Photo DMOS-FET Relay Description The LT314 is a miniature 2-Form A solid state relay in a 8 pin SOP package that employs optically coupled MOSFET technology to provide 1500V of input to output isolation. The Input of optical coupler been controlled by a highly efficient GaAlAs infrared LED and MOS FETs on the output side. Features ‧SOP package 8 Pin type in miniature design (4.4×9.4×2.0mm / .173×.37×.083inch) ‧Low driver power requirements (TTL/CMOS Compatible) ‧High reliability ‧Arc-Free with no snubbing circuits ‧1500Vrms Input/Output isolation ‧Tape & Reel version available Applications ‧Telecommunications (PC, Electronic notepad) ‧Measuring and Testing equipment ‧Industrial control ‧Security equipments ‧High speed inspection machine ‧Data communication equipment ‧Factory automotive equipments 1 Letex Technology Corp. Photo DMOS-FET Relay Specifications Part Name: LT314 (Load voltage: 80V / Load current: 120mA) 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 5 V Input Power Dissipation PIn 75 mW Load Voltage VL 80 V(AC peak or DC) Load Current IL 120 mA Peak Load Current IPeak 0.6 A Output Power Dissipation Pout 200 mW Total Power Dissipation PT 250 mW I/O Breakdown Voltage VI/O 1500 Operating Temperature TOpr -40 to +85 Vrm ℃ Storage Temperature TStg -40 to +100 ℃ Pin Soldering Temperature TSol 260 ℃ Input Output Note f=100Hz, duty=1% 100ms(1 pulse) RH=60%, 1min 10 sec max. Electrical Specifications (Ambient Temperature: 25℃) Item Input Symbol MIN. TYP. MAX. Units LED Forward Voltage VF 1.2 1.4 V Operation LED Current IF On 0.5 3.0 mA Recovery LED Current IF Off 0.35 0.5 mA Recovery LED Voltage VF Off 0.5 Conditions IF=10mA V IF=5mA,IL=100mA, On-Resistance Output Transmis sion Coupled ROn 8 12 Ω Time to flow is within 1 sec. 1 µA VL=Rating pF VL=0, f=1MHz Off-State Leakage Current ILeak Output Capacitance COut 17 Turn-On Time TOn 0.15 0.5 ms Turn-Off Time TOff 0.05 0.2 ms I/O Isolation Resistance RI/O I/O Capacitance CI/O 109 0.8 2 1.5 IF=5mA, IL=100mA Ω DC500V pF f=1MHz Letex Technology Corp. Outline Dimensions 8 7 1 6 2 5 3 4 Unit : mm inch Tolerance: 0.1 .004 Schematic 8 7 6 5 1 2 3 4 1,3. LED Anode 2,4. LED Cathode 5,6,7,8. MOS FET 3 Letex Technology Corp. Reference Data Load current Vs. Ambient temperature On resistance Vs. Ambient temperature Turn on time Vs. Ambient temperature 3.0 50 LT211 120 40 2.5 LT210 LT210 100 60 40 30 Turn on time (ms) On resistabce (Ω ) Load current (mA) 2.0 80 LT211 20 10 0 -40 -20 0 20 40 60 80 85 100 LT211 LT210 0 -40 -20 Ambient temperature (℃ ) 0 20 40 60 85 100 -40 -20 0 Ambient temperature (℃ ) 0.4 4 0.4 0.1 LED turn off time (mA) 0.5 LED operate current (mA) 5 0.2 40 60 80 85 100 LED turn off current Vs. Ambient temperature 0.5 0.3 20 Ambient temperature (℃ ) LED operate current Vs. Ambient temperature Turn off time Vs. Ambient temperature Turn off time (ms) 1.0 0.5 20 0 1.5 3 2 1 0.3 0.2 0.1 LT211 LT210 0 0 -40 -20 0 20 40 60 85 100 0 -40 -20 Ambient temperature (℃ ) 0 20 40 60 85 100 -40 -20 0 Ambient temperature (℃ ) Voltage Vs. currennt characteristics of output at MOS portion LED forward voltage Vs. Ambient temperature 20 40 60 85 100 Ambient temperature ( ℃ ) Off state leakage current LED forward voltage (V) 1.4 1.3 LT211 LT210 100 10-3 80 Off state leakage current (A) Current, A 1.5 60 40 20 -5 1.2 -4 -3 -2 1.1 -1 1 50mA 30mA 20mA 10mA 5mA -20 2 3 4 5 Voltage, V -40 -60 1.0 10-6 10-9 LT210 -80 10-12 -100 0 -40 -20 0 20 40 60 85 100 0 20 Ambient temperature (℃ ) LED foward current Vs. turn off time characteristics 60 80 100 0.12 1.0 0.10 Turn off time (ms) 1.2 0.8 0.6 0.4 Applied voltage Vs. output capacitance characteristics 200 Out capacitance (pF) LED foward current Vs. turn on time characteristics Turn on time (ms) 40 Load voltage ( V) 0.08 0.06 0.04 150 100 50 0.2 0.02 0 0 0 10 20 30 40 LED forward current (mA) 50 60 0 0 10 20 30 40 LED forward current (mA) 4 50 60 0 10 20 30 40 50 Applied voltage (V) Letex Technology Corp. Taping Specifications for Surface Mount Devices Label sticking position Direction of feed Unit : mm Recommended Mounting Pad Marking (Top view) (Each photo MOS Relay shall be marked with the following information) Brand Name Letex LT314 Part Name 162 Date Code 162 Unit : mm Tolerance : ±0.1 Notes： 1. Weeks Monthly Year There shall be 400 mm of leader minimum what may consist of carrier and cover tape follower. 2. Devices are pockets in accordance with IEC standard IEC286-3 (JIS C 0806) and specifications given above. 3. Packaging：2,000pcs per reel, 2 reel per box, 5 boxes per carton. 5 Letex Technology Corp.