Texas Instruments 4Q 2006 USB Power Managers Family of Products, Port USB Hub Power Controllers

Page 27

Design Considerations

USB High-Power Peripheral Switch With Dual Current Limit + LDO

Universal Serial Bus (USB) Power Managers

27

 

 

 

4-Port USB Hub Power Controllers

Power Distribution Switches

TPS2140/41/50/51—The TPS2140/41/50/51 target high-power USB peripherals such as ADSL modems. The devices contain a power switch and an LDO. The dual-current-limiting switch allows the use of high-value capaci- tance to stabilize the voltage from the USB bus.

Dual Power Switch + LDO for USB Bus-Powered Peripherals and Hubs

TPS2148/49—TPS2148 is a complete power management solution for USB bus-powered peripherals such as zip drives, while TPS2149 is for USB bus-powered hubs, such as keyboards with integrated hubs. TPS2148/9 each combine a 3.3-V LDO and dual power switch in a single MSOP package. The TPS2148 switch configura- tion allows power and board capacitance segmentation to meet USB system current requirements. The TPS2149 switches manage two independent or four ganged USB ports.

TPS207x—The TPS207x family provides the complete power solution for 4-port self- powered, bus-powered or hybrid USB hubs by incorporating current-limited switches for four ports, a 3.3-V 100-mA LDO, a 5-V LDO controller for self power (TPS2070, TPS2071) and a DP0 line control to signal an attach to the host.

Ease of Use—USB allows simplified installa- tion and improved performance for peripheral devices by eliminating the need to repeatedly load new drivers and establish individual set- tings. USB combines a multitude of existing interfaces into a single easy-to-use connector, greatly reducing system complexity and offer- ing manufacturers the ability to develop highly integrated products.

TPS204xB/5xB—The TPS204xB/5xB families of 80-mΩcurrent-limiting power switches meet all the USB power management requirements for controlling downstream ports, and include additional features to improve the design reliability. For example, when an over-current condition exists, the device intelligently shuts down only the port that sees the fault.

TPS202x/3x/6x—The TPS202x/3x/6x families of low on-resistance current-limiting power switches allow ganging of multiple ports to a single switch, as described in Application Note SLVA049. Though ganging can be cost- effective, all ports are affected by a fault.

USB Power Managers Family of Products

 

 

 

 

Current Limit (min) (A)

 

 

 

 

0.22

0.3

0.66

0.7

1.1

1.5

1.65

2.2

USB Power Distribution Switches

 

 

 

 

 

 

Quad

TPS2048A/58A

TPS2044B/54B

Triple

TPS2047B/57A

TPS2043B/53B

TPS2063/67

Dual

TPS2046B/56A

TPS2042B/52B

TPS2062/66

TPS2060/64

Single

TPS2020/30

TPS2045A/55A

TPS2021/31

TPS2041B/51B

TPS2022/32/61/65

TPS2023/33

TPS2024/34

 

 

Bus Power

 

 

 

5-V LDO

Mode

 

 

Device

Controller

Indicator

Pins

Package

4-Port USB Hub Power Controllers

 

TPS2070

Yes

Active Low

32

HTSSOP

TPS2071

Yes

Active High

32

HTSSOP

TPS2074

No

Active Low

24

SSOP

TPS2075

No

Active High

24

SSOP

Dual Power Switch + LDO for USB Bus-Powered Peripherals and Hubs

 

TPS2145/55

 

 

TPS2147/57

 

 

TPS2148/58

 

 

TPS2149/59

 

 

TSSOP-14

 

 

MSOP-10

 

 

MSOP-8

 

 

MSOP-8

 

VIN/SW1

LDO

LDO_OUT

VIN/SW1

LDO

LDO_OUT

VIN/SW1

LDO

LDO_OUT

VIN

LDO

LDO_OUT

LDO_ADJ

 

 

 

 

 

 

 

 

 

 

 

LDO_EN

 

OC1

 

 

OC1

LDO_EN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUT1

 

 

OUT1

EN1

 

OUT1

 

 

OUT1

EN1

 

 

EN1

 

 

 

 

EN1

 

