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| 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 Letex LA211 16A 1 1 2 2 1. 2. 3. 4. LED Anode LED Cathode Emitter Collector -1- Letex Technology Corp. Photocoupler Part Name: LA211 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=100A, 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 VF IR Ct Vceo Veco Iceo A CTR B C D Vce(sat) RI/O CI/O Input MAX. 1.4 10 Units V A pF V V nA Conditions IF=20mA VR=5V V=0, f=1.0MHz Ic=0.5mA Ie=0.1mA Vce=10V, IF=0 1.2 25 35 5 Output Current Transfer Ratio Coupled Collector Saturation Voltage Isolation Resistance Isolation Capacitance Rise Time Fall Time tr tf 100 BIN GRADE 80 160 130 260 200 400 300 600 0.4 9 10 1.0 3 3 IF=5mA, Vce=5V V pF s s IF=10mA, Ic=1mA V=500V DC V=0, f=1.0MHz Vce=5V, Ic=2mA, RL=100 -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 20 100 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 Vce = 5V Ta = 25 30 Collector current Vs. Collector-Emitter voltage IF = 30mA 25 Ta = 25 20mA Pc(Max) 20 100 50 140 120 CTR (%) 100 80 60 40 20 1 Collector current (mA) Forward current (mA) 160 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 IF = 5mA Vce = 5V 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 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 Ta = 25 Ic=0.5mA Response time Vs. Load resistance Test circuit for resopnse time Collector-Emitter satureation voltage (V) 1.0 500 200 100 Vce = 2V Ic = 2mA Ta = 25 Vcc Input RL Input RD Output Output 10% 90% Response time ( s) 30 40 50 60 0.8 3mA 1mA 5mA 7mA 50 20 10 5 2 1 0.5 0.2 0.6 0.4 0.2 0 0 10 20 0.1 0.1 0.2 0.5 1 2 5 10 Forward current (mA) Load resistance (k ) -3- Letex Technology Corp. |
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