- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383962 > TPS2206DB (Texas Instruments, Inc.) DUAL-SLOT PC CARD POWER-INTERFACE SWITCH WITH RESET FOR SERIAL PCMCIA CONTROLLER PDF資料下載
參數(shù)資料
| 型號： | TPS2206DB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | DUAL-SLOT PC CARD POWER-INTERFACE SWITCH WITH RESET FOR SERIAL PCMCIA CONTROLLER |
| 中文描述： | 雙插槽PC卡電源，串行接口，PCMCIA控制器復位開關 |
| 文件頁數(shù)： | 17/28頁 |
| 文件大?。?/td> | 458K |
| 代理商： | TPS2206DB |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁當前第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁
TPS2206
DUAL-SLOT PC CARD POWER-INTERFACE SWITCH
WITH RESET FOR SERIAL PCMCIA CONTROLLER
SLVS138B – MAY 1996 – REVISED JUNE 1998
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
overview
PC Cards were initially introduced as a means to add EEPROM (flash memory) to portable computers with
limited on-board memory. The idea of add-in cards quickly took hold; modems, wireless LANs, Global
Positioning Satellite System (GPS), multimedia, and hard-disk versions were soon available. As the number
of PC Card applications grew, the engineering community quickly recognized the need for a standard to ensure
compatibility across platforms. To this end, the PCMCIA was established, comprised of members from leading
computer, software, PC Card, and semiconductor manufacturers. One key goal was to realize the
“plug-and-play” concept. Cards and hosts from different vendors should be compatible — able to communicate
with one another transparently.
PC Card power specification
System compatibility also means power compatibility. The most current set of specifications (PC Card Standard)
set forth by the PCMCIA committee states that power is to be transferred between the host and the card through
eight of the 68 terminals of the PC Card connector. This power interface consists of two V
CC
, two V
pp
, and four
ground terminals. Multiple V
CC
and ground terminals minimize connector-terminal and line resistance. The two
V
pp
terminals were originally specified as separate signals but are commonly tied together in the host to form
a single node to minimize voltage losses. Card primary power is supplied through the V
CC
terminals;
flash-memory programming and erase voltage is supplied through the V
pp
terminals.
designing for voltage regulation
The current PCMCIA specification for output-voltage regulation (V
O(reg)
) of the 5-V output is 5% (250 mV). In
a typical PC power-system design, the power supply has an output-voltage regulation (V
PS(reg)
) of 2% (100 mV).
Also, a voltage drop from the power supply to the PC Card will result from resistive losses (V
PCB
) in the PCB
traces and the PCMCIA connector. A typical design would limit the total of these resistive losses to less than
1% (50 mV) of the output voltage. Therefore, the allowable voltage drop (V
DS
) for the TPS2206 would be the
PCMCIA voltage regulation less the power supply regulation and less the PCB and connector resistive drops:
VDS
VO reg–VPS reg–VPCB
(1)
Typically, this would leave 100 mV for the allowable voltage drop across the TPS2206. The voltage drop is the
output current multiplied by the switch resistance of the TPS2206. Therefore, the maximum output current that
can be delivered to the PC Card in regulation is the allowable voltage drop across the TPS2206 divided by the
output switch resistance.
VDS
rDSon
IOmax
(2)
The xVCC outputs have been designed to deliver 700 mA at 5 V within regulation over the operating temperature
range. Current proposals for the PCMCIA specifications are to limit the power dissipated in the PCMCIA slot
to 3 W. With an input voltage of 5 V, 700 mA continuous is the maximum current that can be delivered to the
PC Card. The TPS2206 is capable of delivering up to 1 A continuously, but during worst-case conditions the
output may not be within regulation. This is generally acceptable because the majority of PC Cards require less
than 700 mA continuous. Some cards require higher peak currents (disk drives during initial platter spin-up),
but it is generally acceptable for small voltage sags to occur during these peak currents.
The xVCC outputs have been designed to deliver 1 A continuously at 3.3 V within regulation over the operating
temperature range. The PCMCIA specification for output voltage regulation of the 3.3-V output is 300 mV. Using
the voltage drop percentages (2%) for power supply regulation and PCB resistive loss (1%), the allowable
voltage drop for the 3.3 V switch is 200 mV.
The xVPP outputs have been designed to deliver 150 mA continuously at 12 V.
相關PDF資料 |
PDF描述 |
|---|---|
| TPS2206DF | DUAL-SLOT PC CARD POWER-INTERFACE SWITCH WITH RESET FOR SERIAL PCMCIA CONTROLLER |
| TPS2206Y | DUAL-SLOT PC CARD POWER-INTERFACE SWITCH WITH RESET FOR SERIAL PCMCIA CONTROLLER |
| TPS2393DBTRG4 | FULL-FEATURED-48-V HOTSWAP POWER MANAGER |
| TPS2491EVM-002 | +48V Hot Swap Power Manager Evaluation Kit(在+48V熱插拔電源管理中應用的評估) |
| TPS2490EVM-001 | +48V Hot Swap Power Manager Evaluation Kit(在+48V熱插拔電源管理中應用的評估) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPS2206IDAP | 功能描述:熱插拔功率分布 1A Dual-Slot PC Card w/Serial Interface RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2206IDAPG4 | 功能描述:熱插拔功率分布 1A Dual-Slot PC Card Pwr Sw RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2206IDAPR | 功能描述:熱插拔功率分布 1A Dual-Slot PC Card w/Serial Interface RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2206IDAPRG4 | 功能描述:熱插拔功率分布 1A Dual-Slot PC Card w/Serial Interface RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| TPS2206IDB | 功能描述:熱插拔功率分布 1A Dual-Slot PC Card w/Serial Interface RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復。