OC

 

 

 

 

 

 

 

 

SW2

 

OUT2

SW2

 

OUT2

 

 

OUT2

 

 

OUT2

EN2

 

OC2

EN2

 

OC2

EN2

 

 

EN2

 

 

GND

 

 

GND

 

 

GND

 

 

GND

 

 

Texas Instruments 4Q 2006

Interface Selection Guide

Image 27
Contents Interface Selection Guide Interface Selection Guide Table of ContentsClock Distribution Circuits p Interface Selection GuideLvds Family of Products LVDS, xECL, CMLDesign Considerations Technical InformationTexas Instruments 4Q Pecl Selection GuideLvds Selection Guide Quad Family SupplyDevice Pin/Packages Price Single Family Dual FamilyLvds Devices from TI Lvds FeaturesMultipoint-LVDS M-LVDS Multipoint LvdsPart-to HalfDigital Isolators Selection Guide Mbps Jitter To ensure signal integrityKey Features Digital IsolatorsRS-485/422 Family of Products RS-485/422Soic FeaturesNo. Dr/Rx NodesSpace-saving QFN package options for portable applications Flexible power-saving options enable longer battery lifeRS-232 RS232 IEC6100-4-2 Level ESD-Protected DevicesDevice Drivers ReceiversPin/Packages Price Pin/Package Price RS-232 Selection Guide64-byte FIFOs available 3-, 2.5- and 1.8-V supply Programmable sleep mode and low-power modeUARTs Universal Asynchronous Receiver/Transmitters Uart Family of ProductsPDAs MP3 players Gaming systems Modems Serial ports Telecom UARTs Universal Asynchronous Receiver/TransmittersUart Selection Guide Asynchronous Communications Element with Autoflow ControlStandard Compliant Protocols Can 3.3-V and 5-V High-Speed can TransceiversCan Transceiver Selection Guide Selection Guide1755 Flatlink 3GFlatLinkTM 3G Display SerDes for Mobile Phones FlatLink 3G Selection GuidePhoto SerDes Solutions-Frontplane/BackplaneSerDes Serial Gigabit Transceivers and Lvds BufferLvds Serdes SerDes Serial Gigabit Transceivers Selection GuideGigabit Ethernet/FibreChannel Gigabit Xaui EthernetHdcp Elements High Bandwidth Digital Content Protection HdcpContent protection for video sent over DVI 22 DVI/PanelBusDesktop LCD monitors DLP and LCD projectors Digital TVs Digital visual interface DVI compliantSet-top boxes 40QFN Intra-Pair ps Inter-Pair Clock P-P Data P-PJitter Max psUSB-to-Serial Bridge Universal Serial Bus USBSpeed Transfer TypeUSB Hub Controllers and Peripheral Devices USB Family of ProductsPackage Port USB Hub Power Controllers USB Power Managers Family of ProductsUSB Power Managers Selection Guide Universal Serial Bus USB Power ManagersPCI Express DeviceClassifications PCI Express Key BenefitsTarget Markets ExpressCards PC Add-In Cards PC Motherboards Target MarketPainful and not robust TX BlockRX Block Functionality PCI BridgesTwo 32-bit, 33- or 66-MHz buses CapabilitiesPower Distribution Devices Family of Products CardBus Power SwitchesEnable Predecessor Transition TimeIN1 to IN2 Overview 36 1394 FireWirePhysical-Layer Selection Issues Link-Layer Selection IssuesMore efficient Boss arbitration 1394b AdvantagesReal-time streaming of audio and video Faster speeds from 800 Mbps to 3200 MbpsKey Features Applications FireWireConn. Conn. Conn. Conn. Conn. Conn Signal Integrity TI vs CompetitionOther Literature Gtlp Gunning Transceiver Logic PlusGtlp Selection Guide Device Description PriceHighlights VMEClock Distribution Circuits SN65HVD3082E SN65HVD3085ESN65HVD3088E Cross-Reference GuideSN65LVDT3486B Cross-Reference GuideSN65LVDT9637B PericomTexas Instruments Device IndexProduct Information Centers InternetImportant Notice