Clare | Products

Solid State Relays

Optically Isolated Solid State Relays
Clare’s OptoMOS® range of solid state relays uses discrete semiconductor components and the patented OptoMOS architecture to deliver fast, reliable, bounce-free switching in a compact design. From the world’s smallest single-pole, 4-pin relay to multiple-pole and multi-function devices, OptoMOS products are an ideal solid state replacement for larger reed and electro-mechanical relays. Compared to these old electromagnetic technologies, the Clare OptoMOS relays offer significantly lower drive current, small package size, no susceptibility to magnetic interaction and solid-state reliability. All these are key requirements for the design of today’s complex low-power, multi-channel products.

Power Solid State Relays i4-PAC™, ISOPLUS™-264 and Power SIP Relays
Clare and IXYS have joined forces to bring OptoMOS technology, reliability and compact size to the new i4-PAC and ISOPLUS-264 series of power solid state relays.Development of these new products was founded on the blending of Clare’s traditional strengths in the design and manufacture of photovoltaic integrated circuits (ICs), leadframe design and multichip packaging with IXYS’ expertise in power MOSFETs, power packages and substrate technology.

Optically Isolated Multifunction Products
Clare's OptoMOS range of multifunction products combines optically isolated discrete component functions in a single package. These products mix and match solid state relays, optocouplers, bridge rectifier, Darlington transistor and zener diode components to create highly functional circuits in a single, small package.

MOSFET Gate Drivers
Clare's MOSFET drivers couple infrared light emitting diodes with proprietary photovoltaic integrated circuits. In addition to providing voltage for turn-on of discrete MOSFETs, these patented ICs feature a gate-clamping circuit to provide fast turn-off. These devices offer a significant reduction in drive circuit complexity, board space and cost over alternative techniques for isolated switching of MOSFETs. Used in conjunction with discrete MOSFETs, these devices are ideal for use in programmable controls, process control, instrumentation and telecommunications replacing TRIAC/driver, mechanical relays and bipolar components.

Optically Isolated Solid State Power Switches
Clare's OPtoMOS line of power products use dual power SCR outputs to produce an alternative to optocoupler and Triac circuits. These switches are robust enough to provide a blocking voltage of up to 600V. In addition, tightly controlled zero-cross circuitry ensures switching of AC loads without the generation of transients. The input and output circuits are optically coupled to provide 3750V of isolation and noise immunity between control and load circuits. Long life and environmental integrity make these power switches ideal to control a variety of AC circuits in industrial environments where electromagnetic interference would disrupt the operation of electromechanical relays.

Line Card Access Switches
Clare's LCAS product family consists of monolithic ICs that contain high voltage switches for tip and ring line break, power ringing, line test access, test in access and ringing generator testing. They provide the necessary functions to replace all 2-form-C electromechanical relays on analogue and combined voice/data line cards found in central office, access and PBX equipment.

Opto-Isolators

Linear Optocouplers and Isolation Amplifiers
OptoMOS Linear Optocouplers feature an infrared LED optically coupled with two phototransistors. One feedback (input) phototransistor is used to generate a control signal that provides a servomechanism to the LED drive current thus compensating for the LEDs nonlinear time and temperature characteristics. The other (output) phototransistor provides an output signal that is linear with respect to the servo LED current.

Single and Dual Optocouplers
Single and dual OptoMOS products provide an optically isolated means of switching control circuits. Each package contains one or two phototransistors that are optically coupled with LEDs. Shunt resistors can be used to adjust the threshold currents required to activate the output circuitry.

Solar Cells

Solar Cells OptoMOS Linear Optocouplers is a revolutionary new product offering that addresses the diverse needs and applications of the growing low power solar energy market. This technology development is based on Clare’s strength in photovoltaic silicon processing and IC packaging. The Solar Cell product family offers open circuit voltage levels of 4V and 8V when activated by natural or artificial light. These voltage levels correlate to common circuit board power supply voltages making the solar cell ideal for battery charging applications and trickle charge power sources. Standard JEDEC SOIC package styles make these Solar Cell products ideal for prototype and large production usage.

Line Interface

Silicon Data Access Arrangements (DAA), Phone Line Interface Telephone Network Interfaces
Connecting to telephone networks for both voice and data applications requires a suitable interface that offers all of the required functionality and that is compatible with the network. Clare offers two types of data access arrangement solutions: LITELINK™ and Cybergate™.

Phone Line Supervision
Clare’s CPC5710Nin SOIC is a versatile building block for designing telephone line monitoring circuits. High common-mode rejection ration (>40dB) makes the CPC5710N an excellent choice for tip/ring lead voltage monitoring, battery presence detection, line-in-use detection (another-phone-off-hook), polarity reversal, display feature (caller ID) signal reception, ring detection monitoring and discrete voice recording.

High-Speed Line Interface Products
Building on years of telecommunications line interface experience and high voltage processing expertise, Clare offers the CPC1465 and the CPC1466. The CPC1465 is specifically designed for the ISDN market and can additionally fulfill the DC Termination requirements for SHDSL interfaces. The CPC1466 is specifically designed for the ADSL/VDSL broadband market in applications where no voice service provides loop current.

Multifunction Relays and Optocouplers
Clare’s OptoMOS® range of multifunction products combines optically isolated discrete component functions in a single package. These products mix and match solid state relays, optocouplers, bridge rectifier, Darlington transistor and zener diode components to create highly functional circuits in a single, small package.

Data Access Arrangements
The Cybergate range is Clare’s turnkey modular DAA solution. The V.34 range provides the circuitry required in a single, completely functional DAA circuit in a 1.07” x 1.07” x 0.4” plastic module. This plug-and-play design allows the user to choose the necessary options to minimise costs, and in turn, maximise value. Standard features include surge protection, transient protection zeners, ring detection, hook-switch circuitry, gyrator circuitry (impedance balancing) and a transformer. Caller ID (CID) and loop current detection are also available as options.

Embedded Modem Modules
Clare’s Embedded Modem Module currently combines a datapump and microcontroller with the Data Access Arrangement (DAA) to deliver and all-in-one solution for transaction-oriented applications. This plug-and-play module provides a total solution complete with transferable FCC registration. It also supports a standard serial V.24 TTL interface to the DTE equipment. The CPC2400E is a low cost modem with a quick handshaking time of 1.6 seconds. This offers a clear advantage for short connection sessions when compared to V.34 and V.90 modems which have a data transfer minimum of 10 seconds.

Central Office

Line Card Access Switches
Clare’s LCAS product family consists of monolithic ICs that contain high voltage switches for tip and ring line break, power ringing, line test access, test in access and ringing generator testing. They provide the necessary functions to replace all 2-form-C electromechanical relays on analogue and combined voice/data line cards found in central office, access and PBX equipment.

Tone Signalling Products

MF Trunk Signalling ICs
Used in MF trunk signalling applications, these products include a range of PCM digital MF transceivers in a variety of formats. Signalling formats include R1 (a law and u law), R2 and R2 China Specification. Also included is an MF R1 tone generator. Already used in thousands of systems worldwide, these products allow the system designer a proven method of providing MF signalling capability.

DTMF Transceivers and Receivers
Clare's range of DTMF Tranceivers and Receivers feature and industry standard pinout and are available in both plastic DIP and SOIC packages. These devices use an inexpensive colour burst crystal. Adjustable guard times provide flexibility for fast operation or additional accuracy in receiving DTMF dialling tones.

Call Progress Detectors and Generators
Clare's range of Call Progress Detectors and Generators provide an inexpensive method of detecting and generating common call progress tones including busy tone, dial tone, call waiting tones and others. The range includes both an inexpensive band detector and precise call tone detectors that detect individual tones. Detectors are available in both DIP and SOIC packages and operate on either 3 or 5 volt supply packages. The call progress generator allows for a simple method of providing dial tone, busy tone and other call progress tones in applications where POTS interface is required such as VOIP or other network gateways.

DC Signalling Devices
Clare DC signalling devices address telephony hook switch monitoring and rotary dial pulse counting while addressing regulatory needs. The line sensing relay devices are ideally suited to work the Dial Pulse Counter Hook Switch Monitor Device (M-959) as well as other Tone products offered by Clare such as the M-8870 DTMF Receiver.

Power Products

FETs
Clare's N-channel depletion mode Clare's OPtoMOS line of power products utilise a proprietary third generation vertical DMOS process. The third generation process realises world class, high voltage MOSFET performance in an economical silicon gate process. The vertical DMOS process yields a robust device for high power applications with high input impedance. These highly reliable FET devices have been used exclusively in Clare’s solid state relays for industrial and telecommunications applications.

High Voltage Driver ICs and Analogue Switches

Clare has many years of experience in high voltage wafer processing for the telecommunications central office market with a 350V BCDMOS Silicon-On-Insulator (SOI) process. Devices from this high voltage process, such as the Line Card Access Switch (LCAS) IC, are a key enabler for high-density line cards offering greater levels of board integration. Building on this success, Clare has launched products to support the high voltage analogue switch and electroluminescent display markets.

Custom ASICs

Clare designs and manufactures analogue and mixed-signal application specific integrated circuits (ASICs). Their designs utilise CMOS, BiCMOS, BiCDMOS and bipolar technologies and span such applications as communications commercial, industrial, medical and military.

Display Driver ICs

Clare has developed a complete range of row and column driver IC products for the emerging Organic Light Emitting Diode (OLED) flat panel display market. OLED technology offers greatly improved viewability compared to conventional LCDs and hold the promise of revolutionising certain segments of the flat panel display market. Like LCDs, OLEDs are row/column addressable.