LA314

Photocoupler Part Name: LA314 Features ‧SOP package 4 Pin type in miniature design ‧600% minimum current transfer ratio ‧1500V rms Input/Output isolation ‧AC input. Applications ‧Telephones ‧Programmable controllers ‧System appliances, measuring instruments. ‧Signal transmission between circuits of different potentials and impedances. Dimensions(Unit: mm [inch]) 8 7 6 5 8 7 6 5 Letex LA314 16A 1 1 2 3 4 2 3 4 1,3. 2,4. 5,7. 6,8. Anode,Cathode Cathode, Anode Emitter Collector General Tolerance: ±0.1 Terminal Thickness: 0.15 [.006] -1- Letex Technology Corp. Photocoupler Part Name: LA314 Absolute Maximum Ratings (Ambient Temperature: 25℃) Item Symbol Rating Forward Current Input Reverse Voltage Peak Forward Current Collector to Emitter Voltage Emitter to Collector Voltage Output Collector Current Power Dissipation I/O Breakdown Voltage Power Dissipation Storage Temperature Operating Temperature Soldering Temperature IF VR IFP Vceo Veco Ic Pc VI/O PD Tstg Top TSol 50 5 1 40 6 50 150 1500 200 -55 to +125 -55 to +100 260 Units mA V A V V mA mW Vrms mW ℃ ℃ ℃ Note Ic=1mA, IB=0 IE=100µA, IB=0 RH=60%, 1min 10 seconds max. Electrical Specifications (Ambient Temperature: 25℃) Item Symbol MIN. TYP. Forward Voltage Reverse Current Junction Capacitance C-E Breakdown Voltage E-C Breakdown Voltage Collector Dark Current Current Transfer Ratio Collector Saturation Voltage Isolation Resistance Isolation Capacitance Rise Time Fall Time VF IR Ct Vceo Veco Iceo CTR Vce(sat) RI/O CI/O Input MAX. 1.4 - Units V µA pF V V nA ﹪ V Ω pF µs µs Conditions IF= ± 20mA V=0, f=1.0KHz Ic=0.5mA Ie=0.1mA Vce=20V, IF=0 IF= ± 1mA, Vce=5V IF=±20mA, Ic=1mA V=500V DC V=0, f=1.0MHz Vce=5V, Ic=2mA, RL=100Ω 1.2 30 35 6 600 1600 Output Coupled 100 7000 1 109 300 250 1.0 tr tf -2- Letex Technology Corp. Photocoupler Reference Data Forward current Vs. Ambient temperature 60 Collector power dissipation Vs. Ambient temperature Collector power dissipation (mW) Peak forward current Vs. Duty ratio 50 2000 Peak forward current ( mA) 150 1000 500 200 100 50 20 Pulse width 100us Ta = 25℃ Forward current (mA) 40 30 100 20 50 10 0 -25 0 25 50 75 100 125 0 -25 0 25 50 75 100 125 10 5 10 -3 2 5 10 -2 2 5 10 -1 2 5 10 0 Ambient temperature (℃) Ambient temperature (℃) Duty ratio Forward current Vs. Forward voltage 500 200 Ta = 75℃ 50℃ 25℃ 0℃ 25℃ Current transfer ratio Vs. Forward current 200 180 30 Collector current Vs. Collector-Emitter voltage IF = 30mA 25 Vce = 5V Ta = 25℃ Ta = 25℃ 20mA Pc(Max) 100 50 140 120 Collector current (mA) Forward current (mA) 160 20 CTR ( %) 100 80 60 40 20 1 15 20 10 5 2 1 0 0.5 1.0 1.5 2.0 2.5 3.0 10mA 10 5mA 5 0 1 2 5 10 20 50 0 1 2 3 4 5 6 7 8 9 Forward voltage (V) Forward current (mA) Collector-Emitter voltage (V) Relative CTR Vs. Ambient temperature 150 Collector-Emitter saturation voltage Vs. Ambient temperature 0.16 10 -5 Collector dark current Vs. Ambient temperature Vce = 20V Collector-Emitter saturation voltage (V) Collector dark current (A) 100 IF = 5mA Vce = 5V 0.14 0.12 0.10 0.08 0.06 0.04 0.02 0 IF = 20mA Ic = 1mA 10 -6 10 -7 10 -8 10 -9 10 -10 10 -11 Relative CTR ( %) 100 50 0 -25 0 25 50 75 100 -25 0 25 50 75 -25 0 25 50 75 100 Ambient temperature (℃) Ambient temperature (℃) Ambient temperature (℃) Collector-Emitter saturation voltage Vs. Forward current 1.2 Response time Vs. Load resistance Test circuit for resopnse time Ta = 25℃ Ic=0.5mA Collector-Emitter satureation voltage (V) 1.0 500 200 100 Vcc Vce = 2V Ic = 2mA Ta = 25℃ Input Input RD RL Output Output 10% 90% Response time ( μ s) 30 40 50 60 0.8 50 20 10 5 2 1 0.5 0.2 3mA 0.6 0.4 0.2 0 0 10 20 1mA 5mA 7mA 0.1 0.1 0.2 0.5 1 2 5 10 Forward current (mA) Load resistance (k Ω ) -3- Letex Technology Corp.