AOZ8204 Four-line TVS Diode Array General Description Features The AOZ8204 is a transient voltage suppressor diode array designed to protect data lines from high transient conditions and ESD. ● This device incorporates four TVS diodes in a single package. Due to the flexibility of the design, the package can be configured as a two channel bidirectional TVS array. During transient conditions, the TVS diodes direct the transient to ground. They may be used to meet the ESD immunity requirements of IEC 61000-4-2, Level 4 (±15kV air, ±8kV contact discharge). The AOZ8204 comes in an RoHS compliant SC-89 package and is rated over a -40°C to +85°C ambient temperature range. ● ● ● ● ● Typical Application Protects four unidirectional or two bidirectional I/O lines Low clamping voltage Low operating voltage: 5.0V Applications ● ● The very small 1.7 x 1.7 x 0.6mm SC-89 package makes it ideal for applications where PCB space is a premium. The small size and high ESD protection makes it ideal for protecting high speed video and data communication interfaces. ESD protection for high-speed data lines: – Exceeds: IEC 61000-4-2 (ESD) ±30kV (air), ±30kV (contact) – Human Body Model (HBM) ±30kV Small package saves board space Low insertion loss ● ● ● ● Portable handheld devices Keypads, data lines Notebook computers Digital Cameras Portable GPS MP3 players Pin Configuration I/O1 I/O2 1 6 2 5 3 4 I/O3 I/O4 Unidirection Protection of Four Lines Top View I/O1 I/O2 3 2 1 4 5 6 Bidirection Protection of Two Lines Rev. 1.3 March 2008 www.aosmd.com Page 1 of 6 AOZ8204 Ordering Information Part Number Ambient Temperature Range Package Environmental AOZ8204KI -40°C to +85°C SC-89 RoHS Compliant All AOS Products are offering in packaging with Pb-free plating and compliant to RoHS standards. Please visit www.aosmd.com/web/quality/rohs_compliant.jsp for additional information. Absolute Maximum Ratings Exceeding the Absolute Maximum ratings may damage the device. Parameter Rating VP – VN 5V Peak Pulse Current (IPP), tP = 8/20µs 5A Storage Temperature (TS) -65°C to +150°C ESD Rating per IEC61000-4-2, Contact(1) ±30kV ESD Rating per IEC61000-4-2, Air(1) ±30kV Model(2) ±30kV ESD Rating per Human Body Notes: 1. IEC 61000-4-2 discharge with CDischarge = 150pF, RDischarge = 330Ω. 2. Human Body Discharge per MIL-STD-883, Method 3015 CDischarge = 100pF, RDischarge = 1.5kΩ. Maximum Operating Ratings Parameter Rating Junction Temperature (TJ) -40°C to +125°C Electrical Characteristics TA = 25°C unless otherwise specified. Specifications in BOLD indicate a temperature range of -40°C to +85°C. Symbol VRWM VBR Parameter Reverse Working Voltage Conditions Min. Max. Units 5.0 V Between pin 5 and 2(3) 2(4) Reverse Breakdown Voltage IT = 1mA, between pins 5 and IR Reverse Leakage Current VRWM = 5V, between pins 5 and 2 VF Diode Forward Voltage IF = 15mA VCL Channel Clamp Voltage Positive Transients Negative Transient IPP = 15A, tp = 100ns, any I/O pin to Ground Channel Clamp Voltage Positive Transients Negative Transient IPP = 25A, tp = 100ns, any I/O pin to Ground Junction Capacitance VR = 0V, f = 1MHz, any I/O pin to Ground Cj Typ. 8.0 0.70 V 0.1 µA 1 V 7.0 -6.75 V V 7.50 -10.25 V V 17 pF 0.85 15 Notes: 3. The working peak reverse voltage, VRWM, should be equal to or greater than the DC or continuous peak operating voltage level. 