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the mark shows major revised points. the revised points can be easily s earched by copying an "" in the pdf file and specifying it in the "find what:" field. data sheet the information in this document is subject to change without notice. before using this document, please confirm that this is the latest version. not all products and/or types are available in every country. please check with an nec electronics sales representative for availability and additional information. photocoupler ps2845-4a world?s smallest class, four channels 12-pin ultra shrink sop photocoupler ? nepoc series ? document no. pn10203ej04v0ds (4th edition) date published may 2006 ns cp(k) printed in japan 2001, 2006 description the ps2845-4a is an optically coupl ed isolator containing gaas li ght emitting diodes and npn silicon phototransistors. this product includes four channels in a singl e package for high-density mounting applications. the ps2845-4a is the world's smalle st class of photocouplers and realizes about 50% reduction in mounting area compared with the ps280x and ps281x series. features ? ultra small and thin package (12-pin ultra shrink sop, pin pitch 0.8 mm, 4.4 (l) 5.6 (w) 2.5 (h)) common lead anode, cathode, collector common high current transfer ratio (ctr = 200% typ. @ i f = 1ma) high isolation voltage (bv = 1 500 vr.m.s.) pb-free product ordering number of tape product: PS2845-4A-F3, f4: 2 500 pcs/reel safety standards ul approved: file no. e72422 applications programmable logic controllers (plcs) input and output for function automation hybrid ic 123456 12 11 10 9 8 7 channel 1 ch 2 ch 3 ch 4 ch anode, cathode 1, 6 common 1, 6 common 1, 6 common 1, 6 common cathode, anode 2 3 4 5 emitter 11 10 9 8 collector 7, 12 common 7, 12 common 7, 12 common 7, 12 common pin connections (top view)
data sheet pn10203ej04v0ds 2 ps2845-4a package dimensions (unit: mm) 4.4 7.00.3 0.50.3 0.15 +0.10 ?0.05 5.60.3 16 12 7 0.10.1 2.5 +0.3 ?0.2 0.30.1 0.8 0.12 m marking example type number *1 assembly lot no. 1 pin mark 2845a nl601 *1 applicable type number is underlined below ps2845-4a 6 01 year assembled (last 1 digit) l n rank code in-house code (l: pb-free) week assembled
data sheet pn10203ej04v0ds 3 ps2845-4a ordering information part number order number solder plating specification packing style safety standard approval application part number *1 PS2845-4A-F3 PS2845-4A-F3-a pb-free embossed t ape 2 500 pcs/reel standard products ps2845-4a ps2845-4a-f4 ps2845-4a-f4-a (ul approved) *1 for the application of the safety standar d, following part number should be used. absolute maximum ratings (t a = 25 c, unless otherwise specified) parameter symbol ratings unit diode forward current (dc) i f 20 ma/ch power dissipation derating ? i f / c 0.2 ma/ c peak forward current *1 i fp 0.5 a/ch transistor collector to emitter voltage v ceo 70 v emitter to collector voltage v eco 5 v collector current i c 20 ma/ch power dissipation derating ? p c / c 0.4 mw/ c power dissipation p c 40 mw/ch isolation voltage *2 bv 1 500 vr.m.s. operating ambient temperature t a ?40 to +100 c storage temperature t stg ?55 to +125 c *1 pw = 100 s, duty cycle = 1% *2 ac voltage for 1 minute at t a = 25 c, rh = 60% between input and output. pins 1-6 shorted together , 7-12 shorted together.
