SFH3T, SFH3T, SFH343T High Speed Optocoupler, MBd, i94 DESCRIPTION SFH3/ NC A 2 C 3 NC 4 NC A 2 C 3 NC 4 i99-2 8 V CC The SFH3T, SFH3T, SFH343T, high speed optocouplers, each consists of a GaAlAs infrared emitting diode, optically coupled with an integrated photo detector and a high speed transistor. The photo detector is junction isolated from the transistor to reduce miller capacitance effects. The open collector output function allows circuit designers to adjust the load conditions when interfacing with different logic systems such as TTL, CMOS, etc. Because the SFH343T has a faraday shield on the detector chip, it can also reject and minimize high input to output common mode transient voltages. There is no base connection, further reducing the potential electrical noise entering the package. The SFH3T, SFH3T, SFH343T are packaged in industry standard SOIC-8 packages and are suitable for surface mounting. BV B C E SFH34 3 8 V CC NC C E V D E FEATURES Surface mountable Industry standard SOIC-8 footprint Compatible with infrared vapor phase reflow and wave soldering processes Isolation test voltage, 4 V RMS Very high common mode transient immunity: V/μs at V CM = V guaranteed (SFH343) High speed: MBd TTL compatible Guaranteed AC and DC performance temperature: C to C Open collector output Pin compatible with agilent (HP) optocouplers - SFH3T - HCPL - SFH3T - HCPL - SFH343T - HCPL43 Compliant to RoHS Directive 22/9/EC and in accordance to WEEE 22/9/EC APPLICATIONS Line receivers Logic ground isolation Analog signal ground isolation Replace pulse transformers AGENCY APPROVALS UL, file no. E244 system code Y cul - file no. E244, equivalent to CSA bulletin A DIN EN 4-- (VDE 884) available with option ORDERING INFORMATION S F H 3 # # T SIOC-8 PART NUMBER. mm AGENCY CERTIFIED/ PACKAGE CTR (%) UL, cul NO BASE CONNECTION SOIC-8 SFH3T () SFH3T () SFH343T () () Also available in tubes; do not add T to end ABSOLUTE MAXIMUM RATINGS (T amb = 2 C, unless otherwise specified) PARAMETER TEST CONDITION SYMBOL VALUE UNIT INPUT Reverse voltage V R 3 V DC forward current I F 2 ma Surge forward current t p μs, 3 pulses/s I FSM A Power dissipation T amb C P diss 4 mw Document Number: 83 For technical questions, contact: optocoupleranswers@vishay.com www.vishay.com Rev. 2., 9-Oct-
SFH3T, SFH3T, SFH343T High Speed Optocoupler, MBd, ABSOLUTE MAXIMUM RATINGS (T amb = 2 C, unless otherwise specified) PARAMETER TEST CONDITION SYMBOL VALUE UNIT OUTPUT Supply voltage V S -. to 3 V Output voltage -. to 2 V Output current I O 8 ma Power dissipation T amb C P diss mw COUPLER Isolation test voltage between emitter and detector V ISO 4 V RMS Pollution degree (DIN VDE ) 2 Creepage distance 4 mm Clearance distance 4 mm Comparative tracking index per DIN IEC 2/VDE 33 part CTI Isolation resistance V IO = V, T amb = 2 C, R () ISOL R IO 2 Ω V IO = V, T amb = C, R () ISOL R IO Ω Storage temperature range T stg - to + C Ambient temperature range T amb - to + C Junction temperature T j C Soldering temperature (2) max. s, dip soldering distance to seating plane. mm 2 C s Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute maximum ratings for extended periods of the time can adversely affect reliability. () Device considered a two-terminal device: pins, 2, 3, and 4 shorted together and pins,,, and 8 shorted together. (2) Refer to reflow profile for soldering conditions