Prod uct Bul le tin OP755 June 1999 NPN Phototransistor with Base-Emitter Resistor Types OP755A, OP755B, OP755C, OP755D Features Ab so lute Maxi mum Rat ings (TA = 25o C un less oth er wise noted) • Wide receiving angle • Variety of sensitivity ranges • Side-looking package for space limited Collector- Emitter Volt age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V Emit ter Re verse Cur rent. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mA Col lec tor DC Cur rent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA Stor age and Op er at ing Tem pera ture Range . . . . . . . . . . . . . . . . . . -40° C to +100° C Lead Sol der ing Tem pera ture [1/16 inch (1.6 mm) from case for 5 sec. with sol der ing iron]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260° C(1) Power Dis si pa tion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 mW(2) applications • Base-emitter resistor provides ambient light protection Description The OP755 device consists of a NPN silicon phototransistor molded in blue tinted epoxy packages. The wide receiving angle provides relatively even reception over a large area. The sidelooking package is designed for easy PC board mounting of slotted optical switches or optical interrupt detectors. The series is mechanically and spectrally matched to the OP140 and OP240 series of infrared emitting diodes. Notes: (1) RMA flux is rec om mended. Du ra tion can be ex tended to 10 sec. max. When flow sol der ing. Max. 20 grams force may be ap plied to leads when sol der ing. (2) Derate linearly 2.0 mW/° C above 25° 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. Typi cal Per form ance Curves Typical Spectral Response 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. Wavelength - nm Op tek Tech nol ogy, Inc. 1215 W. Crosby Road Car roll ton, Texas 75006 3-44 (972) 323- 2200 Fax (972) 323- 2396 Types OP755A, OP755B, OP755C, OP755D o Elec tri cal Char ac ter is tics (TA = 25 C un less oth er wise noted) SYM BOL PARAMETER MIN TYP MAX UNITS VCE = 5 V, Ee = 1.0 mW/cm2(3) On-State Collector Current IC(ON) TEST CON DI TIONS OP755A OP755B OP755C OP755D 1.80 1.20 0.70 0.70 5.50 3.40 2.25 5.50 mA mW/cm2 VCE = 5 V(4) EKP Knee Point Irradiance .2 I CEO Collector-Emitter Dark Current 100 nA VCE = 10 V, Ee = 0 I ECO Emitter-Reverse Current 100 µA VCE = 0.4 V V IC = 100 µA V IC = 100 µA, Ee = 1 mW/cm2(3) V(BR)CEO Collector-Emitter Breakdown 30 VCE(SAT) Collector-Emitter Saturation Voltage 0.4 Typi cal Per form ance Curves Normalized Collector Current vs. Angular Displacement On-State Collector Current vs. Irradiance Normalzied Light and Dark Current vs. Ambient Temperature 100 V CE = 5 V 10 1 OP555 .1 Light Current .01 Dark Current .001 OP755 .0001 θ - Angular Displacement - Deg. .00001 .001 TA - Ambient Temperature - ° C Normalized Output vs. Frequency Typical Rise and Fall Time vs. Load Resistance 1.0 .01 .1 1 Ee - Irradiance - mW/cm2 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 = 1mS 105 90 75 60 0.5 45 30 RL = RL = 10KΩ 0.0 0 1 10 LED = GaAIAs, λ = 890 nm V RL is voltage across RL 15 100 Frequency - KHz 1000 0 2 4 6 8 RL = Load Resistance - KΩ 10 Test Conditions: Light source is pulsed LED with t r and t f ≤ 500 ns. IF is adjusted for V OUT = 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 3-45 10