1788
1 Specifications
1.1 Absolute Maximum Ratings @ 25°C
Absolute maximum ratings are stress ratings. Stresses in
excess of these ratings can cause permanent damage to
the device. Functional operation of the device at conditions
beyond those indicated in the operational sections of this
data sheet is not implied.
1.2 Electrical Characteristics @ 25°C
1 Higher load currents possible with proper heat sinking.
2 Measurement taken within 1 second of on-time.
3 For applications requiring high temperature operation (TC > 60ºC) a LED drive current of 20mA is recommended.
Symbol Ratings Units
Blocking Voltage 1000 VP
Reverse Input Voltage 5 V
Input Control Current 100 mA
Peak (10ms) 1 ADC
Input Power Dissipation 150 mW
Isolation Voltage, Input to Output 2500 Vrms
Operational Temperature -40 to +85 °C
Storage Temperature -40 to +125 °C
Parameter Conditions Symbol Minimum Typical Maximum Units
Output Characteristics
Load Current 1
Peak t≤10ms
IL--
12 AP
Continuous No Heat Sink 1
Continuous TC=25°C 10.3 ADC
Continuous TC=99°C IL(99) 1.2
On-Resistance 2IF=10mA, IL=1A RON - 1 1.25 Ω
Off-State Leakage Current VL=1000VPILEAK --1μA
Switching Speeds
Tu r n - O n IF=20mA, VL=10V ton -2.8520
ms
Tu r n - O f f toff -0.115
Output Capacitance VL=25V, f=1MHz Cout -640-pF
Input Characteristics
Input Control Current 3IL=1A IF--10mA
Input Dropout Current - IF0.6 - - mA
Input Voltage Drop IF=5mA VF0.9 1.2 1.4 V
Reverse Input Current VR=5V IR--10μA
Input/Output Characteristics
Capacitance, Input-to-Output - CI/O -1-pF
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CPC1788
2 Thermal Characteristics
2.1 Thermal Management
Device high current characterization was performed using Kunze heat sink KU 1-159, phase change thermal interface
material KU-ALC 5, and transistor clip KU 4-499/1. This combination provided an approximate junction-to-ambient
thermal resistance of 12.5°C/W.
2.2 Heat Sink Calculation
Higher load currents are possible by using lower thermal resistance heat sink combinations.
Parameter Conditions Symbol Minimum Typical Maximum Units
Thermal Resistance (Junction to Case) - RθJC --0.3°C/W
Thermal Resistance (Junction to Ambient) Free Air RθJA -33-°C/W
Junction Temperature (Operating) - TJ-40 - 100 °C
TJ = Junction Temperature (°C), TJ ≤ 100°C *
TA = Ambient Temperature (°C)
IL(99) = Load Current with Case Temperature @ 99°C (ADC)
IL = Desired Operating Load Current (ADC), IL ≤ IL(MAX)
RθJC = Thermal Resistance, Junction to Case (°C/W) = 0.3°C/W
RθCA = Thermal Resistance of Heat Sink & Thermal Interface Material , Case to Ambient (°C/W)
PD(99) = Maximum power dissipation with case temperature held at 99ºC = 3.33W
* Elevated junction temperature reduces semiconductor lifetime.
Heat Sink Rating
RθCA = - RθJC
(TJ - TA) IL(99)
2
IL
2 • PD(99)
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CPC1788
3 Performance Data
Unless otherwise specified, all performance data was acquired without the use of a heat sink.
The Performance data shown in the graphs above is typical of device performance. For guaranteed parameters not indicated in the
written specifications, please contact our application department.
35
30
25
20
15
10
5
0
1.30 1.31 1.32 1.33 1.34
Device Count (N)
Typical LED Forward Voltage Drop
(N=50, IF=10mA, TA=25ºC)
LED Forward Voltage (V)
35
30
25
20
15
10
5
0
2.15 2.50 2.85 3.553.20 3.90
Device Count (N)
Typical Turn-On Time
(N=50, IF=20mA, IL=1ADC, TA=25ºC)
Turn-On (ms)
0.080 0.110 0.1400.065 0.095 0.125
Device Count (N)
25
20
15
10
5
0
CPC1788
Typical Turn-Off Time
(N=50, IF=20mA, IL=1ADC, TA=25ºC)
Turn-Off (ms)
35
30
25
20
15
10
5
0
0.900 0.925 0.950 0.975 1.000 1.025
Device Count (N)
Typical On-Resistance Distribution
(N=50, IF=10mA, IL=1ADC, TA=25ºC)
On-Resistance (Ω)
Typical LED Forward Voltage Drop
vs. Temperature
LED Forward Voltage Drop (V)
1.8
1.6
1.4
1.2
1.0
0.8
-40 -20 0 20 40 60 80 120100
Temperature (ºC)
IF=50mA
IF=10mA
IF=20mA
LED Forward Current (mA)
05 101520253035404550
12
11
10
9
8
7
6
5
4
3
2
1
0
Typical Turn-On
vs. LED Forward Current
(IL=250mADC)
Turn-On (ms)
LED Forward Current (mA)
05 1015202530354045
0.145
0.140
0.135
0.130
0.125
0.120
0.115
0.110
0.105
0.100
50
Typical Turn-Off
vs. LED Forward Current
(IL=250mADC)
Turn-On (ms)
-40
7
6
5
4
3
2
1
0
-20 0 20 40 60 80 100
Typical Turn-On vs. Temperature
(IL=250mADC)
Temperature (ºC)
IF=10mA
IF=20mA
Turn-On (ms)
-40
0.24
0.21
0.18
0.15
0.12
0.09
0.06
0.06
-20 0 20 40 60 80 100
Typical Turn-Off vs. Temperature
(IL=250mADC)
Temperature (ºC)
IF=20mA
IF=10mA
Turn-Off (ms)
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CPC1788
Unless otherwise specified, all performance data was acquired without the use of a heat sink.