data sheet pn10203ej04v0ds 4 ps2845-4a electrical characteristics (t a = 25c) parameter symbol conditions min. typ. max. unit diode forward voltage v f i f = 1 ma 0.9 1.1 1.2 v terminal capacitance c t v = 0 v, f = 1 mhz 30 pf transistor collector to emitter current i ceo i f = 0 ma, v ce = 24 v 100 na coupled current transfer ratio (i c /i f ) ctr i f = 1 ma, v ce = 0.4 v 100 200 400 % optical leakage current *1 (1 to 2-ch, 2 to 3-ch, 3 to 4-ch) i l i f = 5 ma, v ce = 24 v 100 na collector saturation voltage v ce (sat) i f = 1 ma, i c = 0.2 ma 0.13 0.3 v isolation resistance r i-o v i-o = 1 kv dc 10 11 ? isolation capacitance c i-o v = 0 v, f = 1 mhz 0.4 pf turn-on time *2 t on v cc = 5 v, i f = 1 ma, r l = 5 k ? 20 s turn-off time *2 t off 110 *1 the optically induced leakage current is current which can be measured at transistor if led = ?on? and led = ?off?. led of channel 1 is switched to ?on?. at tr-output of channel 2 a volt age is applied and one can measure a cu rrent between emitter and collector. this is leakage current (at i f = 5 ma, v ceo = 24 v). measurement circuits for optical leakage current e.g. : in the case of 1 to 2-ch 5 3 2 4 6 1 8 10 11 9 7 12 i f i l a *2 test circuit for switching time v cc v out i f pulse input r l = 5 k ? 50 ? pw = 100 s duty cycle = 1/10 in monitor
data sheet pn10203ej04v0ds 5 ps2845-4a typical characteristics (t a = 25 c, unless otherwise specified) ambient temperature t a (?c) maximum forward current i f (ma) maximum forward current vs. ambient temperature 40 20 30 10 0255075 100 0.2 ma/?c ambient temperature t a (?c) transistor power dissipation p c (mw) transistor power dissipation vs. ambient temperature 25 50 75 100 125 70 50 60 20 30 40 10 0 0.4 mw/?c forward voltage v f (v) forward current i f (ma) forward current vs. forward voltage 100 10 1 0.1 0.01 0.0 0.5 1.0 1.5 2.0 0?c ?25?c ?40?c t a = +100?c +60?c +25?c ambient temperature t a (?c) collector to emitter dark current i ceo (na) collector to emitter dark current vs. ambient temperature ?25 0 25 50 75 100 1 10 100 1 000 10 000 v ce = 24 v 70 v collector to emitter voltage v ce (v) collector current i c (ma) collector current vs. collector to emitter voltage 68 45 7 9 3 2 1 10 0 20 16 12 8 4 18 14 10 6 2 5 ma 2 ma 1 ma 0.5 ma i f = 10 ma collector saturation voltage v ce (sat) (v) collector current i c (ma) collector current vs. collector saturation voltage 0.1 100 10 1 0.0 0.2 0.4 0.6 0.8 1.0 ctr = 160% i f = 0.5 ma 1 ma 2 ma 10 ma 5 ma remark the graphs indicate nominal characteristics.
data sheet pn10203ej04v0ds 6 ps2845-4a normalized to 1.0 at t a = 25?c, i f = 1 ma, v ce = 0.4 v ambient temperature t a (?c) normalized current transfer ratio ctr normalized current transfer ratio vs. ambient temperature 1.6 1.0 1.2 1.4 0.8 0.6 0.4 0.2 0.0 ?40 ?25 0 25 50 75 100 forward current i f (ma) current transfer ratio ctr (%) current transfer ratio vs. forward current 0.01 0.1 1 10 100 0 50 150 100 200 250 300 350 400 v ce = 0.4 v switching time t ( s) load resistance r l ( ?) switching time vs. load resistance 0.1 1 10 100 10 50 100 500 1 k 5 k 10 k i c = 2 ma, v cc = 5 v, ctr = 160% t f t r t d t s switching time t ( s) load resistance r l ( ?) switching time vs. load resistance 1 1 000 100 10 10 000 1 k 5 k 10 k 50 k 100 k i f = 1 ma, v cc = 5 v, ctr = 160% t f t r t d t s vs. forward current optical leakage current forward current i f (ma) optical leakage current i l (na) 1 000 100 10 1 5 10 15 20 25 0 10 v 5 v v ce = 70 v 40 v 24 v vs. ambient temperature optical leakage current ambient temperature t a (?c) optical leakage current i l (na) 50 45 30 25 40 35 20 15 10 5 0 ?20 ?10 0 10 20 30 40 50 60 70 80 90 ?30 v ce = 24 v i f = 5 ma remark the graphs indicate nominal characteristics.
data sheet pn10203ej04v0ds 7 ps2845-4a taping specifications (unit: mm) 1.550.05 2.00.05 4.00.1 1.750.1 6.00.1 3.05 max. 7.40.1 0.3 8.00.1 1.5 +0.1 ?0 5.50.05 12.00.2 2.850.1 tape direction PS2845-4A-F3 ps2845-4a-f4 outline and dimensions (reel) 1001.0 3302.0 2.00.5 11.9 to 15.4 17.51.0 13.51.0 2.00.5 r 1.0 13.00.2 21.00.8 outline and dimensions (tape) outer edge of flange packing: 2 500 pcs/reel
data sheet pn10203ej04v0ds 8 ps2845-4a recommended mount pad dimensions (unit: mm) 1.45 0.5 0.8 6.25
data sheet pn10203ej04v0ds 9 ps2845-4a notes on handling 1. recommended soldering conditions (1) infrared reflow soldering peak reflow temperature 260 c or below (package surface temperature) time of peak reflow temperature 10 seconds or less time of temperature higher than 220 c 60 seconds or less time to preheat temperature from 120 to 180 c 120 30 s number of reflows three flux rosin flux containing small amount of chlorine (the flux with a maximum chlorine content of 0.2 wt% is recommended.) 12030 s (preheating) 220?c 180?c package surface temperature t (?c) time (s) recommended temperature profile of infrared reflow (heating) to 10 s to 60 s 260?c max. 120?c (2) wave soldering temperature 260 c or below (molten solder temperature) time 10 seconds or less preheating conditions 120 c or below (package surface temperature) number of times one (allowed to be dipped in solder including plastic mold portion.) flux rosin flux containing small amount of chlorine (the flux with a maximum chlorine content of 0.2 wt% is recommended.) (3) soldering by soldering iron peak temperature (l ead part temperature) 350 c or below time (each pins) 3 seconds or less flux rosin flux containing small amount of chlorine (the flux with a maximum chlorine content of 0.2 wt% is recommended.) (a) soldering of leads should be made at the poi nt 1.5 to 2.0 mm from the root of the lead. (b) please be sure that the temperatur e of the package woul d not be heated over 100 c.
