Model No. LY252 Photocoupler Features ‧SOP package 4 Pin type in miniature design (4.4×4.3×2.0mm / .173×.169×.083inch) ‧High Repetitive Peak Off-State Voltage VDRM=400V min. ‧1500Vrms Input/Output isolation ‧Tape & Reel version available Applications ‧Motor Controls ‧E.M. Contactors ‧Lighting Controls ‧Temperature Controls ‧Solid State Relays ‧Solenoid/ Valve Controls Letex Technology Corp. Model No. LY252 Photocoupler Specifications Part Name: LY252 Absolute Maximum Ratings (Ambient Temperature: 25℃) Item Symbol Value Units Continuous LED Current IF 50 mA Peak LED Current IFP 1000 mA LED Reverse Voltage VR 6 V Input Power Dissipation PD 70 mW VDRM 400 V Peak Repetitive Surge Current ITSM 1 A PW=100us, 120pps Peak Load Current IPeak 0.6 A 100ms(1 pulse) Output Power Dissipation Pout 300 mW Total Power Dissipation PT 330 mW I/O Breakdown Voltage Viso 1500 Vrm Operating Temperature Topr -40 to +100 ℃ Storage Temperature Tstg -50 to +120 ℃ Pin Soldering Temperature Tsol 260 ℃ Input Off-State Output Terminal Voltage Output Note f=100Hz, duty=1% RH=60%, 1min 10 sec max. Electrical Specifications (Ambient Temperature: 25℃) Item Input TYP. MAX. Unit s Conditions VF 1.2 1.4 V IF=10mA Reverse Current IR 0.05 10 µA VR=6V IDRM1 500 nA Peak On-State Voltage, Either Direction VTM 3.0 V Circuit rate of Rise of Off-State Voltage dv/dt Direction LED Trigger Current, Current Required to Latch Output, Either Direction Coupled MIN. LED Forward Voltage Peak Blocking Current, Either Output Symbol Holding Current, Either Direction Turn-On Time 600 1500 IFT 17 IH 400 Ton 8 VDRM=400V ITM=100mA Peak V/µs 15 Main Terminal mA Voltage= 3V µA 20 Vp=9V,IF=20mA, µs RL=100Ω IF=Rated IFT, Zero Inhibit Voltage VINH 5 20 MT1-MT2 Voltage ms above which device Crossing will not trigger. Leakage in Inhibited State IDRM2 500 IF=Rated IFT, Rated µA VDRM, Off State Letex Technology Corp. Model No. LY252 Outline Dimensions 4 1 3 2 Unit : mm inch Tolerance: 0.1 .004 Schematic 4 3 ZERO CROSSING CIRCUIT 1 1. 2. 3. 4. 2 LED Anode LED Cathode Main Terminal Main Terminal Letex Technology Corp. Model No. LY252 Reference Data On-state current Vs. Ambient temperature Forward current Vs. Ambient temperature Minimum trigger current Vs. Ambient temperature 60 10 MInimum trigger current (mA) 50 40 On-state current (A) Forward current (mA) 0.10 30 20 10 0 0.07 0.05 0 -30 0 25 50 75 100 125 4 2 0 25 50 75 100 125 20 Ambient temperature (℃) 60 80 1.0 VP =6V ITM =100mA 25℃ 50℃ 2.6 Forward current (mA) Ta = 75℃ 0℃ 100 On-state voltage (V) 25℃ 50 20 10 5 100 Holding current Vs. Ambient temperature 3.0 500 40 Ambient temperature (℃) On-state voltage Vs. Ambient temperature Forward current Vs. Forward voltage Forward current (mA) 6 0 -25 Ambient temperature (℃) 200 VP = 6V RL = 100Ω 8 2.2 1.8 0.1 1.4 2 1 1.0 0 0.5 1.0 1.5 2.0 2.5 3.0 0.01 20 Forward voltage (V) 40 60 80 100 Turn-on time Vs. Forward current 100 4 2 80 60 40 20 0 0 10 20 30 40 50 Forward current (mA) 80 100 1000 Repetitive peak off-state current (nA) On-state current (mA) 6 60 Repetitive peak off-state current Vs. Ambient temperature VP = 6V RL = 100Ω 8 40 Ambient temperature (℃) On-state current Vs. On-state voltage 10 Turn-on time (μs ) 20 Ambient temperature (℃) 100 10 1 0 0.5 1.0 1.5 2.0 On-state voltage (V) 2.5 3.0 20 40 60 80 100 Ambient temperature (℃) static dv/dt test circuit +400 Vdc RTEST R=10k CTEST PLUSE INPUT MERCURY WETTED RELAY APPLIED VOLTAGE WAVEFORM x100 SCOPE PROBE D.U.T Vmax = 400V 252 V 0 VOLTS dv/dt = RC 0.63 Vmax 378 = RC RC Letex Technology Corp. Model No. LY252 Taping Specifications for Surface Mount Devices Label sticking position Direction of feed Unit : mm Recommended Mounting Pad (Unit: mm / Tolerance: ±0.1) Marking (Each photo MOS relay shall be marked with the following information) Brand Name LETEX LY252 321 Part Name Date Code 321 Note: Weeks Monthly Year 1. There shall be leader of 230 mm minimum which may consist of carrier and or cover tape follower by a minimum of 160 mm of carrier tape sealed with cover tape. 2. There shall be a minimum of 160 mm of empty component pockets sealed with cover tape. 3. Devices are pockets in accordance with EIA standard EIA-481-A and specifications given above. 4. Packaging: 2,000pcs per reel, 2 reel per box, 5 boxes per carton. Letex Technology Corp.