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參數(shù)資料
| 型號： | TPS61170DRV |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 1.2A High Voltage Boost Converter in 2x2mm2 QFN Package |
| 中文描述： | 1.2A的高電壓升壓轉(zhuǎn)換器2x2mm2 QFN封裝 |
| 文件頁數(shù)： | 13/22頁 |
| 文件大?。?/td> | 405K |
| 代理商： | TPS61170DRV |
www.ti.com
TPS61170
SLVS789–NOVEMBER 2007
The bit detection is based on a Logic Detection scheme, where the criterion is the relation between t
LOW
and
t
HIGH
. It can be simplified to:
High Bit: t
HIGH
> t
LOW
, but with t
HIGH
at least 2x t
LOW
, see
Figure 16
.
Low Bit: t
HIGH
< t
LOW
, but with t
LOW
at least 2x t
HIGH
, see
Figure 16
.
The bit detection starts with a falling edge on the CTRL pin and ends with the next falling edge. Depending on
the relation between t
HIGH
and t
LOW
, the logic 0 or 1 is detected.
The acknowledge condition is only applied if:
Acknowledge is requested by a set RFA bit.
The transmitted device address matches with the device address of the device.
16 bits is received correctly.
If the device turns on the internal ACKN-MOSFET and pulls the CTRL pin low for the time t
ACKN
, which is 512
μ
s
maximum then the Acknowledge condition is valid after an internal delay time t
valACK
. This means that the internal
ACKN-MOSFET is turned on after t
valACK
, when the last falling edge of the protocol was detected. The master
controller keeps the line low in this period. The master device can detect the acknowledge condition with its input
by releasing the CTRL pin after t
valACK
and read back a logic 0. The CTRL pin can be used again after the
acknowledge condition ends.
Note that the acknowledge condition may only be requested if the master device has an open drain output. For
the push-pull output stage, the use a series resistor in the CRTL line to limit the current to 500
μ
A is
recommended for such cases as:
an accidentally requested acknowledge, or
to protect the internal ACKN-MOSFET.
Copyright 2007, Texas Instruments Incorporated
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS61170DRVR | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2A Sw Hi Vltg Boost Conv RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS61170DRVRG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2A Sw Hi Vltg Boost Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS61170DRVT | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2A Sw Hi Vltg Boost Conv RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| TPS61170DRVT | 制造商:Texas Instruments 功能描述:Voltage Regulators |
| TPS61170DRVTG4 | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1.2A Sw Hi Vltg Boost Converter RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
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