LCD05C PROTEC | Alldatasheet
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Technical content
05018.R6 8/03 www.protekdevices.com LOW CAPACITANCE TVS ARRAY Only One Name Means ProTek’Tion™
APPLICATIONS
✔ Ethernet - 10/100 Base T ✔ RS-485 ✔ xDSL & ATM ✔ SCSI & USB ✔ Audio/Video I/O Ports IEC COMPATIBILITY (EN61000-4) ✔ 61000-4-2 (ESD): Air - 15kV, Contact - 8kV ✔ 61000-4-5 (Surge): 24A, 8/20µs Level 2 (Line-Ground) & Level 3 (Line-Line)
FEATURES
✔ 800 Watts Peak Pulse Power per Line (tp=8/20µs) ✔ Bidirectional Configuration ✔ ESD Protection > 40 kilovolts ✔ Available in Five (5) Voltage Types: 5V to 24V ✔ Standard Dual-In-Line Package ✔ Protects Up to Eight (8) Lines ✔ LOW CAPACITANCE: 15pF MECHANICAL CHARACTERISTICS ✔ Molded 16 Pin Dual-In-Line (DIP) Package ✔ Weight 1.2 grams (Approximate) ✔ 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
16 PIN DIP
www.protekdevices.com 05018.R6 8/03 LCD05C thru LCD24C GRAPHS 0 25 50 75 100 125 150 TL - Lead Temperature - °C 100 % Of Rated Power Peak Pulse Power 8/20µs Average Power FIGURE 3 POWER DERATING CURVE FIGURE 5 TYPICAL CLAMPING VOLTAGE VS PEAK PULSE CURRENT FOR LCD05C VC - Clamping Voltage - Volts IPP - Peak Pulse Current - Amps FIGURE 4 OVERSHOOT & CLAMPING VOLTAGE FOR LCD05C ESD Test Pulse: 12 kilovolt, 1/30ns (waveform)
5 Volts per Division
-15
www.protekdevices.com 05018.R6 8/03 LCD05C thru LCD24C 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 LCD Series provides up to eight (8) lines of protection in a common-mode configuration as depicted in Figure 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-. CIRCUIT BOARD LAYOUT RECOMMENDATIONS 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. Figure1. Typical Common- Mode USB Protection Circuit USB OUTPUT CONNECTOR USB OUTPUT CONNECTOR USB IC USB OUTPUT CONNECTOR USB OUTPUT CONNECTOR PORT #1 PORT #2 PORT #4 PORT #3
www.protekdevices.com 05018.R6 8/03 LCD05C thru LCD24C COPYRIGHT © ProTek Devices 2003 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. PACKAGE OUTLINE & DIMENSIONS 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 BULK ORDERING NOMENCLATURE: 1. No Suffix = Product Shipped in Tubes of 25 pcs per Tube. Outline & Dimensions: Rev 1 - 11/01, 06003 PACKAGE OUTLINE A B C D E F G H I J K L 19.8 6.60 7.87 0.50 10° 5.08 1.78
0.84 TYP
0.53
2.54 TYP
0.240 0.290 0.010 0.020 0.125
0.033 TYP
0.015
0.100 TYP
0.780 0.260 0.310 0.020 10° 0.200 0.070 0.021 6.10 7.37 0.25 0.51 3.17 0.38 NOTES: 1. Dimensions are exclusive of mold flash and metal burrs. A Orientation Dot (Pin #1) I
12 Places
J K
16 Places
L H G F B C E D