for surface mounted devices. ELECTRICAL CHARACTERISTICS (T amb = 2 C, unless otherwise specified) INPUT Forward voltage I F = ma, 2 C V F..8 V V F..9 V Reverse current V R = 3 V I R. μa Capacitance f = MHz, V F = V C IN pf Temperature coefficient of I F = ma ΔV F / -. mw/ C OUTPUT Logic low supply current I F = ma, = open, V CC = V I CCL 2 μa Logic high supply current Logic low output voltage Logic high output current I F = ma, = open, V CC = V; 2 C I CCH. μa I CCH. 2 μa I F = ma, V CC = 4. V, I O =. ma, SFH3T L..4 V I F = ma, V CC = 4. V, I O =.8 ma SFH3T L.. V I F = ma, V CC = 4. V, I O = 3 ma, SFH3T L..4 V I F = ma, V CC = 4. V, I O = 2.4 ma SFH343T L.. V I F = ma, V CC = 4. V, I O = 2.4 ma SFH3T L.. V I F = ma, V CC = 4. V, I O = 2.4 ma SFH343T L.. V I F = ma, = V CC =. V, 2 C I OH.3. μa I F = ma, = V CC = V, 2 C I OH. μa I F = ma, = V CC = V I OH μa www.vishay.com For technical questions, contact: optocoupleranswers@vishay.com Document Number: 83 2 Rev. 2., 9-Oct-
High Speed Optocoupler, MBd, SFH3T, SFH3T, SFH343T ELECTRICAL CHARACTERISTICS (T amb = 2 C, unless otherwise specified) COUPLER Capacitance (input to output) () f = MHz C IO.4 pf s Minimum and maximum values are testing requirements. Typical values are characteristics of the device and are the result of engineering evaluation. Typical values are for information only and are not part of the testing requirements. () A. μf bypass capacitor connected between pins and 8 is recommended. CURRENT TRANSFER RATIO Current transfer ratio =.4 V, I F = ma, V CC = 4. V, 2 C SFH3T CTR % =. V, I F = ma, V CC = 4. V SFH3T CTR % =.4 V, I F = ma, V CC = 4. V, 2 C SFH3T CTR 9 3 % =.4 V, I F = ma, V CC = 4. V, 2 C SFH343T CTR 9 3 % =. V, I F = ma, V CC = 4. V SFH343T CTR 3 % =. V, I F = ma, V CC = 4. V SFH3T CTR 3 % Current transfer ratio in percent equals the ratio of output collector current (I O ) to the forward LED input current (I F ) times. A. μf bypass capacitor connected between pins and 8 is recommended. % duty cycle /f < µs Pulse generator Z O = Ω t r = ns I F 2 8 R L + V I F V I F = monitor 3 4. µf C L = pf t PHL. V t PLH. V L R M isfh3t_ Fig. - Test Circuit for Switching Times SWITCHING CHARACTERISTICS Propagation delay time to logic low at output (see fig. ) Propagation delay time to logic high at output (see fig. ) R L = 4. KΩ R L =.9 KΩ R L = 4. KΩ R L =.9 KΩ SFH3T t () PHL.. μs SFH3T t PHL. 2 μs SFH3T t PHL.2.8 μs SFH343T t PHL.2 μs SFH3T t () PLH.. μs SFH3T t PLH. 2 μs SFH3T t PLH..8 μs SFH343T t PLH. μs s Over recommended temperature (T amb = C to C ), V CC = V, I F = ma unless otherwise specified. The.9 kw load represents TTL unit load of. ma and the. kw pull-up resistor. The 4. kw load represents LSTTL unit load of.3 ma and the. kw pull-up resistor. () T amb = 2 C, unless otherwise specified. Document Number: 83 For technical questions, contact: optocoupleranswers@vishay.com www.vishay.com Rev. 2., 9-Oct- 3
