MAX4927 19-0841 Rev 0 6/07 1000 Base-T, 15kV ESD Protection LAN Switch General Description Features The MAX4927 meets the needs of high-speed differen- ESD Protection tial switching, including that of Gigabit Ethernet 15kVIEC 61000-4-2 Air-Gap Discharge (10/100/1000) Base-T switching as well as LVDS and 8kVIEC 61000-4-2 Contact Discharge LVPECL switching. The MAX4927 provides enhanced 15kVHuman Body Model ESD protection up to 15kV and excellent high-fre- Single +3.0V to +3.6V Power-Supply Voltage quency response, making the device especially useful for interfaces that must go to an outside connection. Low 4 (typ), 6.5 (max) On-Resistance (R ) ON The MAX4927 offers extremely low capacitance (C ), ON Ultra-Low 8pF (typ) On-Capacitance (C ) ON as well as low on-resistance (R ), for low-insertion ON -23dB Return Loss (100MHz) loss and very wide bandwidth. In addition to the four pairs of DPDT switches, the MAX4927 provides LED -3dB Bandwidth: 650MHz switching for laptop computer/docking station use. Optimized Pin Out for Easy Transformer and PHY The MAX4927 is pin-to-pin equivalent to the PI3L500-A Interface and STMUX1000L. The MAX4927 can replace either Built-In LED Switches for Switching Indicators to device in those applications, improving ESD protection Docking Station and eliminating external ESD components. The MAX4927 is available in a space-saving 56-pin TQFN Low 450A (max) Quiescent Current package and operates over the extended -40C to Bidirectional 8 to 16 Multiplexer/Demultiplexer +85C temperature range. Standard Pin Out, Matching the PI3L500-A and Applications STMUX1000L Notebooks and Docking Stations Space-Saving Lead-Free Package Servers and Routers with Ethernet Interfaces 56-Pin, 5mm x 11mm, TQFN Package Board-Level Redundancy Protection SONET/SDH Signal Routing T3/E3 Redundancy Protection LVDS and LVPECL Switching Ordering Information Pin Configuration PIN- LED PKG PART PACKAGE SWITCHES CODE TOP VIEW MAX4927ETN+ 56 TQFN-EP* 3 T56511-1 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 GND 49 28 GND +Denotes lead-free package. V 50 27 V DD DD Note: All devices are specified over the -40C to +85C operating 2LED2 51 26 1LED2 temperature range. 2LED1 52 25 0LED2 *EP = Exposed pad. MAX4927 GND 53 24 GND LED2 54 23 1LED1 55 GND 22 0LED1 *EP V 56 + 21 GND DD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Typical Operating Circuit and Functional Diagrams appear at end of data sheet. TQFN 5mm x 11mm *CONNECT EXPOSED PADDLE TO GND OR LEAVE EXPOSED PADDLE UNCONNECTED. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. GND 0B1 A0 1B1 A1 0B2 V DD 1B2 N.C. GND GND 2B1 A2 3B1 A3 2B2 GND 3B2 VDD GND A4 V DD A5 4B1 GND 5B1 A6 4B2 A7 5B2 GND GND SEL 6B1 V DD 7B1 LED0 6B2 LED1 7B21000 Base-T, 15kV ESD Protection LAN Switch ABSOLUTE MAXIMUM RATINGS V -0.3V to +4V Continuous Power Dissipation (T = +70C) DD A All Other Pins-0.3V to (V + 0.3V) 56-Pin TQFN (derate 40.9mW/C above +70C) .......5278mW DD Continuous Current (A to B )......................................120mA Operating Temperature Range . -40C to +85C Continuous Current (LED to LED ) . 40mA Junction Temperature.. +150C Peak Current (A to B ) Storage Temperature Range .. -65C to +150C (pulsed at 1ms, 10% duty cycle) . 240mA Lead Temperature (soldering, 10s) .................................+300C Current into Any Other Pin................................................20mA Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = +3V to +3.6V, T = T = T to T , unless otherwise noted. Typical values are at V = 3.3V, T = +25C.) (Note 1) DD A J MIN MAX DD A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ANALOG SWITCH V = 3V, T = +25C 4 5.5 DD A On-Resistance R I = -40mA, ON A T to T 6.5 V = 0, 1.5V, 3V MIN MAX A On-Resistance Match V = 3V, T = +25C 0.5 1.5 DD A Between Switch Pairs R I = -40mA, ON A T to T 2 (Note 2) V = 0, 1.5V, 3V MIN MAX A On-Resistance Flatness R V = 3V, I = -40mA, V = 1.5V, 3V 0.01 FLAT(ON) DD A A On-Resistance LED Switches R V = 3V, I = - 40mA, V = 0, 1.5V, 3V 40 ONLED D D LE D LED V = 3.6V, V = 0.3V, 3.3V DD A Off-Leakage Current I -1 +1 A LA (OFF) V or V = 3.3V, 0.3V B1 B2 V = 3.6V, V = 0.3V, 3.3V DD A On-Leakage Current I -1 +1 A LA (ON) V or V = 0.3V, 3.3V, or floating B1 B2 ESD PROTECTION IEC 61000-4-2 Air-Gap Discharge 15 IEC 61000-4-2 Contact Discharge 8 ESD Protection kV Human Body Model (spec MIL-STD-883, 15 Method 3015) SWITCH AC PERFORMANCE R = R = 50, unbalanced, f = 1MHz S L Insertion Loss I 0.6 dB LOS (Note 2) Return Loss R f = 100MHz -23 dB LOS Any switch to any V f = 25MHz -50 CT1 switch R = R = S L Crosstalk dB 50, unbalanced, V f = 100MHz -26 CT2 Figure 1 2 MAX4927