PI7AT04 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 TM SOTINY Low Voltage, Zero-Delay, Active Transmission Line Clamp Features Description 5V and 3.3V Line Clamping The PI7AT04 actively clamps overshoot and undershoot voltages Near Zero Quiescent Supply Current: 10A Maximum on transmission lines and backplanes. Improperly terminated data Active circuit clamping lines have reflections that can result in lost data or unreliable system behavior. Low Capacitance: 5pF (typ.) High 4kV ESD Protection The PI7AT04 clamps undershoot and overshoot voltages for up to four lines. For other options and packages contact Pericom Packaging (Pb-free & Green Available): Marketing. - 6-pin SC70 (C) Compared to Schottky diodes, the PI7AT04 uses less power and Benefits requires no additional drive power. By avoiding a passive termina- Reduced EMI tion/clamp technology, PI7AT04 power consumption is very low Limits high-frequency ring voltage at 5V. Minimum Power Consumption The PI7AT04 is ideal in applications where characteristic imped- Higher Noise Margin ance varies with system configuration. Changing characteristic impedance is common when memory or function cards are added Minimal Line Loading or removed on a bus. Applications The PI7AT04 does not replace parallel terminator resistors. CPU Termination Backplane Termination Termination Product Pin Description Product Pin Configuration Pin Number Nname Descriptio 6-pin, SC70 1 6 T0 V 10TnLine Terminatio DD 21TnLine Terminatio 6-Pin T1 2 5 T3 C 42TnLine Terminatio GND 3 4 T2 53TnLine Terminatio 3DGdN Groun 6V Positive Supply Voltage DD Functional Block Diagram V DD Control 0 Input 3 PS8588C 08/02/04 1PI7AT04 SOTINY Low Voltage, Zero-Delay, Active Transmission Line Clamp 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 Absolute Maximum Ratings DC Voltage on Any Pin 6.5V Storage Temperature 65C to 150C Lead Temperature (Soldering, 10 seconds) 300C Thermal Information MSOP Continuous Power Dissipation: derate 8.7mW/C above 70C) 650mW SC70/SOT23 Continuous Power Dissipation: derate 7.0mW/C above 70C) 550mW Electrical Characteristics V = 5V Over Operating Temperature Range, unless otherwise noted. DD PlarameterSsymbo Cpondition T.emMpinT.yMsax Unit Line Signal Voltage Above VN6ote 2 0. DD V L2ine Signal Voltage Below GNDN6ote 0. ICnput Line Capacitance Line Voltage = V 255 pF I DD IInput High Current V = V , V=55.5V IH LINE DD DD A IInput Low Current V = 0 , V=55.5V IL LINE V DD SVupply Voltage Range 45.5 5V. DD QIuiescent Supply CurrentA0ll lines floating 2A DD E5SD Protection M4IL-STD-883, Method 301 kV V = 3.3V Over Operating Temperature Range, unless otherwise noted. DD PlarameterSsymbo Cpondition T.emM.inT.ypMsax Unit Line Signal Voltage Above VN6ote 2 0. DD V L2ine Signal Voltage Below GNDN6ote 0. ICnput Line Capacitance Line Voltage = V 255 pF I DD IInput High Current V = V , V=33.6V IH LINE DD DD A IInput Low Current V = 0V, V=33.6V IL LINE DD SVupply Voltage Range 36.0 3V. DD QIuiescent Supply CurrentA0ll lines floating 2A DD E5SD Protection M4IL-STD-883, Method 301 kV Notes: 1. Capacitance and ESD parameters are guaranteed by design. 2. Maximum line voltage clamped during a transient. PS8588C 08/02/04 2