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參數(shù)資料
| 型號(hào)： | TPS54327DDAR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 5.7 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | GREEN, PLASTIC, MS-012BA, SOP-8 |
| 文件頁數(shù)： | 17/18頁 |
| 文件大?。?/td> | 399K |
| 代理商： | TPS54327DDAR |
SLVSAG1 – NOVEMBER 2010
www.ti.com
cycle begins. In subsequent switching cycles, the on-time is set to a fixed value and the current is monitored in
the same manner. If the over current condition exists for 7 consecutive switching cycles, the internal OCL
threshold is set to a lower level, reducing the available output current. When a switching cycle occurs where the
switch current is not above the lower OCL threshold, the counter is reset and the OCL limit is returned to the
higher value.
There are some important considerations for this type of over-current protection. The load current one half of the
peak-to-peak inductor current higher than the over-current threshold. Also when the current is being limited, the
output voltage tends to fall as the demanded load current may be higher than the current available from the
converter. This may cause the output voltage to fall. When the over current condition is removed, the output
voltage will return to the regulated value. This protection is non-latching.
UVLO Protection
Undervoltage lock out protection (UVLO) monitors the voltage of the VREG5 pin. When the VREG5 voltage is lower
than UVLO threshold voltage, the TPS54327 is shut off. This is protection is non-latching.
Thermal Shutdown
TPS54327 monitors the temperature of itself. If the temperature exceeds the threshold value (typically 165°C),
the device is shut off. This is non-latch protection.
8
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s): TPS54327
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| TPS54327DRCR | 制造商:Texas Instruments 功能描述:IC REG BUCK SYNC ADJ 3A 10SON 制造商:Texas Instruments 功能描述:3A Single Sync DC/DC converter |
| TPS54327DRCT | 制造商:Texas Instruments 功能描述:3A SINGLE SYNC DC/DC CONVERTER - Tape and Reel 制造商:Texas Instruments 功能描述:3A SINGLE SYNC DC/DC CONVERTER - Cut TR (SOS) 制造商:Texas Instruments 功能描述:IC REG BUCK SYNC ADJ 3A 10SON 制造商:Texas Instruments 功能描述:IC SYNC STEP DOWN 700KHZ SO 制造商:Texas Instruments 功能描述:IC, SYNC STEP DOWN, 700KHZ, SON-10 制造商:Texas Instruments 功能描述:Voltage Regulators - Switching Regulators 4.5-18Vin,3A Sync SD DCAP Mode Cnvrtr 制造商:Texas Instruments 功能描述:IC, SYNC STEP DOWN, 700KHZ, SON-10, Primary Input Voltage:18V, No. of Outputs:1, Output Voltage:7V, Output Current:3A, Voltage Regulator Case Style:SON, No. of Pins:10, Operating Temperature Min:-40C, Operating Temperature Max:85C, 制造商:Texas Instruments 功能描述:3A Single Sync DC/DC converter 制造商:Texas Instruments 功能描述:DC-DC CONV, BUCK, ADJ, 700KHZ, SON-10, Primary Input Voltage:18V, No. of Outputs:1, Output Voltage:7V, Output Current:3A, No. of Pins:10, Operating Temperature Min:-40C, Operating Temperature Max:85C, MSL:MSL 2 - 1 year , RoHS Compliant: Yes |
| TPS54327EVM-686 | 功能描述:電源管理IC開發(fā)工具 TPS54327 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 |
| TPS54328 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:4.5V to 18V Input, 3-A Synchronous Step-Down SWIFT? Converter with Eco-Mode? |
| TPS54328DDA | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 4.5V-18Vin,3A Synch Step-Down SWIFT RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
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