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| VISHAY LH1525AT/ AAB/ AABTR Vishay Semiconductors 1 Form A Solid State Relays DIP SMD Features * * * * * * * * * * * * * * Extremely Low Operating Current High-speed Operation Isolation Test Voltage 5300 VRMS Current-limit Protection High Surge Capability dc-only Option Clean, Bounce-free Switching Low Power Consumption High-reliability Monolithic Receptor Surface-mountable UL - File No. E52744 CSA - Certification 093751 BSI/BABT Cert. No. 7980 FIMKO Approval S 6 DC 5 S' 4 S S' i179001 1 2 3 Agency Approvals Description The LH1525 relay are SPST normally open switches (1 Form A) that can replace electromechanical relays in many applications. The relay requires a minimal amount of LED drive current to operate, making it ideal for battery powered 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. 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 "Solid State Relays" (Appnote 56) Order Information Part LH1525AAB LH1525AABTR LH1525AT Remarks Tubes, SMD-6 Tape and Reel, SMD-6 Tubes, DIP-6 Document Number 83823 Rev. 1.3, 14-Jul-04 www.vishay.com 1 LH1525AT/ AAB/ AABTR Vishay Semiconductors Absolute Maximum Ratings, Tamb = 25 C VISHAY Stresses in excess of the absolute Maximum Ratings can cause permanent damage to the device. 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. SSR Parameter LED input ratings: continuous forward current LED input ratings: reverse voltage Output operation (each channel): dc or peak ac load voltage Continuous DC load current, bidirectional operation Pin 4 to 6 Continuous DC load current, unidirectional operation Pins 4, 6 (+) to Pin 5 (-) Ambient operating temperature range Storage temperature range Pin soldering temperature Input/output isolation test voltage Power dissipation t = 10 s max t = 1.0 s IL 50 A Test condition Symbol IF VR VL Value 50 8.0 400 Unit mA V V IL IL 125 250 mA mA Tamb Tstg Tsld VISO Ptot - 40 to + 85 - 40 to + 150 260 5300 550 C C C VRMS mW Electrical Characteristics, Tamb = 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 only and are not part of the testing requirements. Input Parameter LED forward current, switch turn-on LED forward current, switch turn-off LED forward voltage Test condition IL = 100 mA, t = 10 ms VL = 350 V, t = 100 ms IF = 1.5 mA Symbol IFon IFoff VF 0.001 0.80 Min Typ. 0.33 0.23 1.16 1.40 Max 0.5 Unit mA mA V Output Parameter ON-resistance: dc Pins 4, 6 (+) to 5 (-) Off-resistance Current limit Off-state leakage current Test condition IF = 1.5 mA, IL = 100 mA IF = 0 mA, VL = 100 V IF = 1.5 mA, t = 5.0 ms, VL = 7.0 V IF = 0 mA, VL = 100 V IF = 0 mA, VL = 400 V Symbol RON RON ROFF ILMT IO IO 170 Min 17 4.25 Typ. 26 7.0 2000 185 0.67 0.096 270 200 1.0 Max 36 8.25 Unit G mA nA A ON-resistance: ac/dc, each pole IF = 1.5 mA, IL = 50 mA www.vishay.com 2 Document Number 83823 Rev. 1.3, 14-Jul-04 VISHAY Parameter Output capacitance Switch offset Test condition IF = 0 mA, VL = 1.0 V IF = 0 mA, VL = 50 V IF = 5.0 mA LH1525AT/ AAB/ AABTR Vishay Semiconductors Symbol CO CO VOS Min Typ. 22 6.42 0.2 Max Unit pF pF V Transfer Parameter Capacitance (input-output) Turn-on time Turn-off time Test condition VISO = 1.0 V IF = 1.5 mA, IL = 50 mA IF = 5.0 mA, IL = 50 mA IF = 1.5 mA, IL = 50 mA IF = 5.0 mA, IL = 50 mA Symbol CIO ton ton toff toff Min Typ. 0.75 1.25 0.22 0.6 0.63 0.9 1.0 Max Unit pF ms ms ms ms Typical Characteristics (Tamb = 25 C unless otherwise specified) 120 100 Load Current ( mA ) 120 LED Forward Current (mA) 100 80 60 40 20 0 T = 8 C T = 25 C T = -40 C 80 60 40 20 0 -40 IFon = 3 to10 mA IFon = 2 mA IFon = 1 mA IFon = 0.5 mA IFon = 0.3 mA -20 0 20 40 60 80 0 ilh1525at_02 0.5 1 1.5 2 17331 Ambient Temperature ( C ) LED Forward Voltage (V) Figure 1. Recommended Operating Conditions Figure 3. LED Forward Current vs. LED Forward Voltage 1.6 LED Reverse Current (uA) LED FORWAD VOLTAGE (V) 1.5 1.4 1.3 1.2 IF = 1 mA 1.1 IF = 2 mA 1.0 -40 IF = 20 mA 10 8 6 4 2 0 85 C 25 C -40 C IF = 50 mA IF = 5 mA IF = 10 mA 0 20 40 60 80 ilh1525at_03 -20 0 20 40 60 80 ilh1525at_01 AMBIENT TEMPERATURE, TA (C) LED Reverse Voltage (V) Figure 2. LED Voltage vs. Temperature Figure 4. LED Reverse Current vs. LED Reverse Voltage Document Number 83823 Rev. 1.3, 14-Jul-04 www.vishay.com 3 LH1525AT/ AAB/ AABTR Vishay Semiconductors VISHAY 300 LED Forward Current for Switch Turn-on (%), Norm. to 25 C 900 700 500 300 100 IL = 100 mA Load Current (mA) 250 200 150 100 50 IF = 1.5 m 0 -40 C 25 C 85 C -100 -40 17330 -20 0 20 40 60 80 ilh1525at_07 0 1 2 3 4 5 6 7 Ambient Temperature ( C ) Load Voltage (V) Figure 5. LED Current for Switch Turn-on vs. Temperature Figure 8. Load Current vs. Load Voltage 40 CHANGE IN CURRENT LIMIT (%) NORMALIZED TO 25 C Change in Ron (%), norm. to 25 C 40 30 20 10 0 -10 -20 -30 -40 -40 ilh1525at_08 30 20 10 0 -10 -20 -30 -40 -40 0 IL = 5mA IL = 50 mA IF = 5 mA, t = 5 ms -20 20 40 60 80 ilh1525at_05 Temperature (C) -20 0 20 40 60 80 AMBIENT TEMPERATURE, TA (C) Figure 6. ON-Resistance vs. Temperature Figure 9. Current Limit vs. Temperature ac/dc ON-RESISTANCE VARIATION (%) NORMALIZED TO DATA SHEET RON SPECIFICATION @ IF = 5 mA 1.21 LED Dropout Voltage (V) 9 8 7 6 5 4 3 2 1 0 0.0 1.0 2.0 3.0 4.0 5.0 LED FORWARD CURRENT (mA) 1.17 1.13 1.09 1.05 1.01 -40 IL = 100 mA -20 0 20 40 60 80 ilh1525at_06 Temperature (C) ilh1525at_09 Figure 7. LED Dropout Voltage vs. Temperature Figure 10. Variation in ON-Resistance vs. LED Current www.vishay.com 4 Document Number 83823 Rev. 1.3, 14-Jul-04 VISHAY LH1525AT/ AAB/ AABTR Vishay Semiconductors 50 40 Capacitance (pF) 0.4 0.35 Insertion Loss (dB) IF = 0mA 0.3 0.25 0.2 0.15 0.1 0.05 RL = 600 IF = 5 mA 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 Applied Voltage (V) 0 100 ilh1525at_13 1000 10000 Frequency (Hz) 100000 1000000 ilh1525at_10 Figure 11. Switch Capacitance vs. Applied Voltage Figure 14. Insertion Loss vs. Frequency 120 100 80 Isolation (dB) Load Current (uA) 60 50 40 30 20 10 0 1000 10000 100000 1000000 ilh1525at_14 60 40 20 0 100 RL = 50 W VP = 10 V 85 C 25 C -40 C IF = 0 mA IL = <50 uA 0 100 200 300 400 500 ilh1525at_11 Frequency (Hz) Switch Breakdown Voltage (V) Figure 12. Output Isolation Figure 15. Switch Breakdown Voltage vs. Load Current 300 250 Leakage Current (nA) 200 150 100 50 0 0 100 85 C 70 C 50 C 25 C CHANGE IN BREAKDOWN VOLTAGE (%) NORMALIZED TO 25 C 8 6 4 2 0 -2 -4 -6 -8 -40 -20 0 20 40 60 80 200 300 400 ilh1525at_12 Load Voltage (V) ilh1525at_15 AMBIENT TEMPERATURE, TA (C) Figure 13. Leakage Current vs. Applied Voltage at Elevated Temperatures Figure 16. Switch Breakdown Voltage vs. Temperature Document Number 83823 Rev. 1.3, 14-Jul-04 www.vishay.com 5 LH1525AT/ AAB/ AABTR Vishay Semiconductors VISHAY 5 4 3 2 1 0 20 ilh1525at_16 45 Change in Ton (%), norm to 25 C Switch Offset Voltage (V) IF = 5 mA 30 15 0 -15 -30 -40 IF = 5 mA IL = 50 mA 30 40 50 60 70 80 90 -20 0 20 40 60 80 Ambient Temperature, TA (C) ilh1525at_19 Temperature (C) Figure 17. Switch Offset Voltage vs. Temperature Figure 20. Turn-on Time vs. Temperature 0.6 Switch Offset Voltage (V) 35 Change in Toff (%), norm. to 25 C 0.5 0.4 0.3 0.2 0.1 0.0 0 5 10 15 20 25 LED Forward Current (mA) 20 5 -10 -25 -40 -40 IF = 5 mA IL = 50 mA -20 0 20 40 60 80 ilh1525at_17 ilh1525at_20 Temperature (C) Figure 18. LED Offset Voltage vs. LED Current Figure 21. Turn-off Time vs. Temperature 2.0 85 C Turn On Time (ms) Turn Off Time (ms) 0.95 0.75 25 C -40 C 0.65 T = 25 C 0.55 0.45 T = 85 C 0.35 0.25 0 ilh1525at_21 0.16 0.12 T = -40 C 0.8 0.4 0.0 0 4 8 12 16 20 LED Forward Current (mA) IL = 50 mA IL = 50 mA 4 8 12 16 20 ilh1525at_18 LED Forward Current (mA) Figure 19. Turn-on Time vs. LED Current Figure 22. Turn-off Time vs. LED Current www.vishay.com 6 Document Number 83823 Rev. 1.3, 14-Jul-04 VISHAY Applications LH1525AT/ AAB/ AABTR Vishay Semiconductors 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 may possibly turn on the LED. Each application should be evaluated, 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. Input Control The LH1525 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 23 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 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 LH1525 relay. R2 is an optional pull-up resistor which pulls the logic level high output (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. VS R2 100 k ANY TTL OR BUFFERED CMOS LOGIC R1 2700 SSR ilh1525at_22 Figure 23. Input Control Circuit Package Dimensions in Inches (mm) DIP Pin One ID. 3 .256 (6.50) .248 (6.30) 4 5 6 2 1 ISO Method A .343 (8.70) .335 (8.50) .039 (1.00) Min. 4 Typ. .020 (.051) Min. .022 (0.55) .018 (0.45) i178001 .300 (7.62) Typ. .150 (3.81) .130 (3.30) 18 Typ. .035 (0.90) .031 (0.80) .100 (2.54) Typ. .014 (.35) .010 (.25) .347 (8.82) .300 (7.62) .150 (3.81) .110 (2.79) Document Number 83823 Rev. 1.3, 14-Jul-04 www.vishay.com 7 LH1525AT/ AAB/ AABTR Vishay Semiconductors Package Dimensions in Inches (mm) VISHAY SMD .343 (8.71) .335 (8.51) Pin one I.D. .030 (.76) .256 (6.50) .248 (6.30) .100 (2.54) R .010 (.25) .070 (1.78) .315 (8.00) min .435 (11.05) .060 (1.52) .050 (1.27) typ. ISO Method A .039 (0.99) min. .052 (1.33) .048 (1.22) .150 (3.81) .130 (3.30) .0098 (.25) .0040 (.10) .100 (2.54) .040 (1.016) .020 (0.508) .395 (10.03) .375 (9.63) .300 (7.62) typ. 3 to 7 18 .012 (0.31) .008 (0.20) 4 .315 (8.00) min. i178002 www.vishay.com 8 Document Number 83823 Rev. 1.3, 14-Jul-04 VISHAY LH1525AT/ AAB/ AABTR Vishay Semiconductors Ozone Depleting Substances Policy Statement It is the policy of Vishay Semiconductor GmbH to 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operatingsystems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances (ODSs). The Montreal Protocol (1987) and its London Amendments (1990) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2. Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency (EPA) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C (transitional substances) respectively. Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use Vishay Semiconductors products for any unintended or unauthorized application, the buyer shall indemnify Vishay Semiconductors against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 (0)7131 67 2831, Fax number: 49 (0)7131 67 2423 Document Number 83823 Rev. 1.3, 14-Jul-04 www.vishay.com 9 |
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