IP4359CX4 Dual channel low capacitance high performance ESD protection Rev. 1 — 6 August 2010 Product data sheet 1. Product profile 1.1 General description The IP4359CX4 is a dual channel low capacitance ElectroStatic Discharge (ESD) protection device, providing protection to downstream components from ESD voltages as high as ±15 kV contact discharge and > ±15 kV air discharge according the IEC 61000-4-2 model, far exceeding standard level 4. The device is optimized for protection of high speed interfaces such as Universal Serial Bus (USB) 2.0, High Definition Multimedia Interface (HDMI), Digital Visual Interface (DVI) and other interfaces requiring very low capacitance ESD protection. The device is available in two different heights. 0.61 mm and reduced maximum height of 0.5 mm. Both versions contain identical circuits and show an identical electrical performance. Both ESD protection channels share common ground connections, but are electrically separated, thereby preventing current back drive into the adjacent channel. IP4359CX4 is fabricated using monolithic silicon technology in a single Wafer-Level Chip-Scale Package (WLCSP). These features make the IP4359CX4 ideal for use in applications requiring component miniaturization such as mobile phone handsets and other portable electronic devices. 1.2 Features and benefits Pb-free, RoHS compliant and free of halogen and antimony (Dark Green compliant) 2 ultra low input capacity rail-to-rail ESD protection diodes with C(I/O-GND) = 1.3 pF Rdyn = 0.45 Ω Integrated ESD protection withstanding ±15 kV contact discharge and > ±15 kV air discharge, far exceeding IEC 61000-4-2 level 4 Standard height version (0.61 mm) available as IP4359CX4/LF Reduced height version (maximum height of 0.5 mm) available as IP4359CX4/LF-H500 2 × 2 solder ball WLCSP with 0.4 mm pitch 1.3 Applications High-speed interface ESD protection such as USB 2.0, HDMI, DVI etc. Interfaces with special requirements on low capacitive ESD protection Interfaces requiring separation of the positive clamping voltage/current path IP4359CX4 NXP Semiconductors Dual channel low capacitance ESD protection 2. Pinning information Table 1. Pinning Pin Description A1 and A2 ESD protection B1 and B2 ground Simplified outline Graphic symbol bump A1 index area 1 2 A A1 B1 A2 B2 008aaa239 B 008aaa236 transparent top view, solder balls facing down 3. Ordering information Table 2. Ordering information Type number Package height Name Description Version IP4359CX4/LF standard[1] WLCSP4 wafer level chip-size package; 4 bumps (2 × 2) IP4359CX4 IP4359CX4/LF-H500 reduced[2] WLCSP4 wafer level chip-size package; 4 bumps (2 × 2) IP4359CX4 [1] For details see Table 5. [2] For details see Table 6. IP4359CX4 Product data sheet Package All information provided in this document is subject to legal disclaimers. Rev. 1 — 6 August 2010 © NXP B.V. 2010. All rights reserved. 2 of 12 IP4359CX4 NXP Semiconductors Dual channel low capacitance ESD protection 4. Limiting values Table 3. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter Conditions Min Max Unit VI input voltage pins A1 and A2 to ground (B1, B2) −0.5 +5.5 V VESD electrostatic discharge voltage pins A1 and A2 to ground (B1, B2) contact discharge [1] −15 +15 kV air discharge [1] −20 +20 kV contact discharge −8 +8 kV air discharge −15 +15 kV −55 +150 °C Treflow(peak) peak reflow temperature 10 s maximum - 260 °C Tamb −35 +85 °C IEC 61000-4-2 level 4; pins A1 and A2 to ground (B1, B2) Tstg [1] storage temperature ambient temperature Device is qualified with 1000 pulses of ±15 kV contact discharges each, according to the IEC61000-4-2 model and far exceeds the specified level 4 (8 kV contact discharge). 5. Characteristics Table 4. Electrical characteristics Tamb = 25 °C; unless otherwise specified. Symbol Product data sheet Conditions pins A1 and A2 to ground (B1, B2); VI = 3.3 V; f = 1 MHz [1] Min Typ Max Unit - 1.3 1.5 pF C(I/O-GND) input/output to ground capacitance ILR reverse leakage current pins A1 and A2 to ground (B1, B2); VI = 3.3 V - - 100 nA VBRzd Zener diode breakdown Itest = 1 mA voltage 6 - 9 V VF forward voltage - 0.7 - V Rdyn dynamic resistance positive discharge - 0.45 - Ω negative discharge - 0.45 - Ω [1] IP4359CX4 Parameter Itest = 1 A; IEC 61000-4-5 Guaranteed by design. All information provided in this document is subject to legal disclaimers. Rev. 1 — 6 August 2010 © NXP B.V. 2010. All rights reserved. 3 of 12 IP4359CX4 NXP Semiconductors Dual channel low capacitance ESD protection 6. Application information 6.1 Insertion loss The IP4359CX4 is mainly designed as an ESD protection device for high speed interfaces such as USB 2.0, DVI and HDMI high speed data lines etc. The insertion loss measurement configuration of a typical 50 Ω NetWork Analyzer (NWA) system for evaluation of the IP4359CX4 is shown in Figure 1. The insertion loss of IP4359CX4 is depicted in Figure 2. IN OUT DUT 50 Ω 50 Ω TEST BOARD Vgen 001aai755 Fig 1. Frequency response measurement configuration 008aaa237 5 s21 (dB) −5 −15 −25 −35 10−1 1 10 102 103 104 f (MHz) Pin A1 and pin A2 to ground. Fig 2. IP4359CX4 Product data sheet Measured insertion loss magnitude All information provided in this document is subject to legal disclaimers. Rev. 1 — 6 August 2010 © NXP B.V. 2010. All rights reserved. 