Photocoupler Part Name: LA211 LA211 photocoupler is an optically coupled pair employing a GaAs infrared LED and a silicon NPN phototransistor. Features ˙SOP package 4 Pin type in miniature design ˙80% minimun current transfer ratio ˙1500Vrms Input/Output isolation Applications ˙Computer terminals ˙System appliances ˙Signal transmission between circuits of different potentials Dimensions(Unit: mm inch) 4 3 4 3 1 2 Letex LA211 16A 1 2 1. 2. 3. 4. - 1 - LED Anode LED Cathode Emitter Collector Letex Technology Corp. Photocoupler Part Name: LA211 Absolute Maximum Ratings (Ambient Temperature: 25℃) Item Symbol Rating Units 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 mA V A V V mA mW Vrms mW ℃ ℃ ℃ 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 Output Input 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 Coupled Current Transfer Ratio Collector Saturation Voltage Isolation Resistance Isolation Capacitance Rise Time Fall Time VF IR Ct Vceo Veco Iceo 1.2 tr tf RH=60%, 1min 10 seconds max. Units 1.4 10 V µA pF V V nA IF=20mA VR=5V V=0, f=1.0MHz Ic=0.5mA Ie=0.1mA Vce=10V, IF=0 ﹪ IF=5mA, Vce=5V V Ω pF µs µs IF=10mA, Ic=1mA V=500V DC V=0, f=1.0MHz 35 5 100 BIN GRADE 80 160 130 260 200 400 300 600 0.4 9 10 1.0 3 3 - 2 - Ic=1mA, IB=0 IE=100µA, IB=0 MAX. 25 A CTR B C D Vce(sat) RI/O CI/O Note Conditions Vce=5V, Ic=2mA, RL=100Ω Letex Technology Corp. Photocoupler Reference Data Collector power dissipation Vs. Ambient temperature Forward current Vs. Ambient temperature Peak forward current Vs. Duty ratio Forward current (mA) 50 40 30 20 10 2000 150 Peak forward current ( mA) Collector power dissipation (mW) 60 100 50 Pulse width 100us Ta = 25℃ 1000 500 200 100 50 20 0 0 -25 0 25 50 75 100 125 10 -25 Ambient temperature (℃) 0 25 50 75 100 IF = 30mA 25 Collector current (mA) 160 0℃ 100 140 25℃ 120 CTR (%) 50 20 10 5 -1 2 5 10 0 2 5 10 30 Vce = 5V Ta = 25℃ 180 25℃ 50℃ 5 10 Collector current Vs. Collector-Emitter voltage 200 Ta = 75℃ 200 -2 2 Duty ratio Current transfer ratio Vs. Forward current 500 100 80 60 Ta = 25℃ 20mA Pc(Max) 20 15 10mA 10 5mA 40 5 20 2 1 1 0 0.5 1.0 1.5 2.0 2.5 3.0 0 1 2 Forward voltage (V) 5 10 20 50 0 Relative CTR Vs. Ambient temperature Collector-Emitter saturation voltage (V) 100 50 0 25 50 75 4 5 6 7 8 9 10-5 IF = 20mA Ic = 1mA 0.14 Vce = 20V 0.12 0.10 0.08 0.06 10-6 10-7 10-8 10-9 0.04 10-10 0.02 10-11 0 0 3 Collector dark current Vs. Ambient temperature 0.16 IF = 5mA Vce = 5V 2 Collector-Emitter voltage (V) Collector-Emitter saturation voltage Vs. Ambient temperature 150 -25 1 Forward current (mA) Collector dark current (A) Forward current (mA) 5 10 Ambient temperature (℃) Forward current Vs. Forward voltage Relative CTR (%) -3 125 100 -25 Ambient temperature (℃) 0 25 50 75 100 -25 Ambient temperature (℃) Collector-Emitter saturation voltage Vs. Forward current 0 25 50 75 100 Ambient temperature (℃) Response time Vs. Load resistance Test circuit for resopnse time 1.2 Ic=0.5mA 200 Response time ( μ s) 7mA 5mA 3mA 0.8 0.6 Vcc 500 100 1mA Collector-Emitter satureation voltage (V) Ta = 25℃ 1.0 0.4 Vce = 2V Ic = 2mA Ta = 25℃ Input RL Input RD 50 Output Output 10% 20 90% 10 5 2 1 0.2 0.5 0.2 0 0.1 0 10 20 30 40 Forward current (mA) 50 60 0.1 0.2 0.5 1 2 5 10 Load resistance (k Ω ) - 3 - Letex Technology Corp.