MAX4906EFELB-T Maxim Integrated, MAX4906EFELB-T Datasheet

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MAX4906EFELB-T

Manufacturer Part Number
MAX4906EFELB-T
Description
Power Switch ICs - USB
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX4906EFELB-T

Supply Voltage - Min
2.7 V
Supply Voltage - Max
3.6 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Number Of Switches
Dual
Switch Configuration
SPDT
The MAX4906EF are electrostatic discharge (ESD)-pro-
tected analog switches that combine low on-capacitance
(C
performance switching applications. The COM_ inputs
are protected against ±15kV ESD without latchup or dam-
age. The device is designed for USB 2.0 high-speed
applications at 480Mbps. The switches also handle all the
requirements for USB low- and full-speed signaling.
The MAX4906EF features two single-pole/double-throw
(SPDT) switches. The device is fully specified to operate
from a single +2.7V to +3.6V power supply and is protect-
ed against a +5.5V short to all analog inputs (COM_, NC_,
NO_). This feature makes the MAX4906EF fully compliant
with the USB 2.0 specification of +5.5V fault protection.
The device features a low threshold voltage and a +1.4V
V
The device features a QP input that when driven high,
turns the charge pump off and sets the device in standby
mode. When the device is in standby mode, the quies-
cent supply current is reduced to 3µA (max) and the
switches remain operable.
The MAX4906EF is available in a space-saving, 2mm x
2mm µDFN package and operates over a -40°C to +85°C
temperature range.
19-0613; Rev 2; 3/09
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.
IH
Typical Operating Characteristics
ON
USB Switching
Cell Phones
PDAs
Digital Still Cameras
GPS
Notebook Computers
, permitting them to be used with low-voltage logic.
) and low on-resistance (R
V+ = 3.3V
I
UI = 2.08ns
BIAS
= 9mA
________________________________________________________________ Maxim Integrated Products
EYE DIAGRAM
HIGH SPEED
TRANSMIT
TEMPLATE
200ps/div
USB 2.0
General Description
Relay Replacements
Ethernet Switching
Video Switching
Bus Switches
T3/E3 Switches for
Redundancy Protection
ON
High-/Full-Speed USB 2.0 Switches
) necessary for high-
Applications
V
100mV/div
V
NO1OUT
NO2OUT
♦ ±15kV (Human Body Model) ESD Protection,
♦ Fully Specified for a Single +2.7V to +3.6V
♦ Low 4Ω (typ), 7Ω (max) On-Resistance (R
♦ -3dB Bandwidth: 500MHz (typ)
♦ Low Bit-to-Bit Skew ≤ 20ps
♦ Charge-Pump Noise = 90µV (typ)
♦ Charge-Pump Enable
♦ No Need for Logic-Level Shifters for 1.4V or
♦ COM
♦ Low Supply Current 3µA (max) in Standby
♦ Space-Saving 10-Pin, 2mm x 2mm µDFN Package
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
MAX4906EFELB+T
on COM_
Power-Supply Voltage
Above
Shorts to USB Supply Rail Up to +5.5V
TOP VIEW
PART
_
Analog Inputs Fault-Protected Against
COM1
COM2
GND
QP
IN
1
2
3
4
5
-40°C to +85°C
with High ESD
TEMP RANGE
+
Ordering Information
MAX4906EF
μDFN
Pin Configuration
10
9
8
7
6
PACKAGE
10 μDFN
V+
NC1
NC2
NO1
NO2
PIN-
Features
ON
MARK
)
TOP
AAJ
1

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MAX4906EFELB-T Summary of contents

Page 1

... No Need for Logic-Level Shifters for 1.4V or Above ♦ COM Analog Inputs Fault-Protected Against _ Shorts to USB Supply Rail Up to +5.5V ♦ Low Supply Current 3µA (max) in Standby ♦ Space-Saving 10-Pin, 2mm x 2mm µDFN Package PART MAX4906EFELB+T Applications + Denotes a lead(Pb)-free/RoHS-compliant package Tape and reel. TOP VIEW V NO1OUT 100mV/div V ...

