INTEGRATED CIRCUITS DIVISION
www.ixysic.com
DS-CPC1540-R03 1
CPC1540
e3
Pb
Single-Pole, Normally Open OptoMOS® Relay
with Integrated Current Limit and Thermal Shutdown
Part # Description
CPC1540G 6-Pin DIP (50/Tube)
CPC1540GS 6-Pin Surface Mount (50/Tube)
CPC1540GSTR 6-Pin Surface Mount, Tape & Reel (1000/Reel)
Parameter Rating Units
Load Voltage 350 VP
Load Current 120 mArms / mADC
On-Resistance (max) 25
Input Control Current 2 mA
Applications
Features
Description
Ordering Information
Pin Configuration
• Integrated Active Current-Limit Protection
• Thermal Shutdown
• Guaranteed Turn-On: 2mA Input Control Current
• 350VP Blocking Voltage
• 3750Vrms Input/Output Isolation
• Small Surface Mount Package
• Low Drive Power Requirements (TTL/CMOS
Compatible)
• Arc-Free With No Snubbing Circuits
• No EMI/RFI Generation
• Machine Insertable, Wave Solderable
Switching Characteristics of
Normally Open Devices
Approvals
• UL Certified Component: File E76270
• CSA Certified Component: Certificate 1172007
• EN/IEC 60950-1 Certified Component:
TUV Certificate: B 10 05 49410 006
Form-A
IF
ILOAD
10%
90%
ton toff
The CPC1540 is a normally open (1-Form-A) Solid
State Relay with an integrated current limit feature
that can replace electromechanical relays while
enhancing the robustness of wireline-interface
applications.
Designed specifically to target the hook switch
telephony market, the CPC1540 has a load voltage
rating of 350V.
The relay is constructed using a GaAIAs LED for
actuation control and an integrated monolithic die for
the switch output. The die, fabricated in a
high-voltage dielectrically isolated technology,
comprises a photodiode array, switch control with
active current limiting circuitry, and MOSFET
switches. Active current-limit circuitry in the
CPC1540 provides a thermal shutdown feature,
offering excellent power-cross immunity for improved
survivability in harsh environments.
These enhancements greatly improve the robustness
of end systems using this device compared to
systems using relays without the integrated current
limit. In addition, the active current limit circuitry
enables the CPC1540 to pass FCC 68.302 and
other regulatory voltage surge requirements when
adequate overvoltage protection is provided. The
CPC1540 relay may be used in both AC and DC
applications.
• Telphony hook switch
• VoIP gateways, such as VoIP
• IP-PBXs
• Satellite and cable set-top boxes
• V.92 (and other standard) modems
• Fax machines
• Voicemail systems
• Embedded modems for POS terminals,
automated banking, remote metering, vending
machines, security, and surveillance
• Instrumentation
• Medical equipment—Patient/equipment isolation
• Aerospace
• Industrial controls
1
3
2
4
5
6
+ Control
– Control
Do Not Use
Load
Do Not Use
Load
AC/DC Configuration
1
3
2
4
5
6
+ Control
– Control
Do Not Use
+ Load
– Load
DC Only Configuration