EClamp2357NQ EMI Filter and ESD Protection for Secure Digital Card Interfaces PROTECTION PRODUCTS - EMIClamp® Description Features ® The EClamp 2357NQ is a low pass filter array with integrated TVS diodes. It is designed to suppress unwanted EMI/RFI signals and provide electrostatic discharge (ESD) protection in portable electronic equipment. They have been optimized for protection of touch screen displays, secure digital (SD) card interfaces, and color LCD panels in cellular phones and other portable electronics. u EMI/RFI filter with integrated ESD protection u ESD protection to IEC 61000-4-2 (ESD) Level4, ±15kV (air), ±8kV (contact) u Filter performance: >30dB attenuation at 1.8GHz u TVS working voltage: 5V u Resistor: 100Ω +/− 15% u Component Capacitance: 10pF (VR = 0V) u EMI & ESD protection for six lines u Dedicated ESD protection for four lines u Solid-state technology u AEC-Q100 Grade 1 Qualified. The device consists of six pi filter circuits comprised of TVS diodes for ESD protection, and a resistor capacitor network for EMI/RFI filtering. A series resistor value of 100Ω and a component capacitance value of 10pF are used to achieve 20dB minimum attenuation from 1.0GHz to 3GHz. The device also includes 4 discrete TVS diodes for dedicated ESD protection. All of the TVS diodes provide effective suppression of ESD voltages in excess of ±15kV (air discharge) and ±8kV (contact discharge) per IEC 61000-4-2, level 4. The EClamp2357NQ is qualified to AEC-Q100 Grade 1 for Automotive use. Mechanical Characteristics u u u u u 16 pin QFN RoHS/WEEE Compliant Nominal Dimensions: 3.0 x 3.0 x 1.0 mm Lead Pitch: 0.5mm Lead Finish: Matte Tin u Marking: Marking Code u Packaging: Tape and Reel per EIA 481 Applications u u u u u u Package Dimensions Touch Screen Display Interfaces Secure Digital (SD) Memory Card Interfaces Multimedia Card Interfaces (MCI) Color LCD Panel Protection Cell Phone Handsets and Accessories Automotive Applications. Schematic & Pin Configuration 3.00 $ = 6 > 16 $ $ 1 0.30 3.00 ? /9 @ A $ 6 0.50 =; A $ > B 9CD 6 > 0.60 EClamp2357NQ-2-R1 &#.0 <4$4 ? 16 Pin QFN (Top Side View) Nominal Dimensions (in mm) Revision 6/24/2013 &9 .5 5 1 www.semtech.com EClamp2357NQ PROTECTION PRODUCTS Absolute Maximum Ratings Rating Symbol Value Units VESD ±20 ±12 kV Junction Temperature TJ 125 O Operating Temperature TOP -40 to +125 O Storage Temperature TSTG -55 to +150 O ESD per IEC61000-4-2 (Air) ESD per IEC61000-4-2 (Contact) C C C Electrical Characteristics (T=25OC unless otherwise specified) Parameter Symbol Conditions Min. TVS Reverse Stand-Off Voltage VRWM TVS Reverse Breakdown Voltage VBR It =1mA T = -40 to +125OC TVS Reverse Leakage Current IR VRWM = 3.3V T = -40 to +125OC Total Series Resistance R Each Line T = -40 to +125OC Total Capacitance CIN Input to Gnd Each Line f = 1MHz VR = 0V 2 85 Max. Units 5 V 10 V 0.5 µA 100 115 Ω 20 22 8 pF VR = 2.5V 2013 Semtech Corporation. 