To our customers, Old Company Name in Catalogs and Other Documents On April 1st, 2010, NEC Electronics Corporation merged with Renesas Technology Corporation, and Renesas Electronics Corporation took over all the business of both companies. Therefore, although the old company name remains in this document, it is a valid Renesas Electronics document. We appreciate your understanding. Renesas Electronics website: http://www.renesas.com April 1st, 2010 Renesas Electronics Corporation Issued by: Renesas Electronics Corporation (http://www.renesas.com) Send any inquiries to http://www.renesas.com/inquiry. Notice 1. 2. 3. 4. 5. 6. 7. All information included in this document is current as of the date this document is issued. Such information, however, is subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please confirm the latest product information with a Renesas Electronics sales office. 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Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this document or Renesas Electronics products, or if you have any other inquiries. (Note 1) "Renesas Electronics" as used in this document means Renesas Electronics Corporation and also includes its majorityowned subsidiaries. (Note 2) "Renesas Electronics product(s)" means any product developed or manufactured by or for Renesas Electronics. ESD NOISE CLIPPING DIODE February 2001 NEC Noise Clipping Diode NNCD Suitable device can be selected in three types of NNCD series. Low capacitance NNCD (8kV/10pF) and Low capacitance High ESD NNCD (30kV/20pF) are the suitable ESD protection device for high speed data line such as USB 1.1. High ESD NNCD (30kV) is the suitable device to protect ESD in normal speed data line. connecter ESD The device is protected from ESD by using NNCD Driver NNCD Data rate(bps) 100k 1M High ESD Low Capacitance High ESD (30kV/20pF) (30kV) NNCD * * C NNCD * * D SC-78 VBR=3.3V to 12V SC-76 VBR=3.3V to 12V NNCD * * F NNCD * * G SC-59 (Dual,Anode common) VBR=3.3V to 12V 10M NNCD * * MF SC-59 (Dual,Anode common) VBR=6.2V SC-74A (Quad,Anode common) VBR=3.3V to 7.5V,27V NNCD * * MG SC-74A (Quad,Anode common) VBR=5.6V,6.2V,6.8V Low Capacitance (8kV/10pF) NNCD * * LG NNCD * * LH SC-74A SC-88A (Quad,Anode common) (Quad,Anode common) VBR=5.6V,6.2V,6.8V VBR=5.6V,6.2V,6.8V Note 1:ESD rating is tested based on IEC61000-4-2. Note 2:Capacitance is tested at f=1MHZ and VR=0V. RS-422B RS-232C 2 IMT-2000 Pamphlet D11663EJ6V0PF USB1.1 Protection device from Electrostatic Discharge and Surge NNCD is the diode developed for the protection device from ESD(Electrostatic Discharge) and surge. RD series NNCD series ESD protection Stabilizer Level shift Detector Surge absorption For high speed signal line such as USB Standard RD Low Capacitance NNCD Low Capacitance High ESD NNCD Standard RD For normal-speed signal line such as RS-232C Low noise RD RD for Standard Voltage High ESD NNCD High ESD NNCD Pamphlet D11663EJ6V0PF 3 NEC Noise Clipping Diode NNCD ESD protection by using NNCD When ESD invades the circuit shown in next figure, EESD (energy of ESD) divides into ENNCD (energy flowing into NNCD) and Ecircuit (energy flowing into circuit). EESD=ENNCD+Ecircuit The impedance of NNCD is smaller than that of the circuit, ENNCD>>Ecircuit Most of EESD flows to GND through the NNCD and the circuit can be protected from ESD. ESD