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參數資料
| 型號： | TPS2480PW |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, PDSO20 |
| 封裝： | GREEN, PLASTIC, TSSOP-20 |
| 文件頁數： | 27/56頁 |
| 文件大?。?/td> | 1381K |
| 代理商： | TPS2480PW |
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SCL
SDA
t
(LOW)
t
R
t
F
t
(HDSTA)
t
(HDSTA)
t
(HDDAT)
t
(BUF)
t
(SUDAT)
t
(HIGH)
t
(SUSTA)
t
(SUSTO)
P
S
P
www.ti.com
SLUS939B – APRIL 2010 – REVISED DECEMBER 2010
High-Speed I2C Mode
When the bus is idle, both the SDA and SCL lines are pulled high by the pull-up devices. The master generates
a start condition followed by a valid serial byte containing High-Speed (HS) master code 00001XXX. This
transmission is made in fast (400 kbps) or standard (100 kbps) (F/S) mode at no more than 400 kbps. The
TPS2480/81 does not acknowledge the HS master code, but does recognize it and switches its internal filters to
support 3.4-Mbps operation.
The master then generates a repeated start condition (a repeated start condition has the same timing as the start
condition). After this repeated start condition, the protocol is the same as F/S mode, except that transmission
speeds up to 3.4 Mbps are allowed. Instead of using a stop condition, repeated start conditions should be used
to secure the bus in HS-mode. A stop condition ends the HS-mode and switches all the internal filters of the
TPS2480/81 to support the F/S mode.
Figure 24.
Table 3.
FAST MODE
HIGH-SPEED MODE
UNITS
PARAMETER
MIN
MAX
MIN
MAX
f(SCL)
SCL operating frequency
0.001
0.4
0.001
3.4
MHz
T(BUF)
Bus free time between STOP and START condition
600
160
ns
T(HDSTA)
Hold time after repeated START condition. After this period,
100
ns
the first clock is generated.
T(SUSTA)
Repeated START condition setup time
100
ns
T(SUSTO)
STOP condition setup time
100
ns
T(HDDAT)
Data hold time
0
ns
T(SUDAT)
Data setup time
100
10
ns
T(LOW)
SCL clock LOW period
1300
160
ns
T(HIGH)
SCL clock HIGH period
600
60
ns
tF
Clock/data fall time
300
160
ns
tR/ tR
Clock/data rise time clock/data rise time for SCLK
≤ 100kHz
300/1000
160
ns/ns
Power-Up Conditions
Power-up conditions are caused by a software reset via the RST bit (bit 15) in the Configuration Register, or the
I2C bus General Call Reset.
Copyright 2010, Texas Instruments Incorporated
33
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS2480PWR | 功能描述:熱插拔功率分布 Pos Vltg,Int Prot Dev/Hotswap Cntrlr RoHS:否 制造商:Texas Instruments 產品: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 |
| TPS2481EVM-001 | 功能描述:電源管理IC開發工具 Eval Mod for TPS2481 RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS2481PW | 功能描述:熱插拔功率分布 Pos VltgInt Prot Dev/Hotswap Cntrlr RoHS:否 制造商:Texas Instruments 產品: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 |
| TPS2481PWR | 功能描述:熱插拔功率分布 Pos VltgInt Prot Dev/Hotswap Cntrlr RoHS:否 制造商:Texas Instruments 產品: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 |
| TPS2482PW | 制造商:Texas Instruments 功能描述:Hot Swap Controller 1-CH 80V 20-Pin TSSOP Tube 制造商:Texas Instruments 功能描述:IC CTRLR HOT SWAP 9-36V 20TSSOP 制造商:Texas Instruments 功能描述:36V Hotswap Cntlr w/ Digital Pwr Monitor |
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