SFH3T, SFH3T, SFH343T High Speed Optocoupler, MBd, COMMON MODE TRANSIENT IMMUNITY Common mode transient immunity at logic high level output (see fig. 2) Common mode transient immunity at logic low level output (see fig. 2) R L = 4. kω, I F = ma, V CM = V P-P SFH3T CM H kv/μs R L =.9 kω, I F = ma, SFH3T CM H kv/μs V CM = V P-P SFH343T CM H 3 kv/μs R L = 4. kω, I F = ma, V CM = V P-P SFH3T CM L kv/μs R L =.9 kω, I F = ma, V CM = V P-P SFH3T CM L kv/μs R L =.9 kω, I F = ma, V CM = V P-P SFH343T CM L 3 kv/μs Common mode transient immunity in a logic high level is the maximum tolerable (positive) dv CM /dt on the leading edge of the common mode pulse (V CM ) to assure that the output will remain in a logic high state (i.e., > 2 V). Common mode transient immunity in a logic low level the maximum tolerable (negative) dv CM /dt on the trailing edge of the common mode pulse signal (V CM to assure that the output will remain in logic low state, i.e., >.8 V). The.9 kω load represents TTL unit load of. ma and the. kω pull-up resistor. The 4. kω load represents LSTTL unit load of.3 ma and the. kω pull-up resistor. I F 2 8 R L + V V CM V 9 % 9 % % % t r t f B V CC A 3 4. µf Switch at A: I F = ma V isfh3t_2 V CM + Switch at B: I F = ma Pulse Generator at B: Fig. 2 - Test Circuit for Transient Immunity and Typical Waveforms L SAFETY AND INSULATION RATINGS PARAMETER TEST CONDITION SYMBOL MIN. TYP. MAX. UNIT Climatic Classification (according to IEC 8 part ) //2 Comparative Tracking Index CTI 399 V IOTM V V IORM V P SO 3 mw I SI ma T SI C Creepage distance 4 mm Clearance distance 4 mm Insulation thickness.2 mm As per IEC 4--,.4.3.8., this optocoupler is suitable for safe electrical insulation only within the safety ratings. Compliance with the safety ratings shall be ensured by means of protective circuits. www.vishay.com For technical questions, contact: optocoupleranswers@vishay.com Document Number: 83 4 Rev. 2., 9-Oct-
High Speed Optocoupler, MBd, TYPICAL CHARACTERISTICS (T amb = 2 C, unless otherwise specified) SFH3T, SFH3T, SFH343T I F - LED Current (ma) 2 C 2 C C.3.4... isfh3t_3 V F - LED Forward Voltage (V) Fig. 3 - LED Forward Current vs. Forward Voltage Output Current, I (ma) O 8 at =.4 V, V CC =. V I F = 2 ma I F = ma 4 I F = ma I F = 2 ma 3 2 I F = ma - - 4-2 2 4 8 isfh3t_ Fig. - Output Current vs. Temperature I F - LED Current (ma) 3 2 2 4 8 isfh3t_4 Ambient Temperature ( C) Fig. 4 - Permissible Forward LED Current vs. Temperature t p - Propagation Delay Time (ns) 9 SFH3T and SFH343T 8 at V CC =. V T plh at 3 V I F = ma, R L =.9 kω T plh at. V 4 3 2 T phl at. V T phl at 3 V - - 4-2 2 4 8 isfh3t_8 Fig. - Propagation Delay vs. Temperature SFH3T and SFH343T Total Power (mw) 2 8 4 2 isfh3t_ Detector Emitter 2 4 Fig. - Permissible Power Dissipation vs. Temperature 8 Ambient Temperature ( C) t p - Propagation Delay Time (ns) 4 2 8 4 2 SFH3 T at V CC =. V, I F = ma,r L = 4. kω T plh T phl - - 4-2 2 4 8 isfh3t_9 Fig. 8 - Propagation Delay vs. Temperature SFH3T Document Number: 83 For technical questions, contact: optocoupleranswers@vishay.com www.vishay.com Rev. 2., 9-Oct-
SFH3T, SFH3T, SFH343T High Speed Optocoupler, MBd, I OH - Collector Current, IC (na).. V CC = = V V CC = = V Δi F /Δi O /Small Signal Current Transfer Ratio...4.3.2. (V CC =. V, R L = Ω). - - 4-2 2 4 8 2 2 isfh3t_ isfh3t_ I F (ma) Fig. 9 - Logic High Output Current vs.temperature Fig. - Small Signal Current Transfer Ratio vs. Input Current PACKAGE DIMENSIONS in millimeters 3. ±.3 R.3. C L 3.9 ±.3.2.3.9 Pin one ID.4 4.32.4. 4.88 ±.3.38 ±. 4.49 ±.3 ISO method A.2 3.8 ±.3 i83..2.3.2 typ.. ±. 2 places max. R.2 max. Lead coplanarity ±.4 max. PACKAGE MARKING SFH3 V YWW Y 8 24-8 www.vishay.com For technical questions, contact: optocoupleranswers@vishay.com Document Number: 83 Rev. 2., 9-Oct-
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