- 您現在的位置：買賣IC網 > PDF目錄98280 > TPS24701DGK (TEXAS INSTRUMENTS INC) POWER SUPPLY SUPPORT CKT, PDSO8 PDF資料下載
參數資料
| 型號： | TPS24701DGK |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | GREEN, PLASTIC, MSOP-8 |
| 文件頁數： | 3/29頁 |
| 文件大小： | 1956K |
| 代理商： | TPS24701DGK |
第1頁第2頁當前第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頁第29頁
SLVSAL3B
– MARCH 2011 – REVISED MAY 2011
SYSTEM OPERATION
INTRODUCTION
The TPS24700/1 provides all the features needed for a positive hot-swap controller. These features include:
Undervoltage lockout
Adjustable (system-level) enable
Turn-on inrush limiting
High-side gate drive for an external N-channel MOSFET
Adjustable overload timeout
— also called an electronic circuit breaker
Charge-complete indicator for downstream converter coordination
A choice of latch (TPS24700) or automatic restart mode (TPS24701)
The typical application circuit, shown on the front page of this datasheet, and oscilloscope plots, shown in
Figure 23 through Figure 24 and Figure 26 through Figure 28, demonstrate many of the functions described
previously.
BOARD PLUG IN
Figure 23 illustrates the inrush current that flows when a hot-swap board under the control of the TPS24700/1 is
plugged into an input power bus. Only the bypass capacitor charge current and small bias currents are evident
when a board is first plugged in. The TPS24700/1 is held inactive for a short period while internal voltages
stabilize. In this short period, GATE and TIMER are held low and PGb is held open-drain. When the voltage on
the internal VCC rail exceeds approximately 1.5 V, the power-on reset (POR) circuit initializes the TPS24700/1
and a start-up cycle is ready to take place.
GATE, TIMER, and PGb are released after the internal voltages have stabilized and the external EN (enable)
threshold has been exceeded. The part begins sourcing current from the GATE pin to turn on MOSFET M1. The
TPS24700/1 monitors the drain current passing through MOSFET M1 by measuring the voltage V(VCC - SENSE).
Based on the measurement, the TPS24700/1 limits the drain current in the MOSFET to be no more than the
current limit ILIM, so as to alleviate the charging impact of the downstream bulk storage capacitors.
Figure 23. Inrush Mode at Hot-Swap Circuit Insertion
Copyright
2011, Texas Instruments Incorporated
11
相關PDF資料 |
PDF描述 |
|---|---|
| TPS24710DGS | POWER SUPPLY SUPPORT CKT, PDSO10 |
| TPS24710 | POWER SUPPLY SUPPORT CKT, PDSO10 |
| TPS24711 | POWER SUPPLY SUPPORT CKT, PDSO10 |
| TPS24711DGSR | POWER SUPPLY SUPPORT CKT, PDSO10 |
| TPS2481PW | POWER SUPPLY SUPPORT CKT, PDSO20 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS24701DGKR | 功能描述:熱插拔功率分布 2.5-18V Hi Eff Hot- Swap Controller 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 |
| TPS24701EVM-002 | 功能描述:電源管理IC開發工具 TPS24701 Eval Mod 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 |
| TPS24710DGS | 功能描述:熱插拔功率分布 2.5-18V Hi Eff Hot- Swap Controller 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 |
| TPS24710DGSR | 功能描述:熱插拔功率分布 2.5-18V Hi Eff Hot- Swap Controller 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 |
| TPS24710EVM-003 | 功能描述:電源管理IC開發工具 TPS24710 Eval Mod 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 |
發布緊急采購，3分鐘左右您將得到回復。