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参数资料
| 型号： | MAX14978ETO+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | IC ANLG PASSIVE SW USB 42-TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 240 |
| 功能： | USB 开关 |
| 导通状态电阻： | 10 欧姆 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 5.5 V |
| 电流 - 电源： | 600nA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 42-WFQFN 裸露焊盘 |
| 供应商设备封装： | 42-TQFN-EP（3.5x9） |
| 包装： | 托盘 |
_______________________________________________________________ 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX14978ETO+ | 功能描述:电源开关 IC - USB USB 3.0 Switch RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX14978ETO+T | 功能描述:电源开关 IC - USB USB 3.0 Switch RoHS:否 制造商:Micrel 电源电压-最小:2.7 V 电源电压-最大:5.5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-8 封装:Tube |
| MAX14979EETX+ | 功能描述:模拟开关 IC 7 Ch LVDS Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX14979EETX+GH7 | 功能描述:模拟开关 IC High BW LVDS Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX14979EETX+T | 功能描述:模拟开关 IC 7 Ch LVDS Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
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