LCA08C

05003 LCA05C thru LCA24C LOW CAPACITANCE TVS ARRAY APPLICATIONS ✔ Ethernet - 10/100 Base T ✔ RS-458 ✔ xDSL & ATM ✔ SCSI & USB ✔ Audio/Video I/O Ports IEC COMPATIBILITY ( EN61000-4) ✔ 61000-4-2 (ESD): Air - 15kV, Contact - 8kV ✔ 61000-4-4 (EFT): 40A - 5/50ns ✔ 61000-4-5 (Surge): 24A, 8/20µs Level 2 (Line-Ground) & Level 3 (Line-Line) 16 PIN DIP FEATURES ✔ 800 Watts Peak Pulse Power per Line (tp=8/20µs) ✔ Bidirectional Configuration ✔ ESD Protection > 40 kilovolts ✔ Available in 5 Voltage Types: 5V to 24V ✔ Standard Dual-In-Line Package ✔ Protects up to 6 Lines ✔ Low Capacitance: 15pF ✔ RoHS Compliant MECHANICAL CHARACTERISTICS ✔ ✔ ✔ ✔ Molded 16 Pin Dual-In-Line (DIP) Package Weight 1.2 grams (Approximate) Available in Lead-Free Pure-Tin Plating(Annealed) Solder Reflow Temperature: Pure-Tin - Sn, 100: 260-270°C ✔ Consult Factory For Leaded Device Availability ✔ Flammability Rating UL 94V-0 ✔ Packaging: 25 Pieces Per Tube ✔ Marking: Logo, Part Number, Date Code & Pin One Defined By Dot on Top of Package PIN CONFIGURATION 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 05003.R7 2/07 1 www.protekdevices.com LCA05C thru LCA24C DEVICE CHARACTERISTICS MAXIMUM RATINGS @ 25°C Unless Otherwise Specified PARAMETER Peak Pulse Power (tp = 8/20µs) - See Figure 1 Operating Temperature Storage Temperature SYMBOL PPP TL TSTG VALUE 800 -55 to 150 -55 to 150 UNITS Watts °C °C ELECTRICAL CHARACTERISTICS PER LINE PART NUMBER (See Note 1) RATED STAND-OFF VOLTAGE MINIMUM BREAKDOWN VOLTAGE MAXIMUM CLAMPING VOLTAGE (See Fig. 2) @ IP = 1A VC VOLTS 9.8 12.3 19.0 25.5 40.0 @ 25°C Unless Otherwise Specified MAXIMUM LEAKAGE CURRENT MAXIMUM CAPACITANCE TEMPERATURE COEFFICIENT OF V(BR) qV(BR) mV/°C MAXIMUM CLAMPING VOLTAGE (See Fig. 2) V WM VOLTS LCA05C LCA08C LCA12C LCA15C LCA24C 5.0 8.0 12.0 15.0 24.0 @ 1mA V(BR) VOLTS 6.0 8.5 13.3 16.7 26.7 @8/20µs VC @ IPP 24V @ 45A 25.5V @ 40A 32V @ 34A 38V @ 27A 48V @ 22A @VWM ID µA 100 10 4 4 4 0V @ 1 MHz C pF 15 15 15 15 15 3 9 16 17 26 Note 1: Tested on pin pairs 1 & 16, 2 & 15, 3 &14, 4 & 13, 5 & 12, 6 & 11, 7 & 10 and 8 & 9. 10,000 PPP - Peak Pulse Power - Watts FIGURE 1 PEAK PULSE POWER VS PULSE TIME IPP - Peak Pulse Current - % of IPP 120 100 80 60 40 20 0 tf FIGURE 2 PULSE WAVE FORM Peak Value IPP TEST WAVEFORM PARAMETERS tf = 8µs td = 20µs 800W 8/20µs Waveform 1,000 e-t 100 td = t I /2 PP 10 0.1 1 10 100 td - Pulse Duration - µs 1,000 10,000 0 5 10 15 20 t - Time - µs 25 30 05003.R7 2/07 2 www.protekdevices.com LCA05C thru LCA24C GRAPHS FIGURE 3 POWER DERATING CURVE 100 80 % Of Rated Power Peak Pulse Power 8/20µs 60 40 20 Average Power 0 0 25 50 75 100 125 TL - Lead Temperature - °C 150 FIGURE 4 OVERSHOOT & CLAMPING VOLTAGE FOR LCA05C 25 5 Volts per Division 15 5 -5 -15 ESD Test Pulse: 12 kilovolt, 1/30ns (waveform) FIGURE 5 TYPICAL CLAMPING VOLTAGE VS PEAK PULSE CURRENT FOR LCA05C 16 VC - Clamping Voltage - Volts 12 8 4 0 0 2 4 6 8 10 12 IPP - Peak Pulse Current - Amps 14 16 18 05003.R7 2/07 3 www.protekdevices.com LCA05C thru LCA24C APPLICATION NOTE The LCA Series are low capacitance, bidirectional TVS arrays