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MAX4927 Dataheets PDF



Part Number MAX4927
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description ESD Protection LAN Switch
Datasheet MAX4927 DatasheetMAX4927 Datasheet (PDF)

www.DataSheet4U.com 19-0841; Rev 0; 6/07 1000 Base-T, ±15kV ESD Protection LAN Switch General Description The MAX4927 meets the needs of high-speed differential switching, including that of Gigabit Ethernet (10/100/1000) Base-T switching as well as LVDS and LVPECL switching. The MAX4927 provides enhanced ESD protection up to ±15kV and excellent high-frequency response, making the device especially useful for interfaces that must go to an outside connection. The MAX4927 offers extremely low capa.

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www.DataSheet4U.com 19-0841; Rev 0; 6/07 1000 Base-T, ±15kV ESD Protection LAN Switch General Description The MAX4927 meets the needs of high-speed differential switching, including that of Gigabit Ethernet (10/100/1000) Base-T switching as well as LVDS and LVPECL switching. The MAX4927 provides enhanced ESD protection up to ±15kV and excellent high-frequency response, making the device especially useful for interfaces that must go to an outside connection. The MAX4927 offers extremely low capacitance (CON), as well as low on-resistance (RON), for low-insertion loss and very wide bandwidth. In addition to the four pairs of DPDT switches, the MAX4927 provides LED switching for laptop computer/docking station use. The MAX4927 is pin-to-pin equivalent to the PI3L500-A and STMUX1000L. The MAX4927 can replace either device in those applications, improving ESD protection and eliminating external ESD components. The MAX4927 is available in a space-saving 56-pin TQFN package and operates over the extended -40°C to +85°C temperature range. Features ♦ ESD Protection ±15kV–IEC 61000-4-2 Air-Gap Discharge ±8kV–IEC 61000-4-2 Contact Discharge ±15kV–Human Body Model ♦ Single +3.0V to +3.6V Power-Supply Voltage ♦ Low 4Ω (typ), 6.5Ω (max) On-Resistance (RON) ♦ Ultra-Low 8pF (typ) On-Capacitance (CON) ♦ -23dB Return Loss (100MHz) ♦ -3dB Bandwidth: 650MHz ♦ Optimized Pin Out for Easy Transformer and PHY Interface ♦ Built-In LED Switches for Switching Indicators to Docking Station ♦ Low 450µA (max) Quiescent Current ♦ Bidirectional 8 to 16 Multiplexer/Demultiplexer ♦ Standard Pin Out, Matching the P13L500-A and STMUX1000L ♦ Space-Saving Lead-Free Package 56-Pin, 5mm x 11mm, TQFN Package MAX4927 Applications Notebooks and Docking Stations Servers and Routers with Ethernet Interfaces Board-Level Redundancy Protection SONET/SDH Signal Routing T3/E3 Redundancy Protection LVDS and LVPECL Switching Pin Configuration PART GND GND GND Ordering Information PINPACKAGE 56 TQFN-EP* LED SWITCHES 3 PKG CODE T56511-1 TOP VIEW 0B1 1B1 0B2 1B2 VDD 4B1 5B1 2B1 3B1 2B2 3B2 4B2 5B2 6B1 7B1 6B2 7B2 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 GND 49 VDD 50 2LED2 51 2LED1 52 GND 53 LED2 54 GND 55 VDD 56 + 1 GND 2 A0 3 A1 4 VDD 5 N.C. 6 GND 7 A2 8 A3 9 GND *EP 10 11 12 13 14 15 16 17 18 19 20 GND A7 SEL LED0 LED1 A4 A5 GND VDD A6 VDD 28 GND 27 VDD 26 1LED2 25 0LED2 MAX4927ETN+ MAX4927 24 GND 23 1LED1 22 0LED1 21 GND +Denotes lead-free package. Note: All devices are specified over the -40°C to +85°C operating temperature range. *EP = Exposed pad. *CONNECT EXPOSED PADDLE TO GND OR LEAVE EXPOSED PADDLE UNCONNECTED. TQFN 5mm x 11mm Typical Operating Circuit and Functional Diagrams appear at end of data sheet. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1000 Base-T, ±15kV ESD Protection LAN Switch MAX4927 ABSOLUTE MAXIMUM RATINGS VDD………………………………………………………-0.3V to +4V All Other Pins…………………………………-0.3V to (VDD + 0.3V) Continuous Current (A_ to _B_) ......................................±120mA Continuous Current (LED_ to _LED_) .…………………… ±40mA Peak Current (A_ to _B_) (pulsed at 1ms, 10% duty cycle) ……………………. ±240mA Current into Any Other Pin................................................±20mA Continuous Power Dissipation (TA = +70°C) 56-Pin TQFN (derate 40.9mW/°C above +70°C) .......5278mW Operating Temperature Range …………………. -40°C to +85°C Junction Temperature.……………………………………. +150°C Storage Temperature Range .…………………. -65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C 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 (VDD = +3V to +3.6V, TA = TJ = TMIN to TMAX, unless otherwise noted. Typical values are at VDD = 3.3V, TA = +25°C.) (Note 1) PARAMETER ANALOG SWITCH On-Resistance RON VDD = 3V, IA_ = -40mA, VA_ = 0, 1.5V, 3V VDD = 3V, IA_ = -40mA, VA_ = 0, 1.5V, 3V TA = +25°C TMIN to TMAX TA = +25°C TMIN to TMAX 0.01 40 -1 -1 +1 +1 0.5 4 5.5 Ω 6.5 1.5 Ω 2 Ω Ω µA µA SYMBOL CONDITIONS MIN TYP MAX UNITS On-Resistance Match Between Switch Pairs (Note 2) On-Resistance Flatness On-Resistance LED Switches Off-Leakage Current On-Leakage Current ESD PROTECTION ΔRON RFLAT(ON) RONLED ILA_(OFF) ILA_(ON) VDD = 3V, IA_ = -40mA, VA_ = 1.5V, 3V VDD = 3V, I_LED_ = -40mA, VLED_ = 0, 1.5V, 3V VDD = 3.6V, VA_ = 0.3V, 3.3V; V_B1 or V_B2 = 3.3V, 0.3V VDD = 3.6V, VA_ = 0.3V, 3.3V; V_B1 or V_B2 = 0.3V, 3.3V, or floating IEC 61000-4-2 Air-Gap.


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