ESDA6V1BC6 ® QUAD BIDIRECTIONAL TRANSIL™ SUPPRESSOR FOR ESD PROTECTION ASD™ MAIN APPLICATIONS Where transient overvoltage protection in ESD sensitive equipment is required, such as: ■ Computers ■ Printers ■ Communication systems ■ Video equipment This device is particularly adapted to the protec- tion of symmetrical signals SOT23-6L FEATURES ■ 4 Bidirectional Transil functions ■ ESD Protection for data, Signal and V Bus Table 1: Order Code CC ■ Stand off voltage range: ± 5 V Part Number Marking ■ Low leakage current < 1µA ESDA6V1BC6 BS55 ■ Peak pulse power (8/20µs); 80W DESCRIPTION Figure 1: Functional Diagram The ESDA6V1BC6 is a monolithic array designed to protect up to 4 lines in a bidirectional way against ESD transients. The device is ideal for situations where board 1 6 space is at a premium. 2 5 BENEFITS ■ High ESD protection level: up to 25kV ■ High integration 3 4 ■ Suitable for high density boards COMPLIES WITH THE FOLLOWING STANDARDS: ■ IEC61000-4-2 level 4: 15kV (air discharge) 8kV (contact discharge) ■ MIL STD 883E-Method 3015-6: class3 (Human Body Model) TM: ASD is a trademark of STMicroelectronics. November 2004 REV. 2 1/6

ESDA6V1BC6 Table 2: Absolute Maximum Ratings (T = 25°C) amb Symbol Parameter Value Unit MIL STD 883C - Method 3015-6 25 VPP ESD discharge IEC61000-4-2 air discharge 15 kV IEC61000-4-2 contact discharge 8 PPP Peak pulse power (8/20µs) 80 W Tj Junction temperature 150 °C Tstg Storage temperature range -55 to +150 °C Maximum lead temperature for soldering during 10 s at 5mm for TL case 260 °C Top Operating temperature range (note 1) -40 to +125 °C Note 1: Variation of parameters is given by curves. Table 3: Electrical Characteristics (T = 25°C) amb I Symbol Parameter VRM Stand-off voltage VBR Breakdown voltage VBR VCL Clamping voltage IRM Leakage current VCL VRM V I I Peak pulse current RM PP αT Voltage temperature coefficient VF Forward voltage drop C Capacitance Rd I Rd Dynamic resistance PP VBR @ IR IRM @ VRM Rd αT C min. max. max. typ. max. typ. Type note 2 0V bias V V mA µA V Ω 10-4/°C pF ESDA6V1BC6 6.1 8 1 1 5 1.35 3 20 Note 2: Square pulse, IPP = 3A, tp=2.5µs. Figure 2: Relative variation of peak pulse Figure 3: Peak pulse power versus exponential power versus initial junction temperature pulse duration PPP[Tjinitial] / PPP[Tjinitial=25°C] PPP(W) 1.1 500 1.0 0.9 0.8 0.7 100 0.6 0.5 0.4 0.3 0.2 0.1 Tj(°C) tp(µs) 0.0 10 0 25 50 75 100 125 150 175 1 10 100 2/6

ESDA6V1BC6 Figure 4: Clamping voltage versus peak pulse Figure 5: Junction capacitance versus line current (typical values, rectangular waveform) voltage applied (typical values IPP(A) C(pF) 20.0 22 21 F = 1MHz 10.0 20 VOTSjC== 2 350°CmV 19 18 17 16 1.0 15 14 13 12 VCL(V) Tjitnpit=ia 2l .=5 µ2s5°C 11 VR(V) 0.1 10 0 5 10 15 20 25 30 35 40 0 1 2 3 4 5 6 7 8 Figure 6: Relative variation of leakage current versus junction temperature (typical values) IR[Tj] / IR[Tj=25°C] 500 100 10 Tj(°C) 1 25 50 75 100 125 150 1. ESD protection by ESDA6V1-4BC6 With the focus of lowering the operation levels, the problem of malfunction caused by the environment is critical. Electrostatic discharge (ESD) is a major cause of failure in electronic system. Transient Voltage Suppressors are an ideal choice for ESD protection and have proven capable in sup- pressing ESD events. They are capable of clamping the incoming transient to a low enough level such that damage to the protected semiconductor is prevented. Surface mount TVS arrays offer the best choice for minimal lead inductance. They serve as parallel protection elements, connected between the signal line to ground. As the transient rises above the operating voltage of the device, the TVS array becomes a low impedance path diverting the transient current to ground. 3/6 ®

ESDA6V1BC6 Figure 7: Bidirectional protection for 0V biased signals DRIVER CONNECTOR The ESDA6V1BC6 array is the ideal product for use as board level protection of ESD sensitive semicon- ductor components. The tiny SOT23-6L package allows design flexibility in the design of “crowded” boards where the space saving is at a premium. This enables to shorten the routing and can contribute to improve ESD perform- ance. 2. Circuit Board Layout Circuit board layout is a critical design step in the suppression of ESD induced transients. The following guidelines are recommended : ■ The ESDA6V1BC6 should be placed as near as possible to the input terminals or connectors. ■ Minimise the path length between the ESD suppressor and the protected device ■ Minimise all conductive loops, including power and ground loops ■ The ESD transient return path to ground should be kept as short as possible. ■ Use ground planes whenever possible. Figure 8: Ordering information scheme ESDA 6V1 - B C6 ESD Array BreakdownVoltage (min) 6V1 = 6.1Volt Type of protection B = Bidirectional Package C6 = SOT23-6L 4/6

ESDA6V1BC6 Figure 9: SOT23-6L Package Mechanical Data DIMENSIONS REF. Millimeters Inches A2 A Min. Typ. Max. Min. Typ. Max. A 0.90 1.45 0.035 0.057 D A1 0 0.10 0 0.004 A2 0.90 1.30 0.035 0.051 A1 b b 0.35 0.50 0.014 0.02 C 0.09 0.20 0.004 0.008 L D 2.80 3.05 0.110 0.120 E 1.50 1.75 0.059 0.069 H E θ e 0.95 0.037 H 2.60 3.00 0.102 0.118 c L 0.10 0.60 0.004 0.024 e e θ 10° 10° Figure 10: Foot Print Dimensions (in millimeters) 0.60 1.20 0.95 3.50 2.30 1.10 Table 4: Ordering Information Part Number Marking Package Weight Base qty Delivery mode ESDA6V1BC6 BS55 SOT23-6L 16.7 mg 3000 Tape & reel Table 5: Revision History Date Revision Description of Changes Jan-2002 1A First issue. 4-Nov-2004 2 SOT23-6L package dimensions change for reference “D” from 3.0 millimeters (0.118 inches) to 3.05 millimeters (0.120 inches). 5/6 ®

ESDA6V1BC6 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners © 2004 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 6/6

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: S TMicroelectronics: ESDA6V1BC6