4 of 12 IP4359CX4 NXP Semiconductors Dual channel low capacitance ESD protection 6.2 Crosstalk The crosstalk measurement configuration of a typical 50 Ω NWA system for evaluation of the IP4359CX4 is shown in Figure 3. The crosstalk measurement results of IP4359CX4 are depicted in Figure 4. IN_1 50 Ω DUT IN_2 OUT_2 OUT_1 TEST BOARD 50 Ω 50 Ω 50 Ω Vgen 001aai756 Fig 3. Crosstalk measurement configuration 008aaa238 0 αct (dB) −20 −40 −60 −80 −100 1 10 102 103 104 f (MHz) Pin A1 to pin A2. Fig 4. IP4359CX4 Product data sheet Measured crosstalk between different channels All information provided in this document is subject to legal disclaimers. Rev. 1 — 6 August 2010 © NXP B.V. 2010. All rights reserved. 5 of 12 IP4359CX4 NXP Semiconductors Dual channel low capacitance ESD protection 7. Package outline WLCSP4: wafer level chip-size package; 4 bumps (2 x 2) D bump A1 index area A2 E A A1 detail X e b B e A 1 2 X European projection wlcsp4_2x2_po Fig 5. Table 5. Package outline IP4359CX4 (WLCSP4) Dimensions of IP4359CX4/LF for Figure 5 Symbol Min Typ Max Unit A 0.57 0.61 0.65 mm A1 0.18 0.20 0.22 mm A2 0.39 0.41 0.43 mm b 0.21 0.26 0.31 mm D 0.71 0.76 0.81 mm E 0.71 0.76 0.81 mm e - 0.4 - mm IP4359CX4 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 6 August 2010 © NXP B.V. 2010. All rights reserved. 6 of 12 IP4359CX4 NXP Semiconductors Dual channel low capacitance ESD protection Table 6. Dimensions of IP4359CX4/LF-H500 for Figure 5 Symbol Min Typ Max Unit A 0.41 0.45 0.49 mm A1 0.18 0.20 0.22 mm A2 0.23 0.25 0.27 mm b 0.21 0.26 0.31 mm D 0.71 0.76 0.81 mm E 0.71 0.76 0.81 mm e - 0.4 - mm 8. Design and assembly recommendations 8.1 PCB design guidelines For optimum performance it is recommended to use a Non-Solder Mask Defined (NSMD), also known as a copper-defined design, incorporating laser-drilled micro-vias connecting the ground pads to a buried ground-plane layer. This results in the lowest possible ground inductance and provides the best high frequency and ESD performance. For this case, refer to Table 7 for the recommended PCB design parameters. Table 7. Recommended PCB design parameters Parameter Value or specification PCB pad diameter 250 μm Micro-via diameter 100 μm (0.004 inch) Solder mask aperture diameter 325 μm Copper thickness 20 μm to 40 μm Copper finish AuNi or OSP PCB material FR4 8.2 PCB assembly guidelines for Pb-free soldering Table 8. IP4359CX4 Product data sheet Assembly recommendations Parameter Value or specification Solder screen aperture diameter 290 μm Solder screen thickness 100 μm (0.004 inch) Solder paste: Pb-free SnAg (3 % to 4 %) Cu (0.5 % to 0.9 %) Solder / flux ratio 50 / 50 Solder reflow profile see Figure 6 All information provided in this document is subject to legal disclaimers. Rev. 1 — 6 August 2010 © NXP B.V. 2010. All rights reserved. 7 of 12 IP4359CX4 NXP Semiconductors Dual channel low capacitance ESD protection T (°C) Treflow(peak) 250 230 cooling rate 217 pre-heat t1 t2 t3 t4 t (s) t5 001aai943 The device is capable of withstanding at least three reflows of this profile. Fig 6. Pb-free solder reflow profile Table 9. IP4359CX4 Product data sheet Characteristics Symbol Parameter Conditions Treflow(peak) peak reflow temperature t1 time 1 t2 t3 Min Typ Max Unit 230 - 260 °C soak time 60 - 180 s time 2 time during T ≥ 250 °C - - 30 s time 3 time during T ≥ 230 °C 10 - 50 s t4 time 4 time during T > 217 °C 30 - 150 s t5 time 5 - - 540 s dT/dt rate of change of temperature cooling rate - - −6 °C/s pre-heat 2.5 - 4.0 °C/s All information provided in this document is subject to legal disclaimers. Rev. 1 — 6 August 2010 © NXP B.V. 2010. All rights reserved. 8 of 12 IP4359CX4 NXP Semiconductors Dual channel low capacitance ESD protection 9. Abbreviations Table 10. Abbreviations Acronym Description DUT Device Under Test DVI Digital Visual Interface ESD ElectroStatic Discharge FR4 Flame Retard 4 HDMI High Definition Multimedia Interface IEC International Electrotechnical Commission NSMD Non-Solder Mask Defined NWA NetWork Analyzer OSP Organic Solderability Preservative PCB Printed-Circuit Board RoHS Restriction of Hazardous Substances USB Universal Serial Bus WLCSP Wafer-Level Chip-Scale Package 10. Revision history Table 11. Revision history Document ID Release date Data sheet status Change notice Supersedes IP4359CX4 v.1 20100806 Product data sheet - - IP4359CX4 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 6 August 2010 © NXP B.V. 2010. All rights reserved. 