Prod uct Bul le tin OP705A March 1999 NPN Phototransistor with Base-Emitter Resistor Types OP705A, OP705B, OP705C, OP705D Features Ab so lute Maxi mum Rat ings (TA = 25o C un less oth er wise noted) • • • • Narrow receiving angle Variety of sensitivity ranges T-1 package style Small package size for space limited applications • Base-emitter resistor provides ambient light protection Collector- Emitter Volt age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V Emit ter Re verse Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mA Col lec tor DC Cur rent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Stor age and Op er at ing Tem pera ture Range. . . . . . . . . . . . . . . . . . -40 o C to +100 o C Lead Sol der ing Tem pera ture [1/16 inch (1.6 mm) from case for 5 sec. with sol der ing iron] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260o C(1) Power Dis si pa tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mW(2) Description NOTES: (1) RMA flux is recommended. Duration can be extended to 10 sec. max. when flow soldering. Max. 20 grams force may be applied to leads when soldering. (2) Derate linearly 1.33 mW/o C above 25o C. (3) Light source is an unfiltered GaAs LED with a peak emission wavelength of 935 nm and a radiometric intensity level which varies less than 10% over the entire lens surface of the phototransistor being tested. (4) The knee point irradiance is defined as the irradiance required to increase IC(ON) to 50 µA. The OP705 series devices consist of NPN silicon phototransistors molded in blue tinted epoxy packages. The narrow receiving angle provides excellent onaxis coupling. These devices are 100% production tested using infrared light for close correlation with Optek’s GaAs and GaAlAs emitters. Typi cal Per form ance Curves Typi cal Spec tral Re sponse Schematic The phototransistor has an internal baseemitter resistor which provides protection from low level ambient lighting conditions. This feature is also useful when the media being detected is semitransparent to infrared light in interruptive applications. Wave length - nm Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 3-40 (972)323- 2200 Fax (972)323-2396 Types OP705A, OP705B, OP705C, OP705D Elec tri cal Char ac ter is tics (TA = 25o C un less oth er wise noted) SYMBOL PARAMETER MIN On-State Collector Current 3.95 2.65 1.50 1.50 OP705A OP705B OP705C OP705D I C(ON) TYP MAX UNITS 12.0 7.25 4.85 12.0 TEST CON DI TIONS VCE = 5 V, Ee = .50 mW/cm2(3) mA mW/cm2 VCE = 5 V(4) EK P Knee Point Irradiance .02 ICEO Collector-Emitter Dark Current 100 nA VCE = 10 V, Ee = 0 IECO Emitter-Reverse Current 100 µA VEC = 0.4 V V I C = 100 µA V I C = 250 µA, Ee = .50 mW/cm2(3) V(BR)CEO Collector-Emitter Breakdown Voltage VCE(SAT) Collector-Emitter Saturation Voltage 30 0.4 Typi cal Per form ance Curves Normalized Collector Current Normalized Light and Dark Current vs. Ambient Temperature On-State Collector Current vs. Irradiance 100 10 1 Light Current OP505 .1 .01 OP705 .001 Dark Current VC E = 5 V LED: λ = 935 nm .0001 .00001 .001 θ - Angular Displacement - Deg. TA - Ambient Temperature - ° C Nor mal ized Out put vs. Fre quency .1 Ee - Irradiance - mW/cm2 Typical Rise and Fall Time vs. Load Resistance 1.0 .01 Switching Time Test Circuit 120 VRL = 1 V VCE = 5 V 50% Duty Cycle LED: λ = 935 nm V CC = 5 V V RL = 1 V f = 100 Hz PW = 1 mS LED = GaAIAS, λ = 890 nm V RL is voltage across RL 105 90 75 60 0.5 45 R L = 1KΩ 30 R L = 10K Ω 15 0 0.0 1 10 Frequency - KHz 100 1000 0 2 4 6 8 RL - Load Resistance - KΩ 10 Test Conditions: Light source is pulsed LED with, tr and t f ≤ 500 ns. I F is adjusted for VOUT = 1 Volt. Op tek re serves the right to make changes at any time in or der to im prove de sign and to sup ply the best prod uct pos si ble. Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 (972)323- 2200 Fax (972)323-2396 3-41 1