SP646 SOLIDSTATE | Alldatasheet
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Technical content
1 Form A
The SP646 is a bi-directional, single-pole, single-throw, normally open multipurpose relay. The circuit is composed of one LED on the input side which activates an optically coupled IC on the output - controlling the firing angle of two back-to-back SCRs. This circuit assures no false triggering under most adverse conditions, and a tight zero-volt window not exceeding 5V.
DESCRIPTION
OPTIONS/SUFFIXES* SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS* APPROVALS Zero-Volt Cross Switching• High transient immunity• 400V blocking voltage• 1.2A maximum continuous current• High input-to-output isolation• Solid state reliability• Valve control• Solenoids• Home appliances• Metering equipment• Heating elements• High Input-to-Output Isolation Voltage• -H NOTE: Suffixes listed above are not included in marking on device for part number identification. PARAMETER UNIT MIN TYP MAX Storage Temperature °C -55 120 Operating Temperature °C -40 85 Continuous Input Current mA 40 Transient Input Current mA 400 Reverse Input Control Voltage V 6 Output Power Dissipation W 1.2 *The values indicated are absolute stress ratings. Functional operation of the device is not implied at these or any conditions in excess of those defined in electrical characteristics section of this document. Exposure to Absolute Ratings may cause permanent damage to the device and may adversely affect reliability. UL / C-UL Approved, File #E117933• BABT Certificate #607837• Page 1 of 5 SP646 rev 1.41 (10/23/2007) © 2007 Solid State Optronics • San José, CA
ELECTRICAL CHARACTERISTICS - 25°C PARAMETER UNIT MIN TYP MAX TEST CONDITIONS INPUT SPECIFICATIONS LED Forward Voltage V 1.2 1.5 If = 10mA LED Reverse Voltage V 61 2 Ir = 10uA Turn-On Current (Resistive Load) m 5 6.5 Io = 1.2AA Turn-On Current (Inductive Load) m 10 12 Io = 300uA (AC)A Junction Capacitance p 5 Vf = 0VF OUTPUT SPECIFICATIONS Blocking Voltage V 400 Io = 400uA Continuous Load Current A 1.2 If = 6.5mA Surge Current Rating A 10 T = 16ms Holding Current m 10A On-Voltage V 1.2 Io = 1.2A Zero Cross Turn-On Threshold Voltage V 5 If = 6.5mA Leakage Current µ 100 250 Vo = 250VA Thermal Resistance ° 80C/W Power Factor 0.3 See Note 1 below Critical Rate of Rise (dV/dt) V 400/ µ s COUPLED SPECIFICATIONS Isolation Voltage V 2500 T = 1 minute -H Suffix V 3750 T = 1 minute Isolation Resistance G 100Ω Coupled Capacitance p 6F Page 2 of 5 SP646 rev 1.41 (10/23/2007) © 2007 Solid State Optronics • San José, CA Note 1: Snubber circuits may be required for lower power factors
425 450 475 500 525 550 575 600 Blocking Voltage (V) Device Count SP646 Typical Blocking Voltage Distribution N = 100, Ambient Temperature = 25°C 500 1000 1500 -40 -20 0 20 40 60 80 Temperature (C) Load Current (mA) SP646 Maximum Load Current vs. Temperature 5 V Threshold Input Signal SCR #1 Turns On when 5V threshold is reached. SCR #1 Turns Off, SCR #2 Turns On at Zero Volts. SCR #2 Turns Off, SCR #1 Turns On at Zero Volts. SCR #1 and Relay Turn Off at Zero Volts. 2 6
1 Relay Input Signal is
Turned On. Relay Input Signal is Turned Off. This solid state relay has been designed with a driver circuit that controls the operation of two back-to-back silicon controlled rectifiers (SCRs), each responsible for one half of the AC cycle. If an AC signal is examined, the turn on, turn off and zero-volt switching can be seen. Figure 1 shows a typical 60 Hz, 120Vac signal with a corresponding relay input signal: ZERO-VOLT SWITCHING Figure 1 shows the sequence of zero-volt switching operation. At Stage 1, an input signal is applied to the relay. The relay will not turn on until the threshold voltage of 5V is reached. Once this point is reached (Stage 2), SCR #1 (designated as the SCR which controls positive AC voltage) turns on. However, SCR #1 only conducts for an instant, as the cycle quickly crosses zero. At this point (Stage 3), SCR #1 will turn off and SCR #2 (negative AC voltage) turns on. Likewise, at the next zero cross (Stage 4), SCR #2 will turn off and SCR #1 conducts again. Even though the input signal is terminated at Stage 5, the relay will continue to conduct (typical SCR behavior) until Stage 6, when SCR #1 crosses zero and ceases to conduct. Please note that turn on can likewise begin on the negative phase of the AC cycle with a -5V threshold, though only the positive phase is shown here. Page 3 of 5 SP646 rev 1.41 (10/23/2007) © 2007 Solid State Optronics • San José, CA
16 PIN SINGLE IN-LINE PACKAGE
rev 1.41 (10/23/2007) © 2007 Solid State Optronics • San José, CA
Solid State Optronics (SSO) makes no warranties or representations wi th regards to the completeness and accuracy of this docume nt. SSO reserves the right to make changes to product description, specifications at any time without further notice. SSO shall not assume any liability arising out of the application or use of any product or circuit described herein. Neither ci rcuit patent licenses nor indemnity are expressed or implied. Except as specified in SSO's Standard Terms & Conditions, SSO disclaims liability for consequential or other damage, and we mak e no other warranty, expressed or implied, including merchantability and fitness for particular use. DISCLAIMER LIFE SUPPORT POLICY SSO does not authorize use of its devices in life support applications wherein failure or malfunction of a device may lead to p ersonal injury or death. Users of SSO devices in life suppor t applications assume all risks of such use and agree to indemnify SSO against any an d all damages resulting from such use. Life support devices are defined as devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perf orm when used properly in accordance with instructions for u se can be reasonably expected to result in significant injury to the user, or (d) a crit ical component in any component of a life support device or system whose failure can be reasonably expected to c ause failure of the life support device or sys tem, or to affect its safety or effe ctiveness. Page 5 of 5 SP646 rev 1.41 (10/23/2007) © 2007 Solid State Optronics • San José, CA