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| TD3082 Zero-Volt Switching Triac Driver DESCRIPTION The TD3082 consists of a single input LED optically coupled to a zero-volt crossing triac driver. The TD3082 provides high input-to-output isolation and is designed to drive high-powered triacs. Typical uses include interfacing logic level control signals to equipment powered from 110Vac and 220Vac lines. FEATURES APPLICATIONS * * * * * Zero-volt switching 800V blocking voltage High input-to-output isolation High reliability 10mA turn-on current * * * * * * Home appliances Motor control Solid state relays Valve control Solenoids Exercise equipment OPTIONS/SUFFIXES MAXIMUM RATINGS PARAMETER Storage Temperature Operating Temperature Continuous Input Current 6 +/- AC Outpu * * * -H -S -TR High Output Isolation Surface Mount Option Tape and Reel UNIT C C mA mA V mW MIN -55 -40 TYP MAX 125 85 40 400 SCHEMATIC DIAGRAM + Input 1 Transient Input Current Reverse Input Control Voltage Output Power Dissipation 6 500 - Input 2 5 Do Not Use 3 4 -/+ AC Outpu APPROVALS rev 1.0 Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com TD3082 Zero-Volt Switching Triac Driver ELECTRICAL CHARACTERISTICS - 25 PARAMETER INPUT SPECIFICATIONS LED Forward Voltage LED Reverse Voltage Turn-On Current Turn-Off Current V V mA mA 6 10 1.2 12 7 0.5 1.5 If = 10mA Ir = 10uA Io = 100mA UNIT MIN TYP MAX TEST CONDITIONS OUTPUT SPECIFICATIONS Blocking Voltage Continuous Load Current Holding Current Leakage Current On-State Voltage Critical Rate of Rise V mA A A V V/ s 1000 2 1500 250 1 3 Vo = 800V Iin = 10mA 800 100 Io = 1uA Iin = 10mA COUPLED SPECIFICATIONS Isolation Voltage -H Suffix Coupled Capacitance V V pF 2500 3750 2 T = 1 minute T = 1 minute rev 1.0 Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com TD3082 Zero-Volt Switching Triac Driver PERFORMANCE DATA TD3082 Typical Load Current vs. Temperature TD3082 Typical Blocking Voltage Distribution N = 100, Ambient Temperature = 25C Load Current (mA) 120 100 80 60 40 20 0 -40 -20 0 20 40 60 80 Tem perature (C) 50 Device Count 40 30 20 10 0 800 810 820 830 840 850 860 870 Blocking Voltage (V) ZERO-VOLT SWITCHING 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: 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 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. rev 1.0 Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com TD3082 Zero-Volt Switching Triac Driver MECHANICAL DIMENSIONS 6 PIN DUAL IN-LINE PACKAGE 6 PIN SURFACE MOUNT DEVICE END VIEW END VIEW TOP VIEW TOP VIEW BOTTOM VIEW/ BOARD PATTERN BOTTOM VIEW/ BOARD PATTERN rev 1.0 Solid State Optronics, Inc. 1.888.377.4776 www.ssousa.com |
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