4. VBR is measured at the pulse test current IT. Rev. 1.3 March 2008 www.aosmd.com Page 2 of 6 AOZ8204 Typical Performance Characteristics Clamping Voltage vs. Peak Pulse Current Clamping Voltage vs. Current (tperiod = 100ns, tr = 1ns) 14 12 11 10 9 8 7 6 5 4 3 2 1 0 Clamping Voltage (V) Clamping Voltage, VCL (V) (tperiod = 100ns, tr = 1ns) 12 10 8 6 4 2 0 5 10 15 20 25 30 5 10 I/O – Gnd Insertion Loss (S21) vs. Frequency 20 25 30 Capacitance vs. Reverse Bias (Vp = 3.3V) 5 20 0 18 Capacitance (pF) Insertion Loss (dB) 15 Current (A) Peak Pulse Current, IPP (A) -5 -10 -15 16 14 12 10 -20 8 6 -25 1 10 100 1000 10000 Rev. 1.3 March 2008 0 1 2 3 4 5 Reverse Bias (Volts) Frequency (MHz) www.aosmd.com Page 3 of 6 AOZ8204 Applications Information Device Connection for Protection of Four Data Lines These devices are designed to protect up to four unidirectional data lines. The device is connected as follows. 1. Unidirectional protection of four I/O lines is achieved by connecting pins 1, 3, 4, and 6 to the data lines. Connect pin 2 to ground. The ground connection should be made directly to the ground plane for best results. The path length is kept as short as possible to reduce the effects of parasitic inductance in the board traces. Device Connection for Protection of Two Bidirectional Data Lines These devices are designed to protect up to two bidirectional data lines. The device is connected as follows. 1. Bidirectional protection of two I/O lines is achieved by connecting pins 1 and 3 to the data lines. Connect pin 4 and 6 to ground. The ground connection should be made directly to the ground plane for best results. The path length is kept as short as possible to reduce the effects of parasitic inductance in the board traces. I/O1 I/O2 1 3 4 1 6 2 5 3 4 6 I/O3 2 Circuit Diagram I/O4 Protection of Four Unidirectional Lines I/O1 I/O2 1 3 4 6 Circuit Diagram 1 6 2 5 3 4 Protection of Two Bidirectional Lines Circuit Board Layout Recommendations for Suppression of ESD Good circuit board layout is critical for the suppression of ESD induced transients. The following guidelines are recommended: ● ● ● ● ● ● Place the TVS near the input terminals or connectors to restrict transient coupling. Minimize the path length between the TVS and the protected line. Minimize all conductive loops including power and ground loops. The ESD transient return path to ground should be kept as short as possible. Never run critical signals near board edges. Use ground planes whenever possible. Rev. 1.3 March 2008 www.aosmd.com Page 4 of 6 AOZ8204 Package Dimensions, SC-89 D E1 E c e b A1 L1 L A RECOMMENDED LAND PATTERN 0.50 1.25 0.45 0.30 UNIT: mm Dimensions in millimeters Symbols A A1 b Min. 0.53 0.00 0.15 c D E E1 e L 0.10 1.50 1.50 1.10 L1 Nom. 0.58 — 0.20 Dimensions in inches Max. 0.62 0.10 0.30 Symbols A A1 b Min. 0.021 0.000 0.006 0.11 1.60 1.60 1.20 0.50 BSC 0.25 0.35 0.18 1.70 1.70 1.30 0.004 0.059 0.059 0.043 0.45 c D E E1 e L 0.13 0.27 L1 0.005 0.20 Nom. 0.023 — 0.008 Max. 0.024 0.004 0.012 0.004 0.007 0.063 0.067 0.063 0.067 0.047 0.051 0.020 BSC 0.010 0.014 0.018 0.008 0.011 Notes: 1. Dimension D does not include mold flash, protrusions or gate burrs. Mold flash, protrusions or gate burrs shall not exceed 0.15mm per end. Dimension E1 does not include interlead flash or protrusion. 2. Dimensions D and E1 are determinded at the outmost extremes of the plastic body exclusive of mold flash, tie bar burrs, gate burrs and interlead flash, but including any mismatch between the top and bottom of the plastic body. 3. Controlling dimension is millimeter, converted inch dimensions are not necessarily exact. 4. All dimensions are in millimeters. Rev. 1.3 March 2008 www.aosmd.com Page 5 of 6 AOZ8204 Package Marking AOZ8204KI (SC-89) LWP Assembly Lot & Location Code Part Number Code Week & Year Code This data sheet contains preliminary data; supplementary data may be published at a later date. Alpha & Omega Semiconductor reserves the right to make changes at any time without notice. LIFE SUPPORT POLICY ALPHA & OMEGA SEMICONDUCTOR PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. Rev. 1.3 March 2008 2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.aosmd.com Page 6 of 6