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參數(shù)資料

型號(hào)：	TPS2492PW
廠商：	TEXAS INSTRUMENTS INC
元件分類：	電源管理
英文描述：	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14
封裝：	GREEN, PLASTIC, TSSOP-14
文件頁(yè)數(shù)：	11/33頁(yè)
文件大?。?/td>	1096K
代理商：	TPS2492PW

www.ti.com

SLUSA65A – JULY 2010 – REVISED AUGUST 2010

Automatic Restart (Figure 18)

The TPS2493 automatically initiates a restart after a fault has caused it to turn off the external FET. Internal

control circuits use CT to count 16 cycles before re-enabling the external FET. This sequence repeats if the fault

persists. TIMER has a 1:10 charge-to-discharge current ratio, and uses a 1-V lower threshold. The fault-retry

duty cycle specification in the Electrical Characteristics Table quantifies this behavior. This small duty cycle often

reduces the average short-circuit power dissipation to levels associated with normal operation and reduces the

need for additional measures such as oversized heatsinking. Figure 18 demonstrates that the initial timing cycle

starts with VTIMER at zero V, subsequent cycles start with VTIMER at 1 V, and a succesful restart occurs after a 16

cycle delay.

Figure 18. TPS2492/93 Restart Cycle Timing

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Product Folder Link(s): TPS2492 TPS2493

相關(guān)PDF資料	PDF描述
TPS2540RTER	1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC16
TPS2540RTET	1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC16
TPS2541RTET	1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC16
TPS2550DBV	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6
TPS2551DRVR	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
TPS2492PW	制造商:Texas Instruments 功能描述:HOT SWAP CONTROLLER IC 80V TSSOP-14
TPS2492PWR	功能描述:熱插拔功率分布 Pos Hi-Vltg Pwr-Ltd Hotswap Controller 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
TPS2493EVM-002	功能描述:電源管理IC開發(fā)工具 TPS2493 Hot Swap ontroller Eval Mod 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
TPS2493EVM-004	功能描述:電源管理IC開發(fā)工具 TPS2493 Hot Swap ontroller Eval Mod 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
TPS2493PW	功能描述:熱插拔功率分布 Pos Hi-Vltg Pwr-Ltd Hotswap Controller 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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