SN75240 DUAL UNIVERSAL SERIAL BUS PORT TRANSIENT SUPPRESSOR SLLS266 FEBRUARY 1997

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Abner Cook
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1 DUL UNIVERSL SERIL US PORT TRNSIENT SUPPRESSOR SLLS266 FERURY 997 Design to Protect Submicron 3-V or -V Silicon from Noise Transients pplicable to Two High- or Low-Speed Universal Serial us (US) Host, Hub or Peripheral Ports Port ESD Protection Capability Exceeds: -kv Human ody Model 2-kV Machine Model -kv IEC Low Current Leakage... µ Max Stand-Off Voltage V Min Low Capacitance...3 pf Typ C D schematic P OR PW PCKGE (TOP VIEW) or C description The SN7240 is four transient voltage suppressors designed to provide additional electrical noise transient protection to two US ports. ny cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the US transceiver and/or the US SIC if they are of sufficient magnitude and duration. The US ports are typically implemented in 3-V or -V digital CMOS with very limited ESD protection. The SN7240 can significantly increase the port ESD protection level and reduce the risk of damage to the large and expensive circuits of the US port. CURRENT vs VOLTGE or D (One Suppressor Shown) NOTE : ll four terminals should be connected to ground IEC COMPLINCE LEVEL IEC Compliance Test Levels MXIMUM TEST VOLTGE CONTCT DISCHRGE (kv) IR DISCHRGE (kv) Current Voltage V NOTE : Typical current versus voltage curve was derived using the IEC.2/0-µs surge waveform. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. IEC ESD performance is measured at the systems level and system designs influence the results of these tests. Testing done at the component level act as an indicator that the system passes at a particular compliance level, but does not ensure that the system passes at that level. The Texas Instruments US EVM with the TUS2040 US controller (2-kV HM and 200-V MM) was used for the test platform. PRODUCTION DT information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright 997, Texas Instruments Incorporated POST OFFICE OX 6303 DLLS, TEXS 726 POST OFFICE OX 443 HOUSTON, TEXS

2 DUL UNIVERSL SERIL US PORT TRNSIENT SUPPRESSOR SLLS266 FERURY 997 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Continuous total power dissipation See Dissipation Rating Table Electrostatic discharge Class 3, : kv, : 2 kv Peak power dissipation, P D(peak) W Peak forward surge current, I FSM Peak reverse surge current, I RSM Storage temperature range, T stg C to 0 C Lead temperature,6 mm (/6 inch) from case for 0 seconds C Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. PCKGE T 2 C POWER RTING DISSIPTION RTING TLE DERTING FCTOR OVE T = 2 C T = 70 C POWER RTING T = C POWER RTING P 0 mw 9.2 mw/ C 736 mw 9 mw PW 20 mw 4.2 mw/ C 33 mw 26 mw This is the inverse of the junction-to-ambient thermal resistance when board-mounted and with no air flow. recommended operating conditions MIN MX UNIT Operating free-air temperature, T 0 70 C electrical characteristics over recommended operating conditions (unless otherwise noted) PRMETER TEST CONDITIONS MIN TYP MX UNIT Ilkg Leakage current VI = 6 V at,, C, or D terminals µ V(R) reakdown voltage VI = m at,, C, or D terminals 7 V PPLICTION INFORMTION Full-Speed or Low-Speed US Host-or-Hub Port Transceiver 20 Ω D+ D+. kω (Full Speed Only) 27 Ω Full-Speed or Low-Speed US Down Stream Transceiver kω kω 20 Ω /2 SN7240 D /2 SN7240 D. kω (Low Speed Only) 27 Ω Figure. Typical US pplication 2 POST OFFICE OX 6303 DLLS, TEXS 726 POST OFFICE OX 443 HOUSTON, TEXS

3 DUL UNIVERSL SERIL US PORT TRNSIENT SUPPRESSOR SLLS266 FERURY 997 P (R-PDIP-T) MECHNICL INFORMTION PLSTIC DUL-IN-LINE PCKGE (0,60) 0.3 (9,02) (6,60) (6,0) (,7) MX (0,) MIN 0.30 (7,7) (7,37) (,0) MX Seating Plane 0.2 (3,) MIN 0.00 (2,4) (0,3) 0.0 (0,3) 0.00 (0,2) M 0.00 (0,2) NOM / 03/9 NOTES:. ll linear dimensions are in inches (millimeters).. This drawing is subject to change without notice. C. Falls within JEDEC MS-00 POST OFFICE OX 6303 DLLS, TEXS 726 POST OFFICE OX 443 HOUSTON, TEXS

4 DUL UNIVERSL SERIL US PORT TRNSIENT SUPPRESSOR SLLS266 FERURY 997 PW (R-PDSO-G**) 4 PIN SHOWN MECHNICL INFORMTION PLSTIC SMLL-OUTLINE PCKGE 0,32 0,6 0,3 M 0,9 4 4,0 4,30 6,70 6,0 0, NOM Gage Plane 7 0 0,2 0,7 0,0 Seating Plane,20 MX 0,0 MIN 0,0 DIM PINS ** MX 3,0,0,0 6,60 7,90 9,0 MIN 2,90 4,90 4,90 6,40 7,70 9, / D 0/9 NOTES:. ll linear dimensions are in millimeters.. This drawing is subject to change without notice. C. ody dimensions do not include mold flash or protrusion not to exceed 0,. D. Falls within JEDEC MO-3 4 POST OFFICE OX 6303 DLLS, TEXS 726 POST OFFICE OX 443 HOUSTON, TEXS

5 IMPORTNT NOTICE Texas Instruments (TI) reserves the right to make changes to its products or to discontinue any semiconductor product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. TI warrants performance of its semiconductor products and related software to the specifications applicable at the time of sale in accordance with TI s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. Certain applications using semiconductor products may involve potential risks of death, personal injury, or severe property or environmental damage ( Critical pplications ). TI SEMICONDUCTOR PRODUCTS RE NOT DESIGNED, INTENDED, UTHORIZED, OR WRRNTED TO E SUITLE FOR USE IN LIFE-SUPPORT PPLICTIONS, DEVICES OR SYSTEMS OR OTHER CRITICL PPLICTIONS. Inclusion of TI products in such applications is understood to be fully at the risk of the customer. Use of TI products in such applications requires the written approval of an appropriate TI officer. Questions concerning potential risk applications should be directed to TI through a local SC sales office. In order to minimize risks associated with the customer s applications, adequate design and operating safeguards should be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or services described herein. Nor does TI warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. Copyright 996, Texas Instruments Incorporated

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