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參數(shù)資料
型號(hào)： 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(yè)數(shù)： 28/56頁(yè)
文件大小： 1381K
代理商： TPS2480PW
V
=V
GND
-
BUS
IN-
Rangeof0Vto26V
TypicalApplication12V
Data(SDA)
3.3VSupply
Clock(SCL)
PowerRegister
CurrentRegister
I C
Interface
2
VoltageRegister
V
IN+
V
IN-
ADC
PGA
GND
A0
A1
Current
Shunt
V
=V
V
-
SHUNT
IN+
IN-
Typically<50mV
Supply
Load
-
+
3Vto5.5V
V
S
SLUS939B – APRIL 2010 – REVISED DECEMBER 2010
www.ti.com
ADC Operation
The two analog inputs to the TPS2480/81, VINP and VINM, connect to a shunt resistor in the bus of interest. The
TPS2480/81 is typically powered by a separate supply from 3 V to 5 .5V. The bus being sensed can vary from 0
V to 26 V. There are no special considerations for power-supply sequencing (for example, a bus voltage can be
present with the supply voltage off, and vice-versa). The TPS2480/81 senses the small drop across the shunt for
shunt voltage, and senses the voltage with respect to ground from VIN– for the bus voltage. Figure 25 illustrates
this operation.
Figure 25. TPS2480/81 Configured For Current and Voltage Measurement
When the TPS2480/81 is in the normal operating mode (that is, MODE bits of the Configuration Register are set
to '111'), it continuously converts the shunt voltage up to the number set in the shunt voltage averaging function
(Configuration Register, SADC bits). The device then converts the bus voltage up to the number set in the bus
voltage averaging (Configuration Register, BADC bits). The Mode control in the Configuration Register also
permits selecting modes to convert only voltage or current, either continuously or in response to an event
(triggered).
34
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TPS2480 TPS2481
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)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(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
TPS2481EVM-001 功能描述:電源管理IC開(kāi)發(fā)工具 Eval Mod for TPS2481 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)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(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
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(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
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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