LH1541AT1/AAB1/AAB1TR 1 Form A Solid State Relay (Low Capacitance) FEATURES • Low Capacitance Switch (5.0 pF) • l/O Isolation, 5300 VRMS • Extremely High OFF-resistance (100 TΩ) • Load Voltage 350 V • Linear, AC/DC Operation • Clean Bounce Free Switching • Low Power Consumption • High Reliability Monolithic Receptor AGENCY APPROVALS • • • • • UL – File No. E52744 CSA – Certification 093751 BSI/BABT Cert. No. 7980 VDE 0884 Approval FIMKO Approval APPLICATIONS • Instrumentation – Thermocouple Switching – Analog Multiplexing • Reed Relay Replacement • Programmable Logic Controllers • Data Acquisition • Test Equipment Package Dimensions in Inches (mm) DIP DC S' 6 5 4 1 2 3 S Pin One ID. 3 2 1 4 5 6 S S' .256 (6.50) .248 (6.30) .343 (8.70) .335 (8.50) .300 (7.62) Typ. .039 (1.00) Min. .150 (3.81) .130 (3.30) 4° Typ. 18° Typ. .020 (.051) Min. .035 (0.90) .031 (0.80) .022 (0.55) .018 (0.45) .100 (2.54) Typ. .014 (.35) .010 (.25) .150 (3.81) .110 (2.79) .347 (8.82) .300 (7.62) SMD .343 (8.71) .335 (8.51) Pin one I.D. .256 (6.50) .248 (6.30) .050 (1.27) typ. .395 (10.03) .375 (9.63) .300 (7.62) typ. DESCRIPTION These SSRs (LH1541, 1 Form A) are SPST normally open switches which can replace electromechanical relays in many applications. The relays provide a lowcapacitance, high-voltage switch contact with high offresistance and low switch-offset voltage. These characteristics, combined with high-speed actuation, result in an SSR which is ideal for small signal and dc instrumentation applications. The relays are constructed by using a GaAlAs LED for actuation control and an integrated monolithic die for the switch output. The die is comprised of a photodiode array, switch-control circuity, and low-capacitance MOSFET switches. Document Number: 83834 Revision 17-August-01 .039 (0.99) min. .052 (1.33) .048 (1.22) .150 (3.81) .130 (3.30) .0098 (.25) .0040 (.10) 3° to 7° 18° 4° .100 (2.54) .040 (1.016) .020 (0.508) .315 (8.00) min. .012 (0.31) .008 (0.20) Part Identification Part Number Description LH1541AT1 6-pin DIP, Tubes LH1541AAB1 6-pin SMD, Gullwing, Tubes LH1541AAB1TR 6-pin SMD, Gullwing, Tape and Reel www.vishay.com 3–159 Absolute Maximum Ratings, TA=25°C 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. Load Current (mA) 50 40 30 20 IFon = 2.0 mA IFon = 3.0 mA IFon = 4.0 mA IFon = 5.0 to 20 mA 10 0 –40 –20 0 20 40 60 Ambient Temperature (°C) 80 Ambient 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 (VRMS t=1.0 s, IISO=10 µA max) (VISO) .............................. 5300 VRMS LED Continuous Forward Current (IF) .........................................50 mA LED Reverse Voltage (IR≤10 µA) (VR)........................................... 8.0 V DC or Peak AC Load Voltage (IL≤50 µA) (VL) .............................. 200 V Continuous DC Load Current (IL) Bidirectional Operation..............................................................55 mA Unidirectional Operation............................................................ — mA Peak Load Current (t=100 ms) (single shot) (IP) ......................100 mA Output Power Dissipation (continuous) (PDISS)........................ 550 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 only and are not part of the testing requirements. Parameter Sym. Min. Typ. Max. Units Test Conditions LED Forward Current, Switch Turn-on IFon — 0.6 2.0 mA IL=100 mA, t=10 ms LED Forward Current, Switch Turn-off IFoff 0.1 0.5 — mA VL±150 V LED Forward Voltage VF 1.10* 1.19* 1.45* V IF=10 mA RON 70 110 160 Ω IF=5.0 mA, IL=50 mA — — — Input Output ON-resistance ac/dc: Pin 4 (±) to 6 (±) dc: Pin 4, 6 (+) to 5 (±) IF=5.0 mA, IL=100 mA OFF-resistance ROFF 0.5 10000 — GΩ IF=0 mA, VL=±100 V Off-state Leakage Current — — 0.4 200 nA IF=0 mA, VL=±100 V — — 1.0 µA IF=0 mA, VL=±200 V 4.8 — pF IF=0 mA, VL=1.0 V Output Capacitance Pin 4 to 6 — — — 36 — Switch Offset — — 0.15 — V IF=5.0 mA Input/Output Capacitance CISO — 0.8 — pF VISO=1.0 V Turn-on Time ton — 0.12 0.25 ms IF=5.0 mA, IL=50 mA Turn-off Time toff — 0.3 0.25 ms IF=5.0 mA, IL=50 mA IF=0 mA, VL=50 V Transfer * IF=5.0 mA Document Number: 83834 Revision 17-August-01 www.vishay.com 3–160 Typical Performance Characteristics Figure 1. LED Voltage vs. Temperature Figure 4. LED Current for Switch Turn-on vs. Temperature 1.6 LED Forward Voltage (V) 1.5 LED Forward Current for Switch Turn-on (%), Normalized to 25°C 160 IF=50 mA IF=20 mA 1.4 1.3 1.2 IF=1.0 mA IF=2.0 mA 1.1 1.0 –40 IF=5.0 mA IF=10 mA –20 0 20 40 60 Ambient Temperature (°C) 90 60 30 0 –30 –20 0 20 40 60 80 Ambient Temperature (°C) Figure 5. On-resistance vs. Temperature 50 40 IF= 5.0 mA t = 5.0 ms VL= SEE ELEC. CHAR. 30 20 40 Change in ON-resistance (%) Normalized to 25 °C Change in Current Limit (%) Normalized to 25°C 120 –60 –40 80 Figure 2. Current Limit vs. Temperature 10 0 –10 –20 –30 –40 –40 IL= 50 mA 150 IL= 50 mA 30 20 10 0 –10 –20 –30 –20 0 20 40 60 –40 –40 80 –20 Ambient Temperature (°C) 0 20 40 60 80 Ambient Temperature (°C) Figure 3. LED Dropout Voltage vs. Temperature Figure 6. Switch Capacitance vs. Applied Voltage 6.0 1.20 5.0 1.15 TYP. Capacitance (pF) LED Forward Voltage (V) IL= 100 mA 1.10 MIN. 1.05 1.00 0.95 –40 4.0 3.0 2.0 1.0 –20 0 20 40 Ambient Temperature (°C) Document Number: 83834 Revision 17-August-01 60 80 0.0 0 10 20 30 40 50 60 70 80 90 100 Applied Voltage (V) www.vishay.com 3–161 Figure 7. Insertion Loss vs. Frequency Figure 10. Switch Offset Voltage vs. Temperature 2.00 3.5 1.75 3.0 IF= 5.0 mA Switch Offset Voltage (µV) RL= 600 Ω Insertion Loss (dB) 1.50 1.25 1.00 0.75 0.50 2.5 2.0 1.5 1.0 0.5 0.25 0 102 103 104 0 105 20 30 40 Figure 8. Leakage Current vs. Applied Voltage 80 90 270 90 240 IF= 0 mA TA= 25 °C 80 Off-state Leakage Current (pA) Off-state Leakage Current (pA) 70 Figure 11. Leakage Current vs. Applied Voltage at Elevated Temperatures 100 70 60 50 40 30 20 10 0 50 100 150 200 250 300 85°C 210 180 150 120 70°C 90 60 50°C 30 0 350 400 0 20 40 Load Voltage (V) 100 120 140 160 180 200 Change in Breakdown Voltage (%) Normalized to 25°C 8 80 60 VP=10 V RL=50 Ω 20 0 102 80 Figure 12. Switch Breakdown Voltage vs. Temperature 100 40 60 Load Voltage (V) Figure 9. Output Isolation Isolation (dB) 60 Ambient Temperature (°C) Frequency (Hz) 0 50 103 104 105 Frequency (Hz) Document Number: 83834 Revision 17-August-01 106 107 6 4 2 0 –2 –4 –6 –8 –10 –40 –20 0 20 40 60 80 Ambient Temperature (°C) www.vishay.com 3–162 Figure 16. Turn-on Time vs. LED Current 0.6 1.50 0.5 1.25 Turn-on Time (ms) Switch Offset Voltage (µV) Figure 13. Switch Offset Voltage vs. LED Current 0.4 0.3 0.2 1.00 0.75 +85°C +25°C 0.50 –40°C 0.1 0.25 0 0 5 10 15 20 0 25 0 5 LED Forward Current (mA) 15 20 LED Forward Current (mA) Figure 14. Turn-on Time vs. Temperature Figure 17. Turn-off Time vs. LED Current 40 70 60 IF= 5.0 mA IL= 50 mA 50 –40°C 30 40 Turn-on Time (ms) Change in Turn-on Time (%) Normalized to 25°C 10 30 20 10 0 –10 +85°C +25°C 20 10 –20 –30 –40 0 –40 –20 0 20 40 60 80 Ambient Temperature (°C) 0 10 20 30 40 50 LED Forward Current (mA) Figure 15. Turn-off Time vs. Temperature Change in Turn-off Time (%) Normalized to 25°C 160 140 120 IF= 5.0 mA IL= 50 mA 100 80 60 40 20 0 –20 –40 –60 –80 –40 –20 0 20 40 60 80 Ambient Temperature (°C) Document Number: 83834 Revision 17-August-01 www.vishay.com 3–163