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參數(shù)資料
| 型號： | MAX4989ETD+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 7/8頁 |
| 文件大小： | 0K |
| 描述： | IC CROSSPOINT SWITCH 14TDFN |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program Low Voltage Analog Switches Overview |
| 標準包裝： | 1 |
| 功能： | 交叉點開關(guān) |
| 導通狀態(tài)電阻： | 5 歐姆 |
| 電壓電源： | 單電源 |
| 電壓 - 電源，單路/雙路(±)： | 2.7 V ~ 5.5 V |
| 電流 - 電源： | 1µA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-WFDFN 裸露焊盤 |
| 供應商設備封裝： | 14-TDFN-EP（3x3） |
| 包裝： | 標準包裝 |
| 其它名稱： | MAX4989ETD+TDKR |
Pin Descriptions
Detailed Description
The MAX4989 is a USB 2.0 bidirectional crosspoint
switch that allows the user to connect any 2 of 4 USB
pairs. The device operates from a single +2.7V to
+5.5V supply and features an internal charge pump
to permit the full rail-to-rail swing necessary for USB
low-/full-/Hi-Speed applications with data rates up to
480Mbps.
Control Logic Inputs
The MAX4989 provides three control logic inputs, C0,
C1, and C2, to control the switch connections as
shown in the
Functional Diagram/Truth Table. Driving
the control logic inputs rail-to-rail minimizes power
consumption.
Shutdown Mode
The MAX4989 features a shutdown mode that reduces
the supply current to less than 0.5A and places all
switch terminals in high impedance. Drive all control
inputs high or all control inputs low to place the device in
shutdown mode (see
Functional Diagram/Truth Table.)
USB Switching
The low on-resistance and low on-capacitance of the
MAX4989 make it ideal for high-performance Hi-Speed
USB 2.0 switching applications. The MAX4989 is ideal
for routing USB data lines and for applications that
require switching between multiple USB hosts or
devices (Figure 4).
Layout
Hi-Speed USB requires careful PCB layout with con-
trolled-impedance matched traces of equal lengths.
Ensure that bypass capacitors are as close as possible
to the device. Use large ground planes where possible.
Power-Supply Sequencing
Caution: Do not exceed the absolute maximum rat-
ings because stresses beyond the listed ratings
may cause permanent damage to the device.
Proper power-supply sequencing is recommended for
all devices. Always apply VCC before applying signals,
especially if the signal is not current limited.
Chip Information
PROCESS: BiCMOS
MAX4989
USB 2.0 Hi-Speed 2-of-4 Crosspoint Switch
_______________________________________________________________________________________
7
PIN
NAME
FUNCTION
1
Y-
Inverting Input/Output of Terminal Y
2
Y+
Noninverting Input/Output of Terminal Y
3
GND
Ground
4
Z+
Noninverting Input/Output of Terminal Z
5
Z-
Inverting Input/Output of Terminal Z
6
C0
Control Input 0
7
C1
Control Input 1
8
C2
Control Input 2
9VCC
Positive Supply Voltage Input. Bypass VCC to GND with a 0.1F ceramic capacitor as close as possible to
the device.
10
X-
Inverting Input/Output of Terminal X
11
X+
Noninverting Input/Output of Terminal X
12
GND
Ground
13
W+
Noninverting Input/Output of Terminal W
14
W-
Inverting Input/Output of Terminal W
—EP
Exposed Pad. EP can be connected to GND or left unconnected. EP is not intended as an electrical
connection point.
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參數(shù)描述 |
|---|---|
| MAX4989EVKIT+ | 功能描述:交換機 IC 開發(fā)工具 MAX4989 Eval Kit RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:USB Power Switches 工具用于評估:MAX4984E 工作電源電壓:2.8 V to 5.5 V |
| MAX498CWI | 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX498CWI+ | 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX498CWI+T | 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX498CWI-T | 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UQFN-16 |
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