MAX4927ETN+ Maxim Integrated Products, MAX4927ETN+ Datasheet

IC ETHERNET SWITCH QUAD 56TQFN

MAX4927ETN+

Manufacturer Part Number
MAX4927ETN+
Description
IC ETHERNET SWITCH QUAD 56TQFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX4927ETN+

Function
Ethernet Switch
Circuit
4 x 2:2
On-state Resistance
5.5 Ohm
Voltage Supply Source
Single Supply
Voltage - Supply, Single/dual (±)
3 V ~ 3.6 V
Current - Supply
280µA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
56-TFQFN, Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX4927 meets the needs of high-speed differen-
tial 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-fre-
quency response, making the device especially useful for
interfaces that must go to an outside connection.
The MAX4927 offers extremely low capacitance (C
as well as low on-resistance (R
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.
19-0841; Rev 0; 6/07
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.
TOP VIEW
2LED2
2LED1
*CONNECT EXPOSED PADDLE TO GND OR
LED2
LEAVE EXPOSED PADDLE UNCONNECTED.
GND
GND
GND
V
V
DD
DD
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
1000 Base-T, ±15kV ESD Protection LAN Switch
49
50
51
52
53
54
55
56
48 47 46 45 44 43
1
+
2
3
4
________________________________________________________________ Maxim Integrated Products
5
6
42 41 40 39 38 37 36 35 34 33 32 31 30 29
7
General Description
8
5mm x 11mm
9 10 11 12 13 14 15 16 17 18 19 20
MAX4927
Pin Configuration
TQFN
ON
Applications
), for low-insertion
*EP
28
27
26
25
24
23
22
21
GND
V
1LED2
0LED2
GND
1LED1
0LED1
GND
DD
ON
),
♦ ESD Protection
♦ Single +3.0V to +3.6V Power-Supply Voltage
♦ Low 4Ω (typ), 6.5Ω (max) On-Resistance (R
♦ Ultra-Low 8pF (typ) On-Capacitance (C
♦ -23dB Return Loss (100MHz)
♦ -3dB Bandwidth: 650MHz
♦ Optimized Pin Out for Easy Transformer and PHY
♦ Built-In LED Switches for Switching Indicators to
♦ Low 450µA (max) Quiescent Current
♦ Bidirectional 8 to 16 Multiplexer/Demultiplexer
♦ Standard Pin Out, Matching the PI3L500-A and
♦ Space-Saving Lead-Free Package
+Denotes lead-free package.
Note: All devices are specified over the -40°C to +85°C operating
temperature range.
*EP = Exposed pad.
Typical Operating Circuit and Functional Diagrams appear
at end of data sheet.
MAX4927ETN+
Interface
Docking Station
STMUX1000L
±15kV–IEC 61000-4-2 Air-Gap Discharge
±8kV–IEC 61000-4-2 Contact Discharge
±15kV–Human Body Model
56-Pin, 5mm x 11mm, TQFN Package
PART
PIN-
PACKAGE
56 TQFN-EP*
Ordering Information
SWITCHES
LED
3
Features
ON
)
T56511-1
ON
CODE
PKG
)
1

Related parts for MAX4927ETN+

MAX4927ETN+ Summary of contents

Page 1

... Low 450µA (max) Quiescent Current ♦ Bidirectional Multiplexer/Demultiplexer ♦ Standard Pin Out, Matching the PI3L500-A and Applications STMUX1000L ♦ Space-Saving Lead-Free Package 56-Pin, 5mm x 11mm, TQFN Package PART MAX4927ETN+ +Denotes lead-free package. 28 GND Note: All devices are specified over the -40°C to +85°C operating ...

Page 2

Base-T, ±15kV ESD Protection LAN Switch ABSOLUTE MAXIMUM RATINGS V ………………………………………………………-0.3V to +4V DD All Other Pins…………………………………-0. Continuous Current (A_ to _B_) ......................................±120mA Continuous Current (LED_ to _LED_) .…………………… ±40mA Peak Current (A_ to _B_) (pulsed at ...

Page 3

Base-T ±15kV ESD Protection LAN Switch ELECTRICAL CHARACTERISTICS (continued +3V to +3.6V MIN PARAMETER SYMBOL SWITCH AC CHARACTERISTICS -3dB Bandwidth Off-Capacitance On-Capacitance Turn-On Time Turn-Off Time Propagation ...

Page 4

Base-T, ±15kV ESD Protection LAN Switch SEL 50 50% t OFF 50% Figure 2. Turn-On and Turn-Off Times A_ t PLH _B_ PULSE SKEW = SK(p) PHL PLH THE MAX4927 SWITCHES ...

Page 5

Base-T, ±15kV ESD Protection LAN Switch (V = 3.3V +25°C, unless otherwise noted ON-RESISTANCE vs +85° -40° +25° ...

Page 6

Base-T, ±15kV ESD Protection LAN Switch PIN NAME 13, 16, 21, 24, 28, 33, GND Ground 39, 44, 49, 53 Switch 0. Common terminal Switch 1. Common terminal 1. 4, ...

Page 7

Base-T, ±15kV ESD Protection LAN Switch PIN NAME 51 2LED2 2LED2 Output. Drive SEL high (SEL = 1) to connect LED2 to 2LED2. 52 2LED1 2LED1 Output. Drive SEL low (SEL = 0) to connect LED2 to 2LED1. 54 ...

Page 8

Base-T, ±15kV ESD Protection LAN Switch Human Body Model Figure 5a shows the Human Body Model. Figure 5b shows the current waveform it generates when dis- charged into a low impedance. This model consists of a 100pF capacitor charged ...

Page 9

Base-T, ±15kV ESD Protection LAN Switch 1MΩ 1500Ω DISCHARGE CHARGE-CURRENT- RESISTANCE LIMIT RESISTOR HIGH STORAGE VOLTAGE 100pF CAPACITOR DC SOURCE Figure 5a. Human Body ESD Test Model I 100 90% ...

Page 10

Base-T, ±15kV ESD Protection LAN Switch DOCKING STATION NOTEBOOK TRD0_P TRD0_N TRD1_P TRD1_N ETHERNET PHY/MAC TRD2_P TRD2_N TRD3_P TRD3_N LED_OUT SEL_DOCK 10 ______________________________________________________________________________________ CONNECTOR 0B2 1B2 2B2 3B2 4B2 A0 5B2 A1 6B2 7B2 A2 _LED2 A3 MAX4927 A4 ...

Page 11

Base-T, ±15kV ESD Protection LAN Switch LED0 LED1 LED2 SEL ______________________________________________________________________________________ Functional Diagram 0B1 1B1 0B2 1B2 2B1 3B1 2B2 3B2 4B1 5B1 4B2 5B2 6B1 7B1 6B2 7B2 0LED1 0LED2 ...

Page 12

Base-T, ±15kV ESD Protection LAN Switch (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 12 ______________________________________________________________________________________ Package Information ...

Page 13

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13 © 2007 Maxim Integrated Products Package Information (continued registered trademark of Maxim Integrated Products, Inc ...

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