參數(shù)資料
型號(hào)： TPS2231RGP
廠商： Texas Instruments, Inc.
英文描述： ExpressCard TM POWER INTERFACE SWITCH
中文描述： 商標(biāo)的ExpressCard電源接口開(kāi)關(guān)
文件頁(yè)數(shù)： 13/35頁(yè)
文件大小： 1352K
代理商： TPS2231RGP
www.ti.com
POWER STATES
If AUXIN is not present, then all input-to-output power switches are kept off (
OFF
mode).
DISCHARGE FETs
The discharge FETs on the outputs are activated whenever the device detects that a card is not present (
No
Card
mode). Activation occurs after the input-to-output power switches are turned off (break before make). The
discharge FETs de-activate if either of the card-present lines go active low, unless the SHDN pin is asserted.
TPS2231
TPS2236
SLVS536E–JULY 2004–REVISED SEPTEMBER 2006
If AUXIN is present and SHDN is asserted (logic low), then all input-to-output power switches are kept off and
the output discharge FETs are turned on (
Shutdown
mode). If SHDN is asserted and then de-asserted, the state
on the outputs is restored to the state prior to SHDN assertion.
If 3.3VIN, AUXIN and 1.5VIN are present at the input of the power switch and no card is inserted, then all
input-to-output power switches are kept off and the output discharge FETs are turned on (
No Card
mode).
If 3.3VIN, AUXIN and 1.5VIN are present at the input of the power switch prior to a card being inserted, then all
input-to-output power switches are turned on once a card-present signal (CPUSB and/or CPPE) is detected
(
Card Inserted
mode).
If a card is present and all output voltages are being applied, then the STBY is asserted (logic low); the
AUXOUT voltage is provided to the card, and the 3.3VOUT and 1.5VOUT switches are turned off (
Standby
mode).
If a card is present and all output voltages are being applied, then the 1.5VIN, or 3.3VIN is removed from the
input of the power switch; the AUXOUT voltage is provided to the card and the 3.3VOUT and 1.5VOUT switches
are turned off (
Standby
mode).
If prior to the insertion of a card, the AUXIN is available at the input of the power switch and 3.3VIN and/or
1.5VIN are not, or if STBY is asserted (logic low), then no power is made available to the card (
OFF
mode). If
1.5VIN and 3.3VIN are made available at the input of the power switch after the card is inserted and STBY is not
asserted, all the output voltages are made available to the card (
Card Inserted
mode).
The discharge FETs are also activated whenever the SHDN input is asserted and stay asserted until SHDN is
de-asserted.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS2231RGPR 功能描述:熱插拔功率分布 Single Pwr 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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS2231RGPRG4 功能描述:熱插拔功率分布 Single Pwr 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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS2231RGPT 功能描述:熱插拔功率分布 Single Pwr 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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS2231RGPTG4 功能描述:熱插拔功率分布 Single Pwr 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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
TPS2236DAP 功能描述:熱插拔功率分布 Dual Slot Power 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(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube
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