SPE1244 3-Line ESD Protection Array DESCRIPTION The SPE1244 are designed by TVS array that is to protect sensitive electronics from damage or latch-up due to ESD. They are designed for use in applications where board space is at a premium. SPE1244 will protect up to three line, and may be used on lines where the signal polarities swing above and below ground. SPE1244 offer desirable characteristics for board level protection including fast response time, low operating and clamping voltage, and no device degradation. SPE1244 may be used to meet the immunity requirements of IEC 61000-4-2, level 4. The small SOT-143 package makes them ideal for use in portable electronics such as cell phones, PDA’s, notebook computers, and digital cameras. APPLICATIONS ADSL Industrial Electronics RS-422 Interfaces Portable Electronics Microcontroller Input Protection WAN/LAN Equipment FEATURES Transient protection for data lines to IEC 61000-4-2 (ESD) ±15kV (air), ±8kV (contact) IEC 61000-4-4 (EFT) 40A (5/50ns) Protects four I/O lines Working voltage: 12V Low leakage current Low operating and clamping voltages PIN CONFIGURATION ( SOT-143-A ) PART MARKING ( SOT-143-A ) 2009/12/30 Ver.1 Page 1 SPE1244 3-Line ESD Protection Array ORDERING INFORMATION Part Number Package Part SPE1244S14ARGB SOT-143-A ※ Week Code : A ~ Z( 1 ~ 26 ) ; a ~ z( 27 ~ 52 ) ※ SPE1244S14ARGB : Tape Reel ; Pb – Free ; Halogen – Free Marking 14YW ABSOULTE MAXIMUM RATINGS (TA=25℃ Unless otherwise noted) Parameter Symbol Typical Unit Peak Pulse Power ( tp = 8/20 μs ) Ppk 250 W Maximum Peak Pulse Current ( tp = 8/20 μs ) Ipp 8 A ESD per IEC 61000 – 4 – 2 (Air ) Vpp ±15 KV ESD per IEC 61000 – 4 – 2 (Contact ) Vpp ±8 KV TJ -55 ~ 125 ℃ Storage Temperature Range TSTG -55 ~ 150 ℃ Lead Soldering Temperature TL 260 ( 10sec ) ℃ Operating Junction Temperature ELECTRICAL CHARACTERISTICS (TA=25℃ Unless otherwise noted) Parameter Reverse Stand – Off Voltage Reverse Breakdown Voltage Symbol Conditions Min. Typ VRWM VBR It = 1mA Max. Unit 12 V 13.3 V Reverse Leakage Current IR VRWM = 12V , T=25℃ 1 μA Clamping Voltage VC Ipp = 1A , tp = 8/20 μs 19 V Clamping Voltage VC 25 V Junction Capacitance Cj Ipp = 8A , tp = 8/20 μs Between I/O Pin and GND VR = 0V , f = 1MHz 20 pF 2009/12/30 Ver.1 16 Page 2 SPE1244 3-Line ESD Protection Array TYPICAL CHARACTERISTICS Clamping Voltage (Ipp = 1A , tp = 8/20 μs ) Clamping Voltage (Ipp = 8A , tp = 8/20 μs ) 2009/12/30 Ver.1 Page 3 SPE1244 3-Line ESD Protection Array T TYPICAL CHARACTERISTICS Fig 1 : Junction Capacitance V.S Reverse Voltage Applied Fig 3 : Clamp Voltage V.S Peak Pulse Current 2009/12/30 Ver.1 Fig 2 : Peak Plus Power V.S Exponential Plus Duration Fig 4 : Forward Voltage Drop V.S Peak Forward Page 4 SPE1244 3-Line ESD Protection Array APPLICATION NOTE Device Connection for Protection of Four Data Lines SPE1244 is designed to protect up to three data lines. The device is connected as follows: 1. The TVS protection of four I/O lines is achieved by connecting pins 1, 2, 4. Pin 3 are connected to ground. The ground connection should be made directly to the ground plane for best results. The path length is kept as short as possible to reduce the effects of parasitic inductance. Circuit Board Layout Recommendations for Suppression of ESD Good circuit board layout is critical for the suppression of ESD induced transients. The following guidelines are recommended: 1. Place the TVS near the input terminals or connectors to restrict transient coupling. 2. Minimize the path length between the TVS and the protected line. 3. Minimize all conductive loops including power and ground loops. 4. The ESD transient return path to ground should be kept as short as possible. 5. Never run critical signals near board edges. 6. Use ground planes whenever possible. 2009/12/30 Ver.1 Page 5 SPE1244 3-Line ESD Protection Array SOT-143-A PACKAGE OUTLINE 2009/12/30 Ver.1 Page 6 SPE1244 3-Line ESD Protection Array Information provided is alleged to be exact and consistent. SYNC Power Corporation presumes no responsibility for the penalties of use of such information or for any violation of patents or other rights of third parties which may result from its use. No license is granted by allegation or otherwise under any patent or patent rights of SYNC Power Corporation. Conditions mentioned in this publication are subject to change without notice. This publication surpasses and replaces all information previously supplied. SYNC Power Corporation products are not authorized for use as critical components in life support devices or systems without express written approval of SYNC Power Corporation. ©The SYNC Power logo is a registered trademark of SYNC Power Corporation ©2004 SYNC Power Corporation – Printed in Taiwan – All Rights Reserved SYNC Power Corporation 7F-2, No.3-1, Park Street NanKang District (NKSP), Taipei, Taiwan, 115, R.O.C Phone: 886-2-2655-8178 Fax: 886-2-2655-8468 ©http://www.syncpower.com 2009/12/30 Ver.1 Page 7