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MAX4906EFELB 其他数据使用手册 - Maxim Integrated（美信）
制造商:
Maxim Integrated（美信）
分类:
多工器
封装:
VSON
描述:
高速/全速USB 2.0开关，提供高ESD High-/Full-Speed USB 2.0 Switches with High ESD
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MAX4906EFELB数据手册
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General Description
The MAX4906EF are electrostatic discharge (ESD)-pro-
tected analog switches that combine low on-capacitance
(C
ON
) and low on-resistance (R
ON
) necessary for high-
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
IH
, permitting them to be used with low-voltage logic.
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.
Applications
Features
♦ ±15kV (Human Body Model) ESD Protection,
on COM_
♦ Fully Specified for a Single +2.7V to +3.6V
Power-Supply Voltage
♦ Low 4Ω (typ), 7Ω (max) On-Resistance (R
ON
)
♦ -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
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
MAX4906EF
High-/Full-Speed USB 2.0 Switches
with High ESD
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
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.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
PART TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX4906EFELB+T -40°C to +85°C 10 μDFN AAJ
USB Switching
Cell Phones
PDAs
Digital Still Cameras
GPS
Notebook Computers
Relay Replacements
Ethernet Switching
Video Switching
Bus Switches
T3/E3 Switches for
Redundancy Protection
1
2
3
4
5
10
9
8
7
6
V+
NC1
NC2
NO1COM1
GND
QP
IN
MAX4906EF
μDFN
NO2COM2
TOP VIEW
+
Pin Configuration
EYE DIAGRAM
200ps/div
V+ = 3.3V
I
BIAS
= 9mA
UI = 2.08ns
V
NO1OUT
100mV/div
V
NO2OUT
USB 2.0
HIGH SPEED
TRANSMIT
TEMPLATE
Typical Operating Characteristics
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