that are designed to protect I/O or high speed data lines from the damaging effects of ESD or EFT. This product series has a surge capability of 800 Watts PPP per line for an 8/20µs waveshape and offers ESD protection > 40kV. BIDIRECTIONAL COMMON-MODE CONFIGURATION (Figure 1) Ideal for use in USB applications, the LCA Series provides up to six (6) lines of protection in a common-mode configuration as depicted in Figure 1. Circuit connectivity is as follows: ✔ Pins 2, 3, 4, 5, 6, and 7 are connected to ground. ✔ Pins 15 and 14 connected to Port #1 D- and D+. ✔ Pins 13 and 12 connected to Port #2 D+ and D-. ✔ Pins 11 and 10 connected to Port #3 D+ and D-. Figure1. Typical Common- Mode USB Protection Circuit PORT #1 D+ USB OUTPUT CONNECTOR USB OUTPUT CONNECTOR PORT #2 D+ D- CIRCUIT BOARD LAYOUT RECOMMENDATIONS D- Circuit board layout is critical for Electromagnetic Compatibility (EMC) protection. The following guidelines are recommended: ✔ The protection device should be placed near the input terminals or connectors. By placing the TVS close to the connectors, the device will divert the transient current immediately before it can be coupled into the nearby traces. The path length between the TVS devices and the protected line should be minimized All conductive loops including power and ground loops should be minimized The transient current return path to ground should be kept as short as possible to reduce parasitic inductance. Ground planes should be used whenever possible. For Multilayer PCBs, use ground vias. 15 14 13 12 USB IC 2 3 4 5 USB OUTPUT CONNECTOR D+ D1 1 10 PORT #3 ✔ ✔ ✔ 6 7 ✔ 05003.R7 2/07 4 www.protekdevices.com LCA05C thru LCA24C 16 PIN DIP PACKAGE OUTLINE & DIMENSIONS PACKAGE OUTLINE 16 PIN DIP A DIMENSIONS Orientation Dot (Pin #1) B C F F J 12 Places H L K 16 Places I 12 Places DIM A B C D E F G H I J K L MILLIMETERS MIN MAX 7.37 6.10 0.25 0° 0.51 3.17 0.84 TYP 0.38 2.54 TYP INCHES MIN MAX G D 16 Places E 0.780 19.8 0.290 0.310 7.87 0.240 0.260 6.60 0.010 0.020 0.50 0° 10° 10° 0.020 0.200 5.08 0.125 0.070 1.78 0.84 TYP 0.033 TYP 0.033 TYP 0.015 0.021 0.53 2.54 TYP 0.100 TYP 0.100 TYP NOTES: 1. Dimensions are exclusive of mold flash and metal burrs. BULK ORDERING NOMENCLATURE: 1. No Suffix = Product Shipped in Tubes of 25 pcs per Tube. 2. Suffix - LF = Lead-Free, Pure-Tin Plating, i.e., LCA05C-LF. Outline & Dimensions: Rev 1 - 11/01, 06003 COPYRIGHT © ProTek Devices 2007 SPECIFICATIONS: ProTek reserves the right to change the electrical and or mechanical characteristics described herein without notice (except JEDEC). DESIGN CHANGES: ProTek reserves the right to discontinue product lines without notice, and that the final judgement concerning selection and specifications is the buyer’s and that in furnishing engineering and technical assistance, ProTek assumes no responsibility with respect to the selection or specifications of such products. ProTek Devices 2929 South Fair Lane, Tempe, AZ 85282 Tel: 602-431-8101 Fax: 602-431-2288 E-Mail: sales@protekdevices.com Web Site: www.protekdevices.com www.protekdevices.com 05003.R7 2/07 5