05110 PSRDA3.3-6 thru PSRDA05-6 . . . engineered solutions for the transient environment™ LOW CAPACITANCE STEERING DIODE & TVS ARRAYS APPLICATIONS ✔ Ethernet - 10/100 Base T ✔ Computer I/O Ports- SCSI, FireWire & USB ✔ Set Top Box Protection 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-Gnd) & Level 3(Line-Line) SO-8 FEATURES ✔ 500 Watts Peak Pulse Power Dissipation(tp = 8/20µs) ✔ Bidirectional Configuration ✔ Available in 3.3V & 5V ✔ Protects Up to Six (6) I/O Ports ✔ ESD Protection > 40 kilovolts ✔ LOW CAPACITANCE -15pF MECHANICAL CHARACTERISTICS ✔ Molded JEDEC SO-8 ✔ Weight 15 milligrams (Approximate) ✔ Flammability Rating UL 94V-0 ✔ 12mm Tape and Reel Per EIA Standard 481-1-A ✔ Device Marking Code & Logo ✔ Pin 1 Indicated By Dot on Package CIRCUIT DIAGRAM 05110.R2 1/02 I/O 1 1 8 GND I/O 2 2 7 I/O 6 +VREF 3 6 I/O 5 I/O 3 4 5 I/O 4 1 www.protekdevices.com PSRDA3.3-6 thru PSRDA05-6 DEVICE CHARACTERISTICS MAXIMUM RATINGS @ 25°C Unless Otherwise Specified PARAMETER Operating Temperature Storage Temperature Maximum Forward Voltage @ 100 mA (See Note 1) SYMBOL VALUE UNITS TJ -55°C to 150°C °C TSTG -55°C to 150°C °C VF 1.1 Volts Note 1: Measured between pins 8 to 1, 2, 3, 4, 5, 6, or 7. ELECTRICAL CHARACTERISTICS PER LINE @ 25°C Unless Otherwise Specified PART NUMBER (See Note 1) DEVICE MARKING SGG SGH PSRDA3.3-6 PSRDA05-6 RATED STAND-OFF VOLTAGE MINIMUM BREAKDOWN VOLTAGE MAXIMUM CLAMPING VOLTAGE (See Fig. 2) MAXIMUM CLAMPING VOLTAGE (See Fig. 2) VWM VOLTS @ 1mA V(BR) VOLTS @ IP = 1A VC VOLTS 3.3 5.0 4.0 6.0 6.5 9.8 MAXIMUM LEAKAGE CURRENT MAXIMUM CAPACITANCE (See Note 2) (See Figure 5) @8/20µs VC @ IPP @VWM ID µA 0V @ 1 MHz C pF 10.9V @ 43.0A 13.5V @ 42.0A 125 20 15 15 Note 1: Spice model and parameters for this series are available on the ProTek Devices web site: www.protekdevices.com. Note 2: Capacitance measured at VWM = VCC connected between I/O pins to pin 8(Gnd). VR = VWM @ 1MHz. As shown in Figure 5, REF1 is connected to ground, REF2 is connected to +VCC, and input applies to VCC = 5V, Vsign = mV, F = 1 MHz. FIGURE 1 PEAK PULSE POWER VS PULSE TIME IPP - Peak Pulse Current - % of IPP PPP - Peak Pulse Current - Watts 10,000 500W, 8/20µs Waveshape 1,000 100 10 0.01 05110.R2 1/02 FIGURE 2 PULSE WAVE FORM 120 tf 100 Peak Value IPP 80 e-t TEST WAVEFORM PARAMETERS tf = 8µs td = 20µs 60 40 td = t I /2 PP 20 0 1 10 100 td - Pulse Duration - µs 1,000 10,000 2 0 5 10 15 t - Time - µs 20 25 www.protekdevices.com 30 PSRDA3.3-6 thru PSRDA05-6 GRAPHS FIGURE 3 POWER DERATING CURVE 100 40 Peak Pulse Power 8/20µs 5 Volts per Division 80 % Of Rated Power FIGURE 4 OVERSHOOT & CLAMPING VOLTAGE FOR PSRDA05-6 60 40 30 20 10 20 0 Average Power 0 0 25 50 75 100 125 TL - Lead Temperature - °C 150 ESD Test Pulse: 8 kilovolt, 1/30ns (waveshape) FIGURE 5 INPUT CAPACITANCE CIRCUIT FIGURE 6 TYPICAL CLAMPING VOLTAGE VS PEAK PULSE CURRENT 12 I/O VR VC - Clamping Voltage - Volts REF2 +VCC G 8 PSRDA05-6 4 0 0 5 REF1 10 15 20 IPP - Peak Pulse Current - Amps 25 30 FIGURE 7 TYPICAL REVERSE VOLTAGE VS CAPACITANCE 8 C - Capacitance - pF 6 PSRDA05-6 4 2 0 0 05110.R2 1/02 1 2 3 VR - Reverse Voltage - Volts 3 4 5 www.protekdevices.com PSRDA3.3-6 thru PSRDA05-6 APPLICATION NOTE The PSRDAxx-6 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 500 Watts PPP per line for an 8/20µs waveshape and offers ESD protection > 40kv. DIFFERENTIAL MODE CONFIGURATION (Figure 1) Ideal for use in USB applications, the PSRDAxx-6 Series provides up to six (6) lines of protection in a differential mode configuration as depicted in Figure 1. Circuit connectivity is as follows: ✔ Pins 1, 2, 4, 5, 6 and 7 are connected to the datalines. ✔ Pin 8 is connected to ground. ✔ Pin 3 is connected to the databus. USB PORT VBUS D+ DGND CIRCUIT BOARD LAYOUT RECOMMENDATIONS USB PORT ✔ The protection device should be placed near the input terminals or connectors, the device will divert the transient current immediately before it can be coupled into the nearby traces. ✔ The path length between the TVS device 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. ✔ USB CONTROLLER Circuit board layout is critical for Electromagnetic Compatibility (EMC) protection. The following guidelines are recommended: VBUS D+ DGND GND 8 7 1 2 VBUS 6 5 3 4 USB PORT VBUS D+ DGND Figure 1. Typical Differential-Mode USB Protection Ground planes should be used whenever possible. For multilayer PCBs, use ground vias. 05110.R2 1/02 4 www.protekdevices.com PSRDA3.3-6 thru PSRDA05-6 PACKAGE OUTLINE & DIMENSIONS PACKAGE OUTLINE SO-8 -A- 8 5 -B- 0.010” (0.25 MM) P M B M 4 PL 1 PACKAGE DIMENSIONS 4 DIM D G C R X 45º 0º - 10º -TJ K 0.010” (0.25 MM) M T B S F A S 8 PL MOUNTING PAD 4.80 3.80 1.35 0.35 0.40 1.27 BSC 0.18 0.10 5.80 0.25 INCHES MIN MAX 5.00 0.189 0.196 4.00 0.150 0.157 1.75 0.054 0.068 0.49 0.014 0.019 1.250 0.016 0.049 1.27 BSC 0.05 BSC 0.05 BSC 0.25 0.007 0.009 0.25 0.004 0.008 6.20 0.229 0.244 0.50 0.010 0.019 NOTES: 1. - T - = Seating Plane and Datum Surface. 2. Dimensions “A” and “B” are Datum. 3. Dimensions “A” and “B” do not include mold protrusion. 4. Maximum mold protrusion is 0.015” (0.380 mm) per side. 5. Dimensioning and tolerances per ANSI Y14.5M, 1982. 6. Dimensions are exclusive of mold flash and metal burrs. 0.050” ± 0.005” 0.030” ± 0.005” 0.160” ± 0.005” A B C D F G J K P R MILLIMETERS MIN MAX 0.245” MIN 0.045” ± 0.005” 06009 Rev 1 -11/01 TAPE & REEL PACKAGING: Surface mount product is taped and reeled in accordance with EIA-481, reel quantites and sizes are as follows: 7 Inch Reel - 1,000 pieces per reel; 13 Inch Reel - 2,500 pieces per reel ProTek Devices 2929 South Fair Lane, Tempe, AZ 85282 Tel: 602-431-8101 Fax: 602-431-2288 E-Mail: [email protected] Web Site: www.protekdevices.com COPYRIGHT © ProTek Devices 2001 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. 05110.R2 1/02 5 www.protekdevices.com