preliminary data sheet the information in this document is subject to change without notice. document no. p13922ej1v0ds00 (1st edition) date published november 1998 ns cp(k) printed in japan ? 1998 current limit type 4-pin sop 400 v ocmos fet (1-ch ocmos fet) ocmos fet tm ps7241s-1a description the ps7241s-1a is a solid state relay containing a gaas led on the light emitting side (input side) and normally open (n.o.) contact mos fets and current control circuit on the output side. current control circuit of ocmos fet protects this device from thermal breakdown and output circuit. it is suitable for analog signal control because of its low offset and high linearity. features ? shut down type circuit. ? limit current (i lmt = 125 to 180 ma) ? small and thin package (4-pin sop, height = 2.1 mm) ? 1 channel type (1 a output) ? low led operating current (i f = 2 ma) ? break down voltage (v l = 400 v) ? continuous load current (i l = 120 ma) ? designed for ac/dc switching line changer ? low offset voltage ? ordering number of taping product: PS7241S-1A-E3, e4, f3, f4 applications ? note pc, pda ? modem card ? telephone, fax ? measurement equipment
preliminary data sheet 2 ps7241s-1a 2.54 0.4 +0.10 C0.05 0.25 m 2.0 2.13 max. 4.4 7.00.3 1.3 0.50.3 0.15 +0.10 C0.05 1. led anode 2. led cathode 3. mos fet 4. mos fet 43 12 top view 4.5 max. 0.05 +0.08 C0.05 absolute maximum ratings (t a = 25 c, unless otherwise specified) parameter symbol ratings unit diode forward current (dc) i f 50 ma reverse voltage v r 5.0 v power dissipation p d 50 mw peak forward current *1 i fp 1a mos fet break down voltage v l 400 v continuous load current i l 120 ma power dissipation p d 300 mw isolation voltage *2 bv 1 500 vr.m.s. total power dissipation p t 350 mw operating ambient temperature t a - 40 to +80 c storage temperature t stg - 40 to +100 c *1 pw = 100 m s, duty cycle = 1 % *2 ac voltage for 1 minute at t a = 25 c, rh = 60 % between input and output
preliminary data sheet 3 ps7241s-1a recommended operating conditions (t a = 25 c) parameter symbol min. typ. max. unit led operating current i f 21020ma led off voltage v f 00.5v electrical characteristics (t a = 25 c) parameter symbol conditions min. typ. max. unit diode forward voltage v f i f = 10 ma 1.2 1.4 v reverse current i r v r = 5 v 5.0 m a mos fet off-state leakage current i loff v d = 400 v 1 m a output capacitance c out v = 0 v, f = 1 mhz 65 pf coupled led on-state current i fon i l = 120 ma 2 ma on-state resistance r on1 i f = 10 ma, i l = 10 ma 28 35 w r on2 i f = 10 ma, i l = 120 ma 24 30 turn-on time *1 t on i f = 10 ma, v o = 5 v, 0.5 2.0 ms turn-off time *1 t off pw 3 10 ms 0.07 0.2 isolation resistance r i-o v i-o = 1.0 kv dc 10 9 w isolation capacitance c i-o v = 0 v, f = 1 mhz 0.5 pf limit current i lmt i f = 10 ma, v l = 6 v, t = 5 ms 125 150 180 ma *1 turn-on, turn-off time t on t off 10 % 90 % input 0 output v o = 5 v 50 %
ps7241s-1a caution within this device there exists gaas (gallium arsenide) material which is a harmful substance if ingested. please do not under any circumstances break the hermetic seal. ocmos fet is a trademark of nec corporation. no part of this document may be copied or reproduced in any form or by any means without the prior written consent of nec corporation. nec corporation assumes no responsibility for any errors which may appear in this document. nec corporation does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from use of a device described herein or any other liability arising from use of such device. no license, either express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of nec corporation or others. while nec corporation has been making continuous effort to enhance the reliability of its semiconductor devices, the possibility of defects cannot be eliminated entirely. to minimize risks of damage or injury to persons or property arising from a defect in an nec semiconductor device, customers must incorporate sufficient safety measures in its design, such as redundancy, fire-containment, and anti-failure features. nec devices are classified into the following three quality grades: "standard", "special", and "specific". the specific quality grade applies only to devices developed based on a customer designated "quality assurance program" for a specific application. the recommended applications of a device depend on its quality grade, as indicated below. customers must check the quality grade of each device before using it in a particular application. standard: computers, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots special: 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) specific: aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems or medical equipment for life support, etc. the quality grade of nec devices is "standard" unless otherwise specified in nec's data sheets or data books. if customers intend to use nec devices for applications other than those specified for standard quality grade, they should contact an nec sales representative in advance. anti-radioactive design is not implemented in this product. m4 96. 5
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