data sheet pn10203ej04v0ds 10 ps2845-4a (4) cautions fluxes avoid removing the residual flux with freon-based and chlorine-based cleaning solvent. 2. cautions regarding noise be aware that when voltage is applied suddenly bet ween the photocoupler?s i nput and output or between collector-emitters at startup, the output transistor may enter the on state, even if the voltage is within the absolute maximum ratings. 3. measurement conditions of current transfer ra tios (ctr), which differ according to photocoupler check the setting values before use, since the forward current conditions at ctr measurement differ according to product. when using products other than at the specified forward current, the char acteristics curves may differ from the standard curves due to ctr value variati ons or the like. theref ore, check the characte ristics under the actual operating conditions and thoroughly take variations or the like into cons ideration before use. usage cautions 1. protect against static electricity when handling. 2. avoid storage at a high te mperature and high humidity.
data sheet pn10203ej04v0ds 11 ps2845-4a the information in this document is current as of may, 2006. the information is subject to change without notice. for actual design-in, refer to the latest publications of nec electronics data sheets or data books, etc., for the most up-to-date specifications of nec electronics products. not all products and/or types are available in every country. please check with an nec electronics sales representative for availability and additional information. no part of this document may be copied or reproduced in any form or by any means without the prior written consent of nec electronics. nec electronics assumes no responsibility for any errors that may appear in this document. nec electronics does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from the use of nec electronics products listed in this document or any other liability arising from the use of such products. no license, express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of nec electronics or others. descriptions of circuits, software and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples. the incorporation of these circuits, software and information in the design of a customer's equipment shall be done under the full responsibility of the customer. nec electronics assumes no responsibility for any losses incurred by customers or third parties arising from the use of these circuits, software and information. while nec electronics endeavors to enhance the quality, reliability and safety of nec electronics products, customers agree and acknowledge that the possibility of defects thereof cannot be eliminated entirely. to minimize risks of damage to property or injury (including death) to persons arising from defects in nec electronics products, customers must incorporate sufficient safety measures in their design, such as redundancy, fire-containment and anti-failure features. nec electronics products are classified into the following three quality grades: "standard", "special" and "specific". the "specific" quality grade applies only to nec electronics products developed based on a customer- designated "quality assurance program" for a specific application. the recommended applications of an nec electronics product depend on its quality grade, as indicated below. customers must check the quality grade of each nec electronics product before using it in a particular application. the quality grade of nec electronics products is "standard" unless otherwise expressly specified in nec electronics data sheets or data books, etc. if customers wish to use nec electronics products in applications not intended by nec electronics, they must contact an nec electronics sales representative in advance to determine nec electronics' willingness to support a given application. (note) ? ? ? ? ? ? m8e 02. 11-1 (1) (2) "nec electronics" as used in this statement means nec electronics corporation and also includes its majority-owned subsidiaries. "nec electronics products" means any product developed or manufactured by or for nec electronics (as defined above). computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots. transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support). aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems and medical equipment for life support, etc. "standard": "special": "specific":
0604 nec compound semiconductor devices hong kong limited e-mail: contact@ncsd-hk.necel.com hong kong head office tel: +852-3107-7303 fax: +852-3107-7309 taipei branch office tel: +886-2-8712-0478 fax: +886-2-2545-3859 korea branch office tel: +82-2-558-2120 fax: +82-2-558-5209 nec electronics (europe) gmbh http://www.eu.necel.com/ tel: +49-211-6503-0 fax: +49-211-6503-1327 california eastern laboratories, inc. http://www.cel.com/ tel: +1-408-988-3500 fax: +1-408-988-0279 compound semiconductor devices division nec electronics corporation url: http://www.ncsd.necel.com/ for further information, please contact ps2845-4a caution gaas products this product uses gallium arsenide (gaas). gaas vapor and powder are hazardous to human health if inhaled or ingested, so please observe the following points. follow related laws and ordinanc es when disposing of the produc t. if there are no applicable laws and/or ordinances, dispose of the product as recommended below. 1. commission a disposal company able to (wit h a license to) collect, transport and dispose of materials that contain arsenic and other such industrial waste materials. 2. exclude the product from general industria l waste and household garbage, and ensure that the product is controlled (as industria l waste subject to special c ontrol) up until final disposal. do not burn, destroy, cut, crush, or chemically di ssolve the product. do not lick the product or in any way allow it to enter the mouth.

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