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Delphi Solid State Relays (SSRs)

Delphi Solid State Relays (SSRs)
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ELECTRICAL/ELECTRONIC ARCHITECTURE Delphi Solid State Relays (SSRs) Delphi Solid State Relays (SSRs) provide variable load control through Pulse Width Modulation (PWM). They can be used to replace traditional electromechanical relays and fuses which are found in electrical centers and other devices. Because they are resettable, they provide the advantage of enabling maintenancefree circuit protection. Two versions are available: • • 10 Amp SSR — for variable load control such as motor speed and dimmable lighting applications 40 Amp SSR (up to 120 Amp for 15 seconds) — for higher current loads such as fuel injector heater applications. o Load current feedback feature available All Delphi SSRs are high side switching devices capable of driving loads using PWM. A low active control signal applied to the relay input pin activates the SSR, turning on the load connected to the output pin. Benefits • • • • • • • • • • Eliminates traditional fuses and relays and discrete circuits No mechanical parts to wear out o Pluggable device is easily integrated and serviceable Supports PWM Optimized static electromagnetic compatibility (EMC) Packaged in a modified International Organization for Standardization (ISO) power relay footprint o Modification enables correct assembly to help prevent plugging of standard ISO relay Capable of driving resistive, capacitive and inductive loads Thermal shutdown with restart o Resettable circuit protection eliminates the need to change fuses Solid state switching with no audible noise Provides protection from the following: o Short circuits/overloads o Over voltage (including load dump) o Loss of ground o Electrostatic discharge (ESD) o Reverse battery Robust for use in harsh underhood environments www.delphi.com | © Delphi. All rights reserved. | Delphi 10 Amp Solid State Relay (SSR) ─ bottom side showing lead arrangement/blade configuration Delphi 40 Amp Solid State Relay (SSR) — bottom side showing lead arrangement/blade configuration 1

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Delphi Solid State Relays (SSRs) Delphi 10 Amp Solid State Relay showing active components Delphi 40 Amp Solid State Relay showing active components Typical Applications The Delphi Solid State Relays are suited for a wide range of passenger and commercial vehicle electrical/electronic applications. They are especially suited for variable load control applications, such as those requiring PWM. Application specific versions can also be developed. Availability Delphi Solid State Relays are fully validated. Production for the Delphi Solid State Relays is targeted for the 2012 vehicle model...

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