LH1526AB/AAC/AACTR Dual 1 Form A Solid-State Relays FEATURES • Dual Channel Form A • Extremely Low Operating Current • High-speed Operation • 5300 VRMS I/O Isolation • Current-limit Protection • High Surge Capability • Linear, ac/dc Operation • dc-only Option • Clean, Bounce-free Switching • Low Power Consumption • High-reliability Monolithic Receptor • Surface-mountable • Flammability; UL94,VØ Package Dimensions in Inches (mm) DIP pin one ID S1 4 1 2 S1' S2 8 7 S2' 6 5 .268 (6.81) .255 (6.48) 5 6 7 8 1 .390 (9.91) .379 (9.63) .045 (1.14) .030 (0.76) 2 3 S1 S1' S2 S2' 4 .300 (7.62) .031 (0.79) typ. 4° typ. .150 (3.81) .130 (3.30) .050 (1.27) .022 (.56) .018 (.46) AGENCY APPROVALS • UL – File No. E52744 • CSA – Certification 093751 • BSI/BABT Cert. No. 7980 APPLICATIONS • General Telecom Switching – Telephone Line Interface – On/off Hook – Ring Relay – Break Switch – Ground Start • Battery-powered Switch Applications • Industrial Controls – Microprocessor Control of Solenoids, Lights, Motors, Heaters, etc. • Programmable Controllers • Instrumentation • See Application Note 56 3 10° .035 (.89) .020 (.51) .250 (6.35) .230 (5.84) 3°–9° .012 (.30) .008 (.20) .100 (2.54) typ. .130 (3.30) .110 (2.79) SMD Pin one I.D. .268 (6.81) .255 (6.48) .390 (9.91) .379 (9.63) .045 (1.14) .030 (0.78) 4° typ. .050 (1.27) typ. .031 (.79) typ. .150 (3.81) .130 (3.30) Radius .395 (10.03) .375 (9.52) .312 (7.80) .298 (7.52) .008 (.25) .004 (.10) .040 (1.02) .020 (.51) .100 (2.54) typ. 10° .315 (8.00) typ. 3° to 7° .010 (2.54) typ. Part Identification DESCRIPTION Part Number Description The LH1526 relay is two SPST normally open switches that can replace electromechanical relays in many applications. The relays require a minimal amount of LED drive current to operate, making it ideal for batterypowered and power consumption sensitive applications. The relay is constructed using a GaAIAs LED for actuation control and an integrated monolithic die for the switch output. The die, fabricated in a high-voltage dielectrically isolated technology, comprised of a photodiode array, switch-control circuitry, and MOSFET switches. In addition, the relay employs current-limiting circuitry, enabling it to pass FCC 68.302 and other regulatory surge requirements when overvoltage protection is provided. The relay can be configured for ac/dc or dc-only operation. LH1526AB 8-pin DIP, Tubes LH1526AAC 8-pin SMD, Tubes LH1526AACTR 8-pin SMD, Tape and Reel 2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA www.infineon.com/opto • 1-888-Infineon (1-888-463-4636) 3–114 March 26, 2000-17 Absolute Maximum Ratings, TA=25°C (except where noted) Recommended Operating Conditions Stresses in excess of the absolute Maximum Ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute Maximum Ratings for extended periods of time can adversely affect reliability. 120 LOAD CURRENT (mA) 100 80 60 40 20 IF = 0.3 mA IF = 1.0 mA IF = 1.5 mA IF = 2.0 mA IF = 2.25 mA TO 20 mA 0 –40 –20 0 20 40 60 80 AMBIENT TEMPERATURE, TA (°C) Ambient Operating Temperature Range, TA ................... –40° to +85°C Storage Temperature Range, Tstg ................................. –40° to +150°C Pin Soldering Temperature, t=10 s max, TS ................................ 260°C Input/Output Isolation Voltage, t=1.0 s, VISO ........................5300 VRMS LED Input Ratings: Continuous Forward Current, IF...............................................50 mA Reverse Voltage, VR ................................................................... 8.0 V Output Operation (each channel) dc or Peak ac Load Voltage, IL≤50 µA, VL ................................. 