Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

TPS2074 Datasheet(PDF) 21 Page - Texas Instruments

Part No. TPS2074
Description  FOUR-PORT USB HUB POWER CONTROLLERS
Download  27 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS2074 Datasheet(HTML) 21 Page - Texas Instruments

Back Button TPS2074_08 Datasheet HTML 17Page - Texas Instruments TPS2074_08 Datasheet HTML 18Page - Texas Instruments TPS2074_08 Datasheet HTML 19Page - Texas Instruments TPS2074_08 Datasheet HTML 20Page - Texas Instruments TPS2074_08 Datasheet HTML 21Page - Texas Instruments TPS2074_08 Datasheet HTML 22Page - Texas Instruments TPS2074_08 Datasheet HTML 23Page - Texas Instruments TPS2074_08 Datasheet HTML 24Page - Texas Instruments TPS2074_08 Datasheet HTML 25Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 21 / 27 page
background image
TPS2074, TPS2075
FOUR-PORT USB HUB POWER CONTROLLERS
SLVS288A – SEPTEMBER 2000 – REVISED FEBRUARY 2001
21
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
USB power-distribution requirements
USB can be implemented in several ways, and, regardless of the type of USB device being developed, several
power-distribution features must be implemented.
D Hosts/self-powered hubs must:
Current-limit downstream ports
Report overcurrent conditions on USB VBUS
Output 5.25 V to 4.75 at 500 mA
D Bus-powered hubs must:
Enable/disable power to downstream ports
Power up at <100 mA
Limit inrush current (<44
Ω and 10 µF)
Output 5.25 V to 4.4 at 100 mA
Not send power back upstream
D Functions must:
Limit inrush currents
Power up at <100 mA
Not send power back upstream (SP functions)
The feature set of the TPS2074 and TPS2075 allows them to meet each of these requirements. The integrated
current-limiting and overcurrent reporting is required by hosts and self-powered hubs. The logic-level enable
and controlled rise times meet the needs of both input and output ports on hubs, as well as the input ports for
bus-powered functions
USB hybrid hub
A USB hybrid hub can be simply implemented using the TPS2075 USB power controller and a TUSB2046 USB
hub controller as shown in Figure 33. The TPS2075 USB power controller provides all the power needs to the
four downstream ports and meets all the USB power specifications for both self-powered hubs and bus-powered
hubs. The power controllers integrated 3.3-V LDO is used to provide power for the hub controller and any other
local functions (e.g. transient suppressor SN75240 ), which saves board space and cost. The TPS2075 also
provides the hub controller with a power good (PG) signal that connects to the RESET input of the hub controller
to automatically reinitialize the hub when switching between self-powered mode and bus-powered mode
whenever the self-power supply is connected or disconnected. The amount of time in which the hub controller
is kept in a reset state is controlled by a capacitor connected between the PG_DLY pin of the power controller
and ground.


Similar Part No. - TPS2074_08

ManufacturerPart No.DatasheetDescription
Texas Instruments
Texas Instruments
TPS2074DB TI-TPS2074DB Datasheet
416Kb / 25P
[Old version datasheet]   FOUR-PORT USB HUB POWER CONTROLLERS
TPS2074DB TI-TPS2074DB Datasheet
688Kb / 31P
[Old version datasheet]   FOUR-PORT USB HUB POWER CONTROLLERS
TPS2074DBR TI-TPS2074DBR Datasheet
416Kb / 25P
[Old version datasheet]   FOUR-PORT USB HUB POWER CONTROLLERS
More results

Similar Description - TPS2074_08

ManufacturerPart No.DatasheetDescription
Texas Instruments
Texas Instruments
TPS2070 TI-TPS2070_07 Datasheet
688Kb / 31P
[Old version datasheet]   FOUR-PORT USB HUB POWER CONTROLLERS
TPS2074 TI-TPS2074 Datasheet
416Kb / 25P
[Old version datasheet]   FOUR-PORT USB HUB POWER CONTROLLERS
TPS2070 TI-TPS2070 Datasheet
472Kb / 29P
[Old version datasheet]   FOUR-PORT USB HUB POWER CONTROLLERS
TUSB4041I-Q1 TI1-TUSB4041I-Q1 Datasheet
1Mb / 44P
[Old version datasheet]   Four-Port USB 2.0 Hub
TUSB8040A1 TI1-TUSB8040A1 Datasheet
391Kb / 38P
[Old version datasheet]   Four-Port USB 3.0 Hub
TUSB8040_1110 TI-TUSB8040_1110 Datasheet
414Kb / 33P
[Old version datasheet]   USB 3.0 Four Port Hub
TUSB8041 TI1-TUSB8041 Datasheet
2Mb / 48P
[Old version datasheet]   Four-Port USB 3.0 Hub
TUSB4041I TI1-TUSB4041I Datasheet
1Mb / 44P
[Old version datasheet]   Four-Port USB 2.0 Hub
TUSB8040 TI1-TUSB8040_15 Datasheet
363Kb / 32P
[Old version datasheet]   USB 3.0 Four Port Hub
TUSB8043 TI1-TUSB8043 Datasheet
2Mb / 59P
[Old version datasheet]   Four-Port USB 3.1 Gen1 Hub
More results


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz