Next Previous Silicon Protection Circuits TVS Rail Clamp Diode Array with an Avalanche Diode SP0506CA, SP0518CAA NEW This family of rail clamp or “diode steering” arrays are designed for very low capacitance ESD protection and is offered in small surface mount packages. An Avalanche diode has been added between VP and VN to suppress transients on the supply rails. The multi-channel devices are used to help protect high speed sensitive digital or analog input circuits on data, signal, or control lines with unipolar voltage levels up to 5VDC. The state-of-the-art structure is designed to suppress ESD and other transient over-voltage events to meet the International Electrotechnical Compatibility (IEC) transient immunity standards IEC 61000-4-2 for Electrostatic Discharge Requirements. Ordering Information Part Number CH Package Type SP0506CAAT SP0506CABT SP0518CAAT 6 6 18 MSOP8 SOIC8 QSOP24 Quantity Per Reel 4000 2500 2500 Schematic SP0506CAAT and SP0506CABT 8 CH 6 CH 1 1 7 V+ 6 CH 5 CH 2 V- 2 Features • A low capacitance 2, 6 and 18 channel array of rail clamp current steering diodes in small surface mount packages • ESD Protection Capability (SP0506CA) - IEC 61000-4-2, Direct Discharge . . . . . . . . . . . . . . . . 8kV (Level 4) - MIL STD 3015.7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15kV • ESD Protection Capability (SP0518CA) - IEC 61000-4-2, Direct Discharge . . . . . . . . . . . . . . . 15kV (Level 4) - MIL STD 3015.7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15kV • Input Protection for Applications Up to 5VDC • Low Input Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 7pF Typical • Low Clamp Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . Vrail + 13V Max • Low Input Leakage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100nA Typ • Operating Temperature Range . . . . . . . . . . . . . . . . . . . . 20°C to 85°C Applications • • • • 5 CH 4 Computer ports Personal Digital Assistants (PDA) Portable handheld equipment (Laptop, Palmtop computers) Computer port, keyboard (USB1.1) CH 3 3 4 SP0518CAAT V+ CH18 CH17 CH16 CH15 CH14 V24 23 22 21 20 19 18 CH13 CH12 CH11 CH10 V+ 17 16 15 14 13 1 2 3 4 5 6 7 V+ CH1 CH2 CH3 CH4 CH5 V- 8 9 10 11 12 CH6 CH7 CH8 CH9 V+ w w w. l i t t e l f u s e . c o m 209 5 SILICON PROTECTION CIRCUITS The monolithic silicon devices are comprised of specially designed low capacitance structures for transient voltage suppression (TVS). The size and shape of these structures have be tailored for transient protection. The very low capacitance and clamp voltage are ideal for ultra high speed signal line protection. Next Previous Silicon Protection Circuits TVS Rail Clamp Diode Array with an Avalanche Diode SP0506CA, SP0518CAA Electrical Specifications TA = 25°C Unless Otherwise Specified PARAMETER UNITS TEST CONDITIONS MIN TYPICAL MAX Vp - Vn Vp - Vn = 5.5V - - 5.5 V 10 µA 0.1 µA Positive VP + 13 V Negative VN - 13 V 0.95 V SP0506x 20 mA SP0518 40 mA VP + 0.5 V Operating Supply Voltage Supply Current Channel Leakage Current 0.1 Signal Clamp Voltage 15kV ESD HBM 0.65 Diode Forward Voltage Maximum Forward current VN - 0.5 Maximum DC Input voltage ESD Test Level (SP0506x) IEC-61000-4-2, Contact discharge 8 kV MIL-STD-883 Method 3015 (HBM) 15 kV IEC-61000-4-2, Contact discharge 15 kV MIL-STD-883 Method 3015 (HBM) 15 kV ESD Test Level (SP0518) Capacitance SP0506x 2.5VDC @ 1Mhz SP0518 2.5VDC @ 1Mhz Turn on/off Time 3 6 pF 7 12 pF ns <1 Temperature Range Operating - 20 +85 °C Storage - 65 +150 °C Typical Capacitance SP0506x SP0518 12 6 10 8 CIN (pF) CIN (pF) 4 6 4 2 2 0 0 0 1 2 3 4 5 0 210 1 2 3 4 VIN VIN Typical Variation of CIN with VIN Typical Variation of CIN with VIN (VP=5V, VN=0V, 0.1µF chip capacitor between VP & VN) (VP=5V, VN=0V, 0.1µF chip capacitor between VP & VN) w w w. l i t t e l f u s e . c o m 5 Next Previous Silicon Protection Circuits TVS Rail Clamp Diode Array with an Avalanche Diode SP0506CA, SP0518CAA Outline Drawings Package MSOP 8 Recommended Pad Layout G Z E1 X 506 C A C A1 max min max E 2.90 3.10 .114 .122 E1 2.90 3.10 .114 .122 E2 4.78 4.98 .188 .196 .046 A 0.87 1.17 .034 A1 0.05 0.25 .002 .010 B - 0.30TYP - .012TYP B1 - 0.65TYP - .25TYP C - 0.18TYP - .007TYP C1 0.52 0.54 .017 .025 F - 0.65 - .0256 F1 - 0.38 - .015 Z - 5.28 - .208 X - 1.04 - .041 G - 4.24 - .167 C1 B1 B SP0506CAA - MSOP 8 Package Recommended Pad Layout F1 F E LF E2 G Z E1 SP0506 CAB X X1 A C A1 C1 B SP0506CAB - SOIC 8 max min max E 4.80 5.00 .189 .197 E1 3.80 4.19 .150 .165 E2 5.80 6.20 .228 .244 A 1.35 1.75 .053 .069 A1 0.10 0.25 .004 .010 B 0.33 0.51TYP .013 .020TYP B1 - 1.27TYP - 0.050TYP C 0.19 0.25 .007 .010 C1 0.40 1.27 .016 .050 F - 1.27 - .05 F1 0.60 0.80 .02 .03 Z 7.20 7.40 - .29 X - 2.40 - .09 X - 3.81REF - .15REF G - 5.00REF - .19REF Package QSOP 24 E LF SP0518 CAA min max min max E 8.56 8.73 .337 .344 E1 3.81 3.98 .150 .157 E2 5.79 6.19 .228 .244 A 1.35 1.75 .053 .069 A1 0.10 0.25 .004 .010 B A C A1 inches mm E2 E1 inches min 1 B1 SOIC 8 mm B1 C1 B 0.20TYP 0.30TYP .008TYP .012TYP B1 - 0.64TYP - .025TYP C 0.18 0.25 .007 .010 C1 0.40 1.27 .016 .050 SP0518CAA - QSOP 24 w w w. l i t t e l f u s e . c o m 211 5 SILICON PROTECTION CIRCUITS E E2 min F1 F LF inches mm