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| S110 1 Form A Solid State Relay DESCRIPTION The S110 is a multipurpose, 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 circuit on the output side - 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. FEATURES APPLICATIONS * * * * * * * Inverse parallel SCR output High input to output Isolation High transient immunity Input to output Isolation exceeds 2500V AC 400V maximum Blocking Voltage 0.8A maximum Continuous Load Current Zero-volt switching * * * * Interface between microprocessors and logic circuits Drive small lamps / solenoids Medical electronic equipment Communication equipment OPTIONS / SUFFIXES MAXIMUM RATINGS * * * * -H -S High Output Isolation Surface Mount Option PARAMETER Storage Temperature Operating Temperature Continuous Input Current UNIT C C mA mA V V mW MIN - 55o - 40o 6.0 - TYP - MAX 125o 85o 40 400 + 400 -TR Tape and Reel -X 300W Input Resistor SCHEMATIC DIAGRAM Transient Input Current Reverse Input Control Voltage Blocking Voltage Output Power Dissipation 500 APPROVALS * * BABT CERTIFICATE # 608203: BS EN 60950, BS EN 41003, BS EN 60065 UL FILE # E90096 133 Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com S110 1 Form A Solid State Relay ELECTRICAL CHARACTERISTICS - 25OC PARAMETER UNIT MIN TYP MAX TEST CONDITIONS INPUT SPECIFICATIONS LED Forward Voltage LED Reverse Voltage Must Operate Current Reverse Current Junction Capacitance Input Resistor V V mA A pF 6.0 5.0 1.2 12 2.5 250 1.5 5.0 10.0 300 If = 10mA Ir = 10A Full Load, Resistive V r = 5.0V V f = 0V - OUTPUT SPECIFICATIONS Blocking Voltage Continuous Load Current Surge Current Rating Holding Current On-Voltage Voltage Across Load at Turn-On Leakage Current Thermal Resistance Power Factor Critical Rate of Rise (dV/dt) o V A A mA V V A C/W V/S 0.3 400 100 150 - 400 0.8 5.0 10 1.2 5.0 250 - IO = 10A Iin = 5.0mA T = 10S Io = 0.8A If = 5.0mA V O = 250V - COUPLED SPECIFICATIONS Isolation Voltage -H Suffix Isolation Resistance Coupled Capacitance V pF 2500 3750 1011 6.0 T = 1 Minute - Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com 134 S110 1 Form A Solid State Relay PERFORMANCE DATA S110 L oa d C urre nt D e ratin g C u rve S110 T yp ic al B loc king V o ltag e D is tribu tio n (N = 100 Ambient Temperature = 25 C ) o 1.2 Load Current (A) Device Count 50 40 30 20 10 0 -40 -20 0 20 40 o 1.0 0.8 0.6 0.4 0.2 0.0 60 80 100 T emp era tu re ( C ) 425 450 475 500 525 550 575 600 B lo c kin g V o ltag e (V ) ZERO-VOLT SWITCHING The S110 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 shown. Figure 1 shows a typical 60Hz, 120Vac signal with a corresponding relay input signal: 1 Relay Input Signal is Turned On. 5 Relay Input Signal is Turned Off. Input Signal 2 SCR #1 Turns On when 5V threshold is reached. 6 SCR #1 and Relay Turn Off at Zero Volts. 5V Threshold 3 SCR #1 Turns Off, SCR #2 Turns On at Zero Volts. 4 SCR #2 Turns Off, SCR #1 Turns On at Zero Volts. Figure 1: 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 (Stage 2) is reached, SCR #1 (Designated as the SCR which controls positive AC voltage) turns on. However, SCR #1 only stays on 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) will turn on. Likewise, at the next zero cross (Stage 4), SCR #2 will turn off and SCR #1 will turn back on. Even though the input signal is terminated at Stage 5, the relay will still continue to conduct (typical SCR behavior) until Stage 6, when SCR #1 crosses zero and turns off. Please note that Turn On can likewise begin on the negative phase of the AC cycle with a -5V threshold as well, even though only the positive phase is shown here. 135 Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com S110 1 Form A Solid State Relay MECHANICAL DIMENSIONS 8 PIN DUAL IN-LINE PACKAGE 8 PIN SURFACE MOUNT DEVICE END VIEW END VIEW TOP VIEW TOP VIEW BOTTOM VIEW / BOARD PATTERN BOTTOM VIEW / BOARD PATTERN Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com 136 |
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