Page 2

High-/Full-Speed USB 2.0 Switches with High ESD ABSOLUTE MAXIMUM RATINGS (All voltages referenced to GND.) V+ .............................................................................-0.3V to +4V IN, QP (Note 1) .........................................................-0.3V to +4V COM_, NO_, NC_ ..................................................-0.3V to +5.5V Continuous Current (COM_ to NO_/NC_) ......................±120mA Peak Current, ...

Page 3

High-/Full-Speed USB 2.0 Switches ELECTRICAL CHARACTERISTICS (continued) (V+ = +2.7V to +3.6V MIN +25°C.) (Note 2) PARAMETER SYMBOL I NC_, Off-Leakage Current I NC_, On-Leakage Current SWITCH AC PERFORMANCE On-Channel -3dB Bandwidth Off-Isolation Crosstalk ...

Page 4

High-/Full-Speed USB 2.0 Switches with High ESD ELECTRICAL CHARACTERISTICS (continued) (V+ = +2.7V to +3.6V MIN +25°C.) (Note 2) PARAMETER SYMBOL Total Harmonic Distortion Plus THD+N Noise Charge Injection SWITCH LOGIC Logic-Input Voltage Low ...

Page 5

High-/Full-Speed USB 2.0 Switches (V+ = 3.3V +25°C, unless otherwise noted.) A CHARGE INJECTION vs. V COM 100pF 1.1 2.2 V (V) COM LOGIC-INPUT LOW THRESHOLD vs. SUPPLY ...

Page 6

High-/Full-Speed USB 2.0 Switches with High ESD (V+ = 3.3V +25°C, unless otherwise noted.) A RISE-/FALL-TIME PROPAGATION DELAY vs. TEMPERATURE 250 240 230 t PLH 220 210 t PHL 200 -40 - TEMPERATURE (°C) FREQUENCY ...

Page 7

High-/Full-Speed USB 2.0 Switches PIN NAME 1 IN Digital Control Input. IN controls switch 1 and switch Charge-Pump Enable Input. Drive QP high to turn charge pump off. For normal operation, drive QP low GND ...

Page 8

High-/Full-Speed USB 2.0 Switches with High ESD CAPACITANCE f = 1MHz Figure 2. Channel Off-/On-Capacitance MAX4906EF NO_ NC_ IN GND LOGIC INPUT C INCLUDES FIXTURE AND STRAY CAPACITANCE OUT ...

Page 9

High-/Full-Speed USB 2.0 Switches NC1 NO1 IN+ NC2 NO2 IN IN+ 50 50% IN PLHX V+ V OUT+ 50 50% V OUT PHLY ...

Page 10

High-/Full-Speed USB 2.0 Switches with High ESD Figure 5. MAX4906EF Fault-Protection Response/Recovery Time MAX4906EF R GEN NC_ OR NO_ V GEN GND IN Figure 6. Charge Injection Detailed Description The MAX4906EF are ESD-protected analog switches where the COM_ inputs are ...

Page 11

High-/Full-Speed USB 2.0 Switches Functional Diagram/Truth Table V+ MAX4906EF IN NO1 NC1 NO2 NC2 GND MAX4906EF NO1 NC1 QP IN NO2 NC2 0 0 OFF ON HIGH PERFORMANCE HIGH PERFORMANCE 1 ON OFF OFF ON LOW PERFORMANCE ...

Page 12

High-/Full-Speed USB 2.0 Switches with High ESD ASIC I D+ USB MAX4906EF TRANSCEIVER D- NC1 NO1 NC2 ASIC II NO2 D+ USB TRANSCEIVER D- Figure 7. USB Data Routing MAX4906EF COM1 USB TRANSCEIVER COM2 Figure 8. Switching Between Multiple USB ...

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 © 2009 Maxim Integrated Products ...

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