6 Typ. 12 15 www.semtech.com EClamp2357NQ PROTECTION PRODUCTS Typical Characteristics Typical Insertion Loss S21 (Each Filter) Analog Crosstalk (Each Line) 0 0 TA = 25OC -20 TA = 25OC Filter Input to Output -40 Crosstalk - CT (dB) Insertion Loss -IL (dB) -10 -20 -30 -60 -80 -40 -100 AR_ILvF CTvF -50 10 100 1000 Frequency (MHz) -120 10000 10 1000 10000 Frequency (MHz) ESD Clamping (+8kV Contact) ESD Clamping (-8kV Contact) 150 50 TA = 25OC Corrected for 40dB attenuation. Measured with 50Ω, 40dB attenuator; 50Ω Scope Input Impedance. 0 Clamping Voltage - VC (V) 100 Clamping Voltage - VC (V) 100 50 0 -50 TA = 25OC Corrected for 40dB attenuation. Measured with 50Ω, 40dB attenuator; 50Ω Scope Input Impedance. -100 AR_ESD_+8 AR_ESD_-8 -50 -150 -20 0 20 40 Time (ns) 60 80 100 -20 Capacitance vs. Temperature 0 20 40 Time (ns) 60 80 100 Series Resistance vs. Temperature 105 25 Test Current = 1mA 104 No Filter VR = 0V Series Resistance - RS (Ω) Junction Capacitance - CJ (pF) 20 No Filter VR = 2.5V Filter VR = 0V 15 Filter VR = 2.5V 10 103 102 101 5 AR_RSvT AR_CAPvT 100 0 -50 0 2013 Semtech Corporation. 50 Temperature (OC) 100 -50 150 3 0 50 Temperature (OC) 100 150 www.semtech.com EClamp2357NQ PROTECTION PRODUCTS Typical Characteristics (Continued) Breakdown Voltage vs. Temperature Capacitance vs. Reverse Voltage 25 8.0 IBR = 1mA Pin to GND IAny BR = 1mA Pin 6, 8, 13 or 15 to GND 20 15 7.6 Capacitance - CJ(pf) Breakdown Voltage - VBR (V) 7.8 TA = 25OC f = 1 MHz 7.4 7.2 Filter Pins Non Filter Pins 10 5 AR_CAPvV AR_VBR_1 7.0 0 -50 0 50 Temperature (OC) 100 150 0.0 TLP Charcteristics Positive 1.0 1.5 Reverse Voltage - VR(V) 2.0 2.5 TLP Charcteristics Positive 30 0 TA = 25OC TLP Parameters: tp = 100ns; tr = 200ps RDYN = 0.466Ω Best Fit 4A to 16A 25 TA = 25OC TLP Parameters: tp = 100ns; tr = 200ps RDYN = 0.248Ω Best Fit 4A to 16A -5 -10 TLP Current (A) 20 TLP Current (A) 0.5 15 10 -15 -20 -25 5 AR_TLP+ AR_TLP- -30 0 0 5 10 15 TLP Voltage (V) 20 -12 25 -10 -8 -6 TLP Voltage (V) -4 -2 0 Leakage Current vs. Temperature Leakage Current - IR (nA) 40 30 VR = 3.3V Pin to 6, 8, GND 13 or 15 to GND Filter Pins are 1, 2, 3 ,4, 5, 7, 9, 10, 11, 12, 14 and 16 Non-Filter Pins are: 6, 8, 13 and 15. 20 Non-Filter Pins Filter Pins 10 AR_IRvT 0 -50 0 2013 Semtech Corporation. 50 Temperature (OC) 100 150 4 www.semtech.com EClamp2357NQ PROTECTION PRODUCTS Applications Information Device Connection Pin Identification and Configuration (Top Side View) The EClamp2357NQ is comprised of six circuits each consisting of a low pass filter for EMI/RFI suppression and dual TVS diodes for ESD protection. It also includes 4 lines of TVS diodes for ESD protection of power lines or high speed I/O lines. The device is housed in a 16-pin Quad Flat No-Lead (QFN) package. Electrical connection is made via 16 pins located at the bottom of the device. A center tab serves as the ground connection. Pin connections are noted in the table to the right. The device is designed for easy PCB routing as shown in the application examples. All path lengths should be kept as short as possible to minimize the effects of parasitic inductance in the board traces. $/ $. $- $# $ $& & $$ # $ - % . / 0 1 &#.0 <4#4 Matte Tin Lead Finish Pin Identification Matte tin has become the industry standard lead-free replacement for SnPb lead finishes. A matte tin finish is composed of 100% tin solder with large grains. Since the solder volume on the leads is small compared to the solder paste volume that is placed on the land pattern of the PCB, the reflow profile will be determined by the requirements of the solder paste. Therefore, these devices are compatible with both lead-free and SnPb assembly techniques. In addition, unlike other lead-free compositions, matte tin does not have any added alloys that can cause degradation of the solder joint. 