EESD Ecircuit Circuit ENNCD ESD protection by using NNCD 4 Pamphlet D11663EJ6V0PF Diode developed for ESD protection NNCD is diode developed for ESD protection. (1) High ESD series The High ESD NNCD series is 30kV ESD rating or more based on IEC61000-4-2 test. This series presents the product from 3.3V to 12V break down voltage for power supply application. (2) Low Capacitance NNCD series In Low Capacitance NNCD series have two types and presents the product from 5.6V to 6.8V break down voltage for 5V signal line. Series Low Capacitance NNCD Low Capacitance High ESD NNCD ESD rating Capacitance 8kVmin. 30kVmin. 10pF(typ.) 20pF(typ.) Normal speed data line High ESD type High speed data line Low Capacitance NNCD Signal line Pamphlet D11663EJ6V0PF Low Capacitance High ESD NNCD 5 NEC Noise Clipping Diode NNCD Low Capacitance NNCD series NNCD**LG, NNCD**LH,NNCD**MF,NNCD**MG There are two types of Low capacitance NNCD and the suitable device for high speed data line can be selected by combining capacitance and ESD rating. Low Capacitance High ESD NNCD ESD (kV) (330, 150pF contact discharge) 100 NNCD**MF NNCD**MG 40 30kV 20pF High ESD NNCD 30kV/110pF (at6.2Vtype) 30 Low Capacitance NNCD with the larger ESD rating is demanded. 20 8kV 10pF 10 0 1 Low Capacitance NNCD NNCD**LG NNCD**LH 10 100 Ct - Capacitance - pF ( VR=0V, f=1MHz ) Circuit Example in USB HUB application 5V D+ DGND Pull-up Resistor 3.3V Power Source Power IC for USB USB Port1 USB Port2 USB Port3 USB HUB Controller Power IC for USB USB Port4 Data (pair) 4 to 5 port NNCD**LG/LH or NNCD**MG x2 6 Pamphlet D11663EJ6V0PF Capacitance The diode behaves as a capacitor,except during absorbing ESD. In generally the capacitance increases the rise time and makes some problem. The small capacitance device is useful to reduce the rise time. The equivalent circuit of diode The capacitance of Low Capacitance NNCD series is 10pF or 20pF. These devices give margin for designing line impedance. Capacitance and Rise of waveform (1) NNCD**LG/LH series 100 V-Voltage-V Cp-Capacitance-pF R=60 Vo typ. TA=25C NNCD5.6LG/LH NNCD6.2LG/LH 10 NNCD**LG/LH Ct=10pF typ. TA=25C Vin=Vo R=150 R=100 NNCD6.8LG/LH 1 0 0 1 2 3 4 5 VR-Reverce Voltage-V 6 7 0 5 t-Time-ns 10 (2) NNCD**MF/MG series typ. TA=25C Vo V-Voltage-V Ct-Capacitance-pF 100 NNCD5.6MF/MG 10 NNCD6.2MF/MG R=60 R=150 R=100 NNCD**MF/MG Ct=20pF typ. TA=25C Vin=Vo 1 0 1 2 3 4 VR-Reverce Voltage-V 5 6 Pamphlet D11663EJ6V0PF 0 0 5 t-Time-ns 10 7 NEC Noise Clipping Diode NNCD Down-sizing of package NNCD**LG ,NNCD**LH and NNCD**MG are 4diode elements in one package and they can cope with more high density assembling. Especially,NNCD**LH fabricated in SC-88A package is about 50% reduction comparing with the area of NNCD**LG. NNCD**LH is the suitable device to the ESD protection of the equipment such as cellular phone that miniaturization and lightening are demanded. NNCD**LG NNCD**LH Terminal connection 2.8 1.5 4 2 4 3 1 0.9 1.25 SC-74A 4 5 1 2.0 2.9 2 3 5 2.1 1.25 5 1 2 1: K1 2: A 3: K2 4: K3 5: K4 Cathode 1 (Anode common) Cathode 2 Cathode 3 Cathode 4 3 SC-88A Circuit example in Cellular Phone application 8 Connector Interface IC NNCD**LH Cellular Phone Connector PC modem Pamphlet D11663EJ6V0PF NNCD**LH Interface IC Circuit example in Li-ion Battery application NNCD**C NNCD**D Li-ion battery Note PC Data line Protect Control