The Performance data shown in the graphs above is typical of device performance. For guaranteed parameters not indicated in the
written specifications, please contact our application department.
-40
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0-20 0 20 40 60 80 100
Typical On-Resistance
vs. Temperature
(IF=10mA, IL=250mADC)
Temperature (ºC)
On-Resistance (Ω)
-40
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0-20 0 20 40 60 80 100
Typical On-Resistance
vs. Temperature
(IF=10mA, IL=Max Rated)
Temperature (ºC)
On-Resistance (Ω)
Load Current (A)
0
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
0.1 0.2 0.4 0.50.3 0.6
Typical Load Current
vs. Load Voltage
(IF=10mA, TA=25ºC)
Load Voltage (V)
Temperature (ºC)
020406080 100
Load Current (ADC)
0
1
2
3
4
5
6
Maximum Load Current
vs. Temperature
(With Heat Sink)
1ºC/W
Free Air
10ºC/W
5ºC/W
-40
1160
1140
1120
1100
1080
1060
1040
1020
1000
-20 0 20 40 60 80 100
Blocking Vol tage vs. Temperature
Temperature (ºC)
Blocking Voltage (VP)
-40
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-20 0 20 40 60 80 100
Typical Leakage vs. Temperature
Measured Across Pins 1&2
(VL=1000VP)
Leakage (μA)
Temperature (ºC)
Load Current (A)
Energy Rating Curve
Free Air, No Heat Sink
15.0
13.5
12.0
10.5
9.0
7.5
6.0
4.5
3.0
1.5
0
10µs 100µs 1ms 10ms 100ms 1s 10s 100s
Time
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CPC1788
4 Manufacturing Information
4.1 Moisture Sensitivity
All plastic encapsulated semiconductor packages are susceptible to moisture ingression. Clare classified
all of its plastic encapsulated devices for moisture sensitivity according to the latest version of the joint
industry standard, IPC/JEDEC J-STD-020, in force at the time of product evaluation. We test all of our
products to the maximum conditions set forth in the standard, and guarantee proper operation of our
devices when handled according to the limitations and information in that standard as well as to any limitations set
forth in the information or standards referenced below.
Failure to adhere to the warnings or limitations as established by the listed specifications could result in reduced
product performance, reduction of operable life, and/or reduction of overall reliability.
This product carries a Moisture Sensitivity Level (MSL) rating as shown below, and should be handled according to
the requirements of the latest version of the joint industry standard IPC/JEDEC J-STD-033.
4.2 ESD Sensitivity
This product is ESD Sensitive, and should be handled according to the industry standard
JESD-625.
4.3 Reflow Profile
This product has a maximum body temperature and time rating as shown below. All other guidelines of
J-STD-020 must be observed.
4.4 Board Wash
Clare recommends the use of no-clean flux formulations. However, board washing to remove flux residue is
acceptable. Since Clare employs the use of silicone coating as an optical waveguide in many of its optically isolated
products, the use of a short drying bake could be necessary if a wash is used after solder reflow processes.
Chlorine-based or Fluorine-based solvents or fluxes should not be used. Cleaning methods that employ ultrasonic
energy should not be used.
Device Moisture Sensitivity Level (MSL) Rating
CPC1788J MSL 1
Device Maximum Temperature x Time
CPC1788J 245°C for 30 seconds
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CPC1788
4.5 Mechanical Dimensions
NOTE: Back-side heat sink meets 2500Vrms isolation to the pins.
26.162 ± 0.254
(1.030 ± 0.010)
19.914 ± 0.254
(0.784 ± 0.010)
20.396 ± 0.508
(0.803 ± 0.020)
15.240 ± 0.508
(0.600 ± 0.020)
3.810 ± 0.254
(0.150 ± 0.010)
2.362 ± 0.381
(0.093 ± 0.015)
0.635 ± 0.076
(0.025 ± 0.003) 2.794 ± 0.127
(0.110 ± 0.005)
5.029 ± 0.127
(0.198 ± 0.005) 1.181 ± 0.076
(0.047 ± 0.003)
1.930 ± 0.381
(0.076 ± 0.015)
17.221 ± 0.254
(0.678 ± 0.010)
20.600 ± 0.254
(0.811 ± 0.010)
1.270 TYP
(0.050 TYP)
DIMENSIONS
mm
(inches)
For additional information please visit our website at: www.clare.com
Clare, Inc. makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to specifications and
product descriptions at any time without notice. Neither circuit patent licenses nor indemnity are expressed or implied. Except as set forth in Clare’s Standard Terms and Conditions of Sale,
Clare, Inc. assumes no liability whatsoever, and disclaims any express or implied warranty, relating to its products including, but not limited to, the implied warranty of merchantability, fitness for
a particular purpose, or infringement of any intellectual property right.
The products described in this document are not designed, intended, authorized or warranted for use as components in systems intended for surgical implant into the body, or in other
applications intended to support or sustain life, or where malfunction of Clare’s product may result in direct physical harm, injury, or death to a person or severe property or environmental
damage. Clare, Inc. reserves the right to discontinue or make changes to its products at any time without notice.
Specification: DS-CPC1788-R03
©Copyright 2010, Clare, Inc.
All rights reserved. Printed in USA.
11/17/2010