9 of 12 IP4359CX4 NXP Semiconductors Dual channel low capacitance ESD protection 11. Legal information 11.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification. [1] Please consult the most recently issued document before initiating or completing a design. [2] The term ‘short data sheet’ is explained in section “Definitions”. [3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.nxp.com. 11.2 Definitions Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet — A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. 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NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk. Applications — Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using NXP Semiconductors products, and NXP Semiconductors accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the NXP Semiconductors product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customer(s). Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. NXP Semiconductors does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customer(s). Customer is responsible for doing all necessary testing for the customer’s applications and products using NXP Semiconductors products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customer(s). NXP does not accept any liability in this respect. Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and (proper) operation of the device at these or any other conditions above those given in the Recommended operating conditions section (if present) or the Characteristics sections of this document is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. Terms and conditions of commercial sale — NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.nxp.com/profile/terms, unless otherwise agreed in a valid written individual agreement. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. NXP Semiconductors hereby expressly objects to applying the customer’s general terms and conditions with regard to the purchase of NXP Semiconductors products by customer. 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Export might require a prior authorization from national authorities. IP4359CX4 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 6 August 2010 © NXP B.V. 2010. All rights reserved. 10 of 12 IP4359CX4 NXP Semiconductors Dual channel low capacitance ESD protection Non-automotive qualified products — Unless this data sheet expressly states that this specific NXP Semiconductors product is automotive qualified, the product is not suitable for automotive use. It is neither qualified nor tested in accordance with automotive testing or application requirements. NXP Semiconductors accepts no liability for inclusion and/or use of non-automotive qualified products in automotive equipment or applications. NXP Semiconductors’ specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies NXP Semiconductors for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond NXP Semiconductors’ standard warranty and NXP Semiconductors’ product specifications. In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without NXP Semiconductors’ warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond 11.4 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. 12. Contact information For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] IP4359CX4 Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 1 — 6 August 2010 © NXP B.V. 2010. All rights reserved. 11 of 12 IP4359CX4 NXP Semiconductors Dual channel low capacitance ESD protection 13. Contents 1 1.1 1.2 1.3 2 3 4 5 6 6.1 6.2 7 8 8.1 8.2 9 10 11 11.1 11.2 11.3 11.4 12 13 Product profile . . . . . . . . . . . . . . . . . . . . . . . . . . 1 General description . . . . . . . . . . . . . . . . . . . . . 1 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Pinning information . . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 3 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Application information. . . . . . . . . . . . . . . . . . . 4 Insertion loss . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Crosstalk. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Package outline . . . . . . . . . . . . . . . . . . . . . . . . . 6 Design and assembly recommendations . . . . 7 PCB design guidelines . . . . . . . . . . . . . . . . . . . 7 PCB assembly guidelines for Pb-free soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . 9 Legal information. . . . . . . . . . . . . . . . . . . . . . . 10 Data sheet status . . . . . . . . . . . . . . . . . . . . . . 10 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Contact information. . . . . . . . . . . . . . . . . . . . . 11 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © NXP B.V. 2010. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: [email protected] Date of release: 6 August 2010 Document identifier: IP4359CX4