參數(shù)資料
型號(hào)： MAX14978ETO+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/15頁(yè)
文件大小： 0K
描述： IC ANLG PASSIVE SW USB 42-TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 240
功能： USB 開(kāi)關(guān)
導(dǎo)通狀態(tài)電阻： 10 歐姆
電壓電源： 單電源
電壓 - 電源，單路/雙路(±)： 3 V ~ 5.5 V
電流 - 電源： 600nA
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 42-WFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 42-TQFN-EP（3.5x9）
包裝： 托盤(pán)
_______________________________________________________________ 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.
MAX14978
SuperSpeed USB Passive Switch
(Low/Full/Hi/SuperSpeed)
19-5573; Rev 1; 4/11
Typical Operating Circuit
General Description
The MAX14978 high-performance, passive analog switch
is ideal for switching Hi-Speed USB and SuperSpeed USB
data between one source and two loads, or vice versa. The
device can be used in desktop and notebook applications
where SuperSpeed USB ports are in limited supply. The
device consists of two sets of analog switches with one
set used for USB low-speed, full-speed, and Hi-Speed
signals and the second set used for USB SuperSpeed.
The device operates from a single +3.3V supply.
The device features low insertion loss for all speeds. It
has Q6kV Human Body Model (HBM) ESD protection
on all I/O pins. In addition, the low/full/Hi-Speed COM_
ports have ESD protection to Q15kV HBM and Q8kV IEC
61000-4-2 contact.
The device is available in a small, 3.5mm x 9.0mm,
42-pin TQFN package and is specified over the extend-
ed -40NC to +85NC temperature range.
Applications
Desktop PCs
Laptop PCs
Industrial USB Switching
Features
S
Designed for SuperSpeed USB Applications:
Low/Full/Hi-Speed (1.5/12/480Mbps)
SuperSpeed (5.0Gbps)
S
Superior Return Loss and Insertion Loss for
SuperSpeed Analog Switches
S
Low Quiescent Current: 36A (typ)
S
All Link Training is Preserved (SuperSpeed)
S
LVCMOS Control (1.4V P VIH P 3.6V)
S
Operation from a Single +3.3V Power Supply
S
Small, 3.5mm x 9.0mm, 42-Pin TQFN Package
Ordering Information
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
MAX14978
SEL1 SEL2
GND
VCC
VDD
+3.3V
NCD+
NCD-
D+
SUPERSPEED
USB
PORT1
USB SWITCH
CONTROLLER
D-
Tx+
Tx-
Rx+
Rx-
D+
SUPERSPEED
USB
CONTROLLER
D-
Tx+
Tx-
Rx+
Rx-
D+
SUPERSPEED
USB
PORT2
D-
Tx+
Tx-
Rx+
Rx-
NOD+
NOD-
COMD+
0.1F
COMD-
COM0+
COM0-
COM1+
COM1-
NC0+
NC0-
NC1+
NC1-
NO0+
NO0-
NO1+
NO1-
EN
PART
TEMP RANGE
PIN-PACKAGE
MAX14978ETO+
-40NC to +85NC
42 TQFN-EP*
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參數(shù)描述
MAX14978ETO+ 功能描述:電源開(kāi)關(guān) IC - USB USB 3.0 Switch RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube
MAX14978ETO+T 功能描述:電源開(kāi)關(guān) IC - USB USB 3.0 Switch RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube
MAX14979EETX+ 功能描述:模擬開(kāi)關(guān) IC 7 Ch LVDS Switch RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:2 開(kāi)關(guān)配置:SPDT 開(kāi)啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX14979EETX+GH7 功能描述:模擬開(kāi)關(guān) IC High BW LVDS Switch RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:2 開(kāi)關(guān)配置:SPDT 開(kāi)啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
MAX14979EETX+T 功能描述:模擬開(kāi)關(guān) IC 7 Ch LVDS Switch RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)數(shù)量:2 開(kāi)關(guān)配置:SPDT 開(kāi)啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16
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