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參數(shù)資料
| 型號： | MAX1930 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Current-Limited Switch for Two USB Ports |
| 中文描述： | 限流開關，支持兩個USB口 |
| 文件頁數(shù)： | 6/7頁 |
| 文件大小： | 287K |
| 代理商： | MAX1930 |
M
Current-Limited Switch for Two USB Ports
6
_______________________________________________________________________________________
ture. If the fault condition is not removed, the thermal-
overload protection circuitry activates (see the
Thermal
Shutdown
section). Wide power-bus planes connected
to IN and OUT and a ground plane in contact with the
device help dissipate additional heat.
Driving Inductive Loads
A wide variety of devices (mice, keyboards, cameras,
and printers) can load the USB port. These devices com-
monly connect to the port with cables, which can add an
inductive component to the load. This inductance caus-
es the output voltage at the USB port to ring during a
load step. The MAX1930 is capable of driving inductive
loads, but avoid exceeding the device
’
s absolute maxi-
mum ratings. Usually the load inductance is relatively
small, and the MAX1930
’
s input includes a substantial
bulk capacitance from an upstream regulator, as well as
local bypass capacitors, limiting overshoot. If severe
ringing occurs due to large load inductance, clamp the
MAX1930 output below 6V and above -0.3V.
Figure 2. Typical Application Circuit
MAX1930
IN
OUTPUT
OUT
INPUT
1
μ
F
0.1
μ
F*
*USB SPECIFICATIONS REQUIRE
A HIGHER VALUE CAPACITOR.
OVERCURRENT
OUTPUT
ON
OFF
GND
EN
Chip Information
TRANSISTOR COUNT: 715
PROCESS: BiCMOS
相關PDF資料 |
PDF描述 |
|---|---|
| MAX1930ESA | Fixed-Point Digital Signal Processor 532-FCBGA |
| MAX1931 | Current-Limited Switch for Single USB Port |
| MAX1931EUB | Current-Limited Switch for Single USB Port |
| MAX1932 | Digitally Controlled, 0.5% Accurate, Safest APD Bias Supply |
| MAX1932ETC | Digitally Controlled, 0.5% Accurate, Safest APD Bias Supply |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1930ESA | 功能描述:電源開關 IC - USB 1A Crnt-Ltd Switch for 2 USB Ports 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 |
| MAX1930ESA+ | 功能描述:電源開關 IC - USB 1A Crnt-Ltd Switch for 2 USB Ports 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 |
| MAX1930ESA+T | 功能描述:電源開關 IC - USB 1A Crnt-Ltd Switch for 2 USB Ports 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 |
| MAX1930ESA-T | 功能描述:電源開關 IC - USB 1A Crnt-Ltd Switch for 2 USB Ports 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 |
| MAX1931EUB | 功能描述:電源開關 IC - USB 1A Crnt-Ltd Switch for 2 USB Ports 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 |
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