3, 4, 5, 7, 9, 10 Input EMI/ESD Protected Lines 1, 2, 11, 12, 14, 16 Output EMI/ESD Protected Lines 6, 8, 13, 15 Input/Output ESD Protected Lines Center Tab Ground Pin Configuration and Schematic # & E F 0 $- 6E E F ? ? - ? $ E F $& E F ? . ? $ $$ 6E E F ? ? / $. ? 6E ? $/ E F ? % 6E ? 6E 6E ? ? 1 $# ? &#.0 <4-4 2013 Semtech Corporation. 5 www.semtech.com EClamp2357NQ PROTECTION PRODUCTS Applications Information &#.0 < , * ) & & # # * # - & $ . * $/ 5 5 / $. ? EG EG 0 $- ( ( $# % $ $$ * 1 $& $ $ &#.0 <4.4 ) ) &#.0 < E - # ) & ! ) $ . $/ / $. ? 0 $- , ) 5 1 $# $ $$ $& E % * ) G G " ) ! ) -4F 5 &#.0 <4/4 2013 Semtech Corporation. 6 www.semtech.com EClamp2357NQ PROTECTION PRODUCTS Outline Drawing - 16L QFN ,? , $ , 3+ , ,? , ? ?, 8 &$ 8 8 B 8$$= 8 22 8$$= 8 22 8 $= - C5 $ & 7 $ & $ , 4 + + $ 0 $ 777 1 ? 8 &= 8 $ 3 8 .5 8 $ 8$$A 8 2% 8$$A 8 2% 8 & 8 $. 8 A 8 &2 8 # 8 = ? @ 8 &. 8 & 8 $& 8$&& 8 .# 8$&& 8 .# 8 $A - , ?,++,? ?, ? 822 8. 8 8 & 8$2 8& 8&2 &8% #8 $8= $82 &8% #8 $8= $82 82 8#2 8= 8& 8.&2 8 A 8$ ? @ 8.2 8 2 8# #8$ $8. #8$ $8. 8=2 - $%&2= -&- 3$.95+ $ 3A950 3$.957 777 ? Land Pattern - 16L QFN 1 ,? , 4 1 C &9 4 &9 &9 0 @ D 0 @ 2013 Semtech Corporation. ,? , 1 ?,++,? 38$$=5 3&8% 5 8 A# &8$ 8 .# $8. 8 .# $8. 8 . 8$2 8 & 82 8 $& 8# 8 #$ 8A 8$=. #8B $%&2= -#- =9 D 7 www.semtech.com EClamp2357NQ PROTECTION PRODUCTS Marking $/ $ & # - Ordering Information $. $# $- $# &#.0 HHFF . 0 / $- $. $/ $& $& $ $$ $$ & $ $ # % % 0 1 5 7 ! 7 * 2 / Qty per Reel Reel Size EClamp2357NQTCT 3000 7 Inch Note: EClamp and EMIClamp are registered marks of Semtech Corporation. - 1 Part Number . 5 7 ! 7 $ 6) &#.0 <414 Notes: 1) YYWW = Date Code 2) Pin 1 indicated by “Mouse Bite” on the ground pad Tape and Reel Specification 3"8)9 3 " & "3 )3 9 3# 9 3# : 3# ; #38 + 3 #3<89 3# $38 9 3 8 =3 $3$ 9 3# ; #3 #" ?&B 3= 9 3# : 3"8 + 3 9 3# 2357N YYWW $3$ 9 3 # & & +& #3> &(( .? 2357N YYWW #*"8)"+#+ )3 & C . : 3$ + 3# EClamp2357NQ-9-R0 . . ?.((.? @ ( , A. . . Tape Specifications Device Orientation in Tape Contact Information for Semtech International AG Taiwan Branch Tel: 886-2-2748-3380 Fax: 886-2-2748-3390 Japan (Tokyo) Office Tel: 81-3-5719-7560 Fax: 81-3-5719-7561 Korea Branch Tel: 82-2-527-4377 Fax: 82-2-527-4376 Semtech Limited (U.K.) Tel: 44-1794-527-600 Fax: 44-1794-527-601 Shanghai Office Tel: 86-21-6391-0830 Fax: 86-21-6391-0831 Semtech France SARL Tel: 33-(0)169-28-22-00 Fax: 33-(0)169-28-12-98 Japan (Osaka) Office Tel: 81-6-6347-6570 Fax: 81-6-6347-6571 Semtech Germany GmbH Tel: 49-(0)8161-140-123 Fax: 49-(0)8161-140-124 Semtech International AG is a wholly-owned subsidiary of Semtech Corporation, which has its headquarters in the U.S.A. 2013 Semtech Corporation. 8 www.semtech.com