400 V Continuous dc Load Current, IL Unidirectional Operation Pins 4, 6 (+) to Pin 5 (–)..........................................................250 mA Two Pole Operation, IL ..............................................................100 mA Power Dissipation, PDISS ......................................................... 600 mW Electrical Characteristics, TA=25°C Minimum and maximum values are testing requirements. Typical values are characteristics of the device and are the result of engineering evaluations. Typical values are for information purposes only and are not part of the testing requirements. Parameter Symbol Min. Typ. Max. Unit Test Condition LED Forward Current for Switch Turn-on IFon — 0.3 0.5 mA IL=100 mA, t=10 ms LED Forward Current for Switch Turn-off IFoff 0.01 0.1 — mA VL=±350 V, t=100 ms LED Forward Voltage VF 0.80 1.15 1.40 V IF=1.5 mA 17 25 36 Ω IF=1.5 mA, IL=±50 mA Input Output ON-resistance: ac/dc, each pole RON OFF-resistance ROFF — 5000 — GΩ IF=0 mA, VL=±100 V Current Limit ILMT 170 210 270 mA IF=1.5 mA, t=5.0 ms VL=7.0 V Output Off-state Leakage Current — — — 0.04 — 200 1.0 nA µA IF=0 mA, VL=±100 V IF=0 mA, VL=±400 V Output Capacitance — — — 37 13 — — pF pF IF=0 mA, VL=1.0 V IF=0 mA, VL=50 V Switch Offset — — 0.25 — µV IF=5.0 mA Input/Output Capacitance CISO — 0.8 — pF VISO=1.0 V Turn-on Time ton — — 1.00 0.5 — 1.0 ms ms IF=1.5 mA, IL=50 mA IF=5.0 mA, IL=50 mA Turn-off Time toff — — 0.20 0.4 — 0.9 ms ms IF=1.5 mA, IL=50 mA IF=5.0 mA, IL=50 mA Transfer 2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA www.infineon.com/opto • 1-888-Infineon (1-888-463-4636) LH1526AB/AAC/AACTR 3–115 March 26, 2000-17 Typical Performance Characteristics Figure 4. LED Dropout Voltage vs. Temperature Figure 1. LED Voltage vs. Temperature 1.20 1.5 LED FORWARD VOLTAGE (V) LED FORWAD VOLTAGE (V) 1.6 IF = 50 mA IF = 20 mA 1.4 1.3 1.2 1.1 IF = 1 mA IF = 2 mA 1.0 –40 IF = 5 mA IF = 10 mA –20 0 20 40 60 AMBIENT TEMPERATURE, TA (°C) 1.00 0.90 0.80 0.70 –40 80 0 20 40 60 80 Figure 5. Current Limit vs. Temperature 40 300 IF = 5 mA, t = 5 ms CHANGE IN CURRENT LIMIT (%) NORMALIZED TO 25 °C IL = 100 mA 200 100 0 –100 –40 –20 0 20 40 60 30 20 10 0 –10 –20 –30 –40 –40 80 AMBIENT TEMPERATURE, TA (°C) 0 20 40 60 80 Figure 6. Variation in ON-Resistance vs. LED Current ac/dc ON-RESISTANCE VARIATION (%) NORMALIZED TO DATA SHEET RON SPECIFICATION @ IF = 5 mA 50 IL = 50 mA 40 30 20 10 0 –10 –20 –30 –40 –40 –20 AMBIENT TEMPERATURE, TA (°C) Figure 3. ON-Resistance vs. Temperature CHANGE IN ON-RESISTANCE (%) NORMALZED TO 25 °C –20 AMBIENT TEMPERATURE, TA (°C) Figure 2. LED Current for Switch Turn-on/off vs. Temperature LED FORWARD CURRENT FOR SWITCH TURN-0N/OFF (%) NORMALIZED TO 25 °C 1.10 9 8 7 6 5 4 3 2 1 0 –20 0 20 40 60 0.0 80 1.0 2.0 3.0 4.0 5.0 LED FORWARD CURRENT (mA) AMBIENT TEMPERATURE, TA (°C) 2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA www.infineon.com/opto • 1-888-Infineon (1-888-463-4636) LH1526AB/AAC/AACTR 3–116 March 26, 2000-17 Figure 7. Switch Capacitance vs. Applied Voltage Figure 10. Insertion Loss vs. Frequency 70 INSERTION LOSS (dB) 0.6 CAPACITNCE (pF) 60 50 40 30 RL = 600 Ω 0.5 0.4 0.3 0.2 20 0.1 10 0.0 0 0 20 40 60 80 100 102 103 APPLIED VOLTAGE (V) Figure 11. Leakage Current vs. Applied Voltage 100 100 OFF-STATE LEAKAGE CURRENT (pA) VP =10 V RL =50 Ω 80 ISOLATION (dB) 105 FREQUENCY (Hz) Figure 8. Output Isolation 60 40 20 102 103 104 105 106 IF = 0 mA TA = 25 °C 90 80 70 60 50 40 30 20 10 0 0 107 0 50 100 FREQUENCY (Hz) CHANGE IN BREAKDOWN VOLTAGE (%) NORMALIZED TO 25 °C 85 °C 2.5 2.0 1.5 70 °C 1.0 50 °C 0.5 0.0 0 50 100 150 200 250 200 250 300 350 400 Figure 12. Switch Breakdown Voltage vs. Temperature 3.5 3.0 150 LOAD VOLTAGE (V) Figure 9. Leakage Current vs. Applied Voltage at Elevated Temperatures OFF-STATE LEAKAGE CURRENT (nA) 104 300 350 400 8 6 4 2 0 –2 –4 –6 –8 –40 –20 0 20 40 60 80 AMBIENT TEMPERATURE, TA (°C) LOAD VOLTAGE (V) 2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA www.infineon.com/opto • 1-888-Infineon (1-888-463-4636) LH1526AB/AAC/AACTR 3–117 March 26, 2000-17 Figure 13. Switch Offset Voltage vs. Temperature Figure 16. LED Offset Voltage vs. LED Current 0.6 5 IF = 5 mA 0.5 4 0.4 (µV) (µA) 3 0.3 2 0.2 1 0.1 0.0 0 20 30 40 50 60 70 80 0 90 AMBIENT TEMPERATURE, TA (°C) Figure 14. Turn-On Time vs. Temperature CHANGE IN TURN-OFF TIME (%) NORMALIZED TO 25 °C CHANGE IN TURN-0N TIME (%) NORMALIZD TO 25 °C 15 20 25 15 IF = 5 mA IL = 50 mA 40 30 20 10 0 –10 –20 –30 –40 –40 10 Figure 17. Turn-Off Time vs. Temperature 60 50 5 LED FORWARD CURRENT (mA) IF = 5 mA IL = 50 mA 10 5 0 –5 –10 –15 –20 0 20 40 60 –40 80 –20 AMBIENT TEMPERATURE, TA (°C) (mA) 0 20 40 60 80 AMBIENT TEMPERATURE, TA (°C) Figure 15. Turn-On Time vs. LED Current Figure 18. Turn-off Time vs. LED Current 3.0 3.0 2.4 2.4 TURN-OFF TIME (ms) TURN-ON TIME (ms) 85 °C 1.8 85° 25° 1.2 –40° 0.6 0.0 25 °C 1.8 1.2 –40 °C 0.6 0.0 0 4 8 12 16 20 0 LED FORWARD CURRENT (mA) 4 8 12 16 20 LED FORWARD CURRENT (mA) 2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA www.infineon.com/opto • 1-888-Infineon (1-888-463-4636) LH1526AB/AAC/AACTR 3–118 March 26, 2000-17 Applications Input Control The LH1526 low turn-on current SSR has highly sensitive photodetection circuits that will detect even the most minute currents flowing through the LED. Leakage current must be considered when designing a circuit to turn on and off these relays. Figure 19 shows a typical logic circuit for providing LED drive current. R1 is the input resistor that limits the amount of current flowing through the LED. For 5.0 V operation, a 2700 Ω resistor will limit the drive current to about 1.4 mA. Where high-speed actuation is desirable, use a lower value resistor for R1. An additional RC peaking circuit is not required with the LH1526 relay. R2 is an optional pull-up resistor which pulls the logic level high ouput (VOH) up toward the VS potential. The pull-up resistance is set at a high value to minimize the overall current drawn from the VS. The primary purpose of this resistor is to keep the differential voltage across the LED below its turn-on threshold. LED dropout voltage is graphed vs. temperature in the Typical Performance Characteristics section. When the logic gate is high, leakage current will flow through R2. R2 will draw up to 8 mA before developing a voltage potential which might possibly turn on the LED. Many applications will operate satisfactorily without a pull-up resistor. In the logic circuit in Figure 1 the only path for current to flow is back into the logic gate. Logic leakage is usually negligible. Each application should be evaluated, however, over the full operating temperature range to make sure that leakage current through the input control LED is kept to a value less than the minimum LED forward current for switch turn-off specification. Figure 19. Input Control Circuit VS R2 100 kΩ ANY TTL OR BUFFERED CMOS LOGIC R1 2700 Ω SSR 2001 Infineon Technologies Corp. • Optoelectronics Division • San Jose, CA www.infineon.com/opto • 1-888-Infineon (1-888-463-4636) LH1526AB/AAC/AACTR 3–119 March 26, 2000-17