IC Interface IC Microcomputer NNCD**LG NNCD**LH NNCD**MF NNCD**MG Circuit example in DVC application Camcorder Video AF system Video Signal Processing circuit Inter-face IC Audio-R Audio-L CCD MIC Audio Signal Processing circuit Recoding and play circuit Pamphlet D11663EJ6V0PF NNCD**C NNCD**D NNCD**F NNCD**MF 9 NEC Noise Clipping Diode NNCD High ESD NNCD NNCD**A, NNCD**B, NNCD**C, NNCD**D NNCD**E, NNCD**F, NNCD**G High ESD NNCD assures the endurance of 30kV ESD, based on the IEC61000-4-2 test on EMI. 1000 Condition Measuring Circuit:IEC61000-4-2 Interval:1sec times 10cycle C=150pF R=330 TA=25C ESD rating-kV High ESD NNCD 100 NNCD**MF/MG Broken No Broken 10 NNCD**LG/LH 1 1 10 VBR-Nominal Break Down Voltage-V Circuit Example in RS-232C application Printer Power supply Motor Control circuit NNCD Connector 10 Pamphlet D11663EJ6V0PF 100 High ESD NNCD series can be used for the protection against the surge which appears in the circuit, such as the DC power supply. Voltage Breakdown Voltage Device Voltage Time Time NNCD Surge Reverse Power in the repetition pulse NNCD D/E/F/G TA=25C, Single pulse tT 100 NNCD**A/B/E/F/G NNCD**D NNCD**C 10 NNCD**LG/LH 1 1 10 100 P-Surge Reverse Power-W 1000 PRSM PRSM-Surge Reverse Power-W Surge Reverse Power P t T Duty=10% 1 Duty=t/T (%) TA=25C TA=65C TA=85C Duty=50% TA=25C TA=65C TA=85C 0.1 1m ** 10 10m 0.1 tT-Width of pulse-s 1 10 100 1m 10m t-Width of pulse-s Circuit example Vcc Vcc Vcc IC IN NNCD NNCD (1) The over-voltage absorption of the Vcc line of the IC (2) The over-voltage absorption of the Tr circuit Pamphlet D11663EJ6V0PF NNCD (3) The over-voltage absorption of the FET circuit 11 NEC Noise Clipping Diode NNCD Product Line Up of NNCD SMD products Series **C NNCD**D NNCD**E Breakdown Number of Voltage Type ESD NNCD 3.3 to 12V 30kVmin 15 Power Dissipation Package 150mW 2pin USM (SC-78) 200mW 2pin SSP (SC-76) 3pin MM (SC-59) SMD products (Compound type with anode common) Series NNCD**F Breakdown Number of Voltage Type 3.3 to 12V 3.3 to 7.5 NNCD**G 27V ESD Power Dissipation 3pin MM (Dual) (SC-59) 15 30kVmin 12 200mW NNCD**LG 5.6 to NNCD**LH 6.8V NNCD**MF 6.2V 1 NNCD**MG 5.6 to 6.8V 3 Package 3 8kVmin 5pin MM (Quad) (SC-74A) 5pin SSP (Quad) (SC-88A) 3pin MM (Dual) (SC-59) 30kVmin 5pin MM (Quad) (SC-74A) DHD products Series NNCD**A NNCD**B 12 Breakdown Number of Voltage Type 3.3 to12V 15 ESD 30kVmin Pamphlet D11663EJ6V0PF Power Dissipation Package 400mW DO-34 500mW DO-35 NNCD products line up Low capacitance series Type Power ESD Capacitance Series 5.6V VBR 6.2V 6.8V Low Capacitance 200mW 8kV min. 10pF typ. NNCD**LG NNCD**LH Low Capacitance High ESD 200mW 30kV min. 20pF typ. NNCD**MF NNCD**MG NNCD5.6LG NNCD5.6LH NNCD5.6MG NNCD6.2LG NNCD6.2LH NNCD6.2MF NNCD6.2MG NNCD6.8LG SC-74A (Quad) NNCD6.8LH SC-88A (Quad) SC-59 (Dual) NNCD6.8MG SC-74A (Quad) Package High ESD series 400mW 500mW 150mW 200mW NNCD**A NNCD**B NNCD**C NNCD**D NNCD**E NNCD**F NNCD**G 3.3V NNCD3.3A NNCD3.3B NNCD3.3C NNCD3.3D NNCD3.3E NNCD3.3F NNCD3.3G 3.6V NNCD3.6A NNCD3.6B NNCD3.6C NNCD3.6D NNCD3.6E NNCD3.6F NNCD3.6G 3.9V NNCD3.9A NNCD3.9B NNCD3.9C NNCD3.9D NNCD3.9E NNCD3.9F NNCD3.9G 4.3V NNCD4.3A NNCD4.3B NNCD4.3C NNCD4.3D NNCD4.3E NNCD4.3F NNCD4.3G 4.7V NNCD4.7A NNCD4.7B NNCD4.7C NNCD4.7D NNCD4.7E NNCD4.7F NNCD4.7G 5.1V NNCD5.1A NNCD5.1B NNCD5.1C NNCD5.1D NNCD5.1E NNCD5.1F NNCD5.1G 5.6V NNCD5.6A NNCD5.6B NNCD5.6C NNCD5.6D NNCD5.6E NNCD5.6F NNCD5.6G 6.2V NNCD6.2A NNCD6.2B NNCD6.2C NNCD6.2D NNCD6.2E NNCD6.2F NNCD6.2G 6.8V NNCD6.8A NNCD6.8B NNCD6.8C NNCD6.8D NNCD6.8E NNCD6.8F NNCD6.8G 7.5V NNCD7.5A NNCD7.5B NNCD7.5C NNCD7.5D NNCD7.5E NNCD7.5F NNCD7.5G 8.2V NNCD8.2A NNCD8.2B NNCD8.2C NNCD8.2D NNCD8.2E NNCD8.2F - 9.1V NNCD9.1A NNCD9.1B NNCD9.1C NNCD9.1D NNCD9.1E NNCD9.1F - 10V NNCD10A NNCD10B NNCD10C NNCD10D NNCD10E NNCD10F - 11V NNCD11A NNCD11B NNCD11C NNCD11D NNCD11E NNCD11F - 12V NNCD12A NNCD12B NNCD12C NNCD12D NNCD12E NNCD12F - 27V - DO-34 - DO-35 - 2pin USM (SC-78) - 2pin SSP (SC-76) - - NNCD27G 3 pin MM 3 pin MM 5 pin MM (SC-59) (SC-59 Dual) (SC-59 Quad) Breakdown Voltage Power Series Package Pamphlet D11663EJ6V0PF 13 NEC Noise Clipping Diode NNCD Out line of package SMD products Unit: mm Package 2pin Ultra Super Mini Mold (SC-78) 2pin Super Mini Mold (SC-76) 3pin Mini Mold (SC-59) 2.8 1.5 Out line drawing 1.25 0.8 Appearance 0.7 1.3 Package 0.9 1.7 2.5 2.1 5pin Mini Mold (SC-74A) 2.9 1.25 5pin Super Mini Mold (SC-88A) 2.8 1.5 Out line drawing 2.1 1.25 Appearance 2.9 2.0 1.25 0.9 DHD products Unit: mm DO-35 25 min 25 min 2.4 max Pamphlet D11663EJ6V0PF 0.5 max 0.4 max Out line drawing 14 2.0 max DO-34 2.0 max Package 25 min 25 min 4.2 max Mounting pad dimension (Minimum recommended value) Package 2pin Ultra Super Mini Mold (SC-78) Unit: mm 3pin Mini Mold (SC-59) 2pin Super Mini Mold (SC-76) 0.8 0.8 2.0 2.4 0.9 0.6 Mounting pad dimension 1.0 0.8 2.3 0.95 5pin Mini Mold (SC-74A) Package 0.95 5pin Super Mini Mold (SC-88A) 0.95 0.65 0.65 0.6 0.8 1.9 1.0 0.4 2.4 Mounting pad dimension 0.95 IEC61000-4-2 [ Testing circuit ] [ Testing levels ] 1a-Contact discharge 1b-Air discharge Discharge S.W Rch Rd 330 Discharge electrode Cs H.V.D.C 150pF Earth return cable Pamphlet D11663EJ6V0PF Level Test Voltage Level Test Voltage 1 2 3 4 X 2 kV 4 kV 6 kV 8 kV Special 1 2 3 4 X 2 kV 4 kV 8 kV 15 kV Special 15 MEMO 16 Pamphlet D11663EJ6V0PF MEMO Pamphlet D11663EJ6V0PF 17 MEMO 18 Pamphlet D11663EJ6V0PF * The information in this document is current as of December, 2000. The information is subject to change without notice. For actual design-in, refer to the latest publications of NEC's data sheets or data books, etc., for the most up-to-date specifications of NEC semiconductor products. Not all products and/or types are available in every country. Please check with an NEC 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 prior written consent of NEC. NEC assumes no responsibility for any errors that may appear in this document. * NEC 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 semiconductor 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 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 customer's equipment shall be done under the full responsibility of customer. NEC assumes no responsibility for any losses incurred by customers or third parties arising from the use of these circuits, software and information. * While NEC endeavours to enhance the quality, reliability and safety of NEC semiconductor 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 semiconductor products, customers must incorporate sufficient safety measures in their design, such as redundancy, fire-containment, and anti-failure features. * NEC semiconductor products are classified into the following three quality grades: "Standard", "Special" and "Specific". The "Specific" quality grade applies only to semiconductor products developed based on a customer-designated "quality assurance program" for a specific application. The recommended applications of a semiconductor product depend on its quality grade, as indicated below. Customers must check the quality grade of each semiconductor product 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": Aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems and medical equipment for life support, etc. The quality grade of NEC semiconductor products is "Standard" unless otherwise expressly specified in NEC's data sheets or data books, etc. If customers wish to use NEC semiconductor products in applications not intended by NEC, they must contact an NEC sales representative in advance to determine NEC's willingness to support a given application. (Note) (1) "NEC" as used in this statement means NEC Corporation and also includes its majority-owned subsidiaries. (2) "NEC semiconductor products" means any semiconductor product developed or manufactured by or for NEC (as defined above). M8E 00. 4 Pamphlet D11663EJ6V0PF 19 For further information, please contact: NEC Corporation NEC Building 7-1, Shiba 5-chome, Minato-ku Tokyo 108-8001, Japan Tel: 03-3454-1111 http://www.ic.nec.co.jp/ [North & South America] [Europe] NEC Electronics Inc. 2880 Scott Blvd. Santa Clara, CA 95050-2554, U.S.A. Tel: 408-588-6000 800-366-9782 Fax: 408-588-6130 800-729-9288 http://www.necel.com/ NEC Electronics (Germany) GmbH Kanzlerstr. 2, 40472 Dusseldorf, Germany Tel: 0211-650302 Fax: 0211-6503490 http://www.nec.de/ Munich Office Arabellastr. 17 81925 Munchen, Germany Tel: 089-921003-0 Fax: 089-92100315 NEC do Brasil S.A. Electron Devices Division Rodovia Presidente Dutra, Km 214 07210-902-Guarulhos-SP Brasil Tel: 011-6462-6810 Fax: 011-6462-6829 Stuttgart Office Industriestr. 3 D-70565 Stuttgart, Germany Tel: 0711-99010-0 Fax: 0711-99010-19 Hannover Office Podbielskistr. 164 D-30177 Hannover, Germany Tel: 0511-33402-0 Fax: 0511-33402-34 Benelux Office Boschdijk 187a 5612 HB Eindhoven, The Netherlands Tel: 040-2445845 Fax: 040-2444580 Scandinavia Office P.O. Box 134 18322 Taeby, Sweden Tel: 08-6380820 Fax: 08-6380388 NEC Electronics (UK) Limited Cygnus House, Sunrise Parkway, Linford Wood, Milton Keynes, MK14 6NP, U.K. Tel: 01908-691-133 Fax: 01908-670-290 NEC Electronics (France) S.A. 9, rue Paul Dautier-BP 187 78142 Velizy-Villacoublay Cedex France Tel: 01-3067-5800 Fax: 01-3067-5899 Madrid Office Juan Esplandiu, 15 28007 Madrid, Spain Tel: 091-504-2787 Fax: 091-504-2860 NEC Electronics Italiana s.r.l. Via Fabio Filzi, 25/A, 20124 Milano, Italy Tel: 02-667541 Fax: 02-66754299 [Asia & Oceania] NEC Electronics Hong Kong Limited 12/F., Cityplaza 4, 12 Taikoo Wan Road, Hong Kong Tel: 2886-9318 Fax: 2886-9022/9044 Seoul Branch 10F, ILSONG Bldg., 157-37, Samsung-Dong, Kangnam-Ku Seoul, the Republic of Korea Tel: 02-528-0303 Fax: 02-528-4411 NEC Electronics Taiwan Ltd. 7F, No. 363 Fu Shing North Road Taipei, Taiwan, R. O. C. Tel: 02-2719-2377 Fax: 02-2719-5951 NEC Electronics Singapore Pte. Ltd. 238A Thomson Road #12-01/10 Novena Square Singapore 307684 Tel: 253-8311 Fax: 250-3583 G01. 2 Document No. D11663EJ6V0PF00 (6th edition) Date Published February 2001 N CP(K) (c) NEC Corporation 1996 Printed in Japan