參數(shù)資料
型號： L6713ATR
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： 2 A SWITCHING CONTROLLER, 225 kHz SWITCHING FREQ-MAX, PQFP64
封裝： 10 X 10 MM, TQFP-64
文件頁數(shù)： 47/64頁
文件大?。?/td> 801K
代理商： L6713ATR
L6713A
Driver section
51/64
20
Driver section
The integrated high-current drivers allow using different types of power MOS (also multiple
MOS to reduce the equivalent RDS(on)), maintaining fast switching transition.
The drivers for the high-side MOSFETs use BOOTx pins for supply and PHASEx pins for
return. The drivers for the low-side MOSFETs use VCCDRx pin for supply and PGNDx pin
for return. A minimum voltage at VCCDRx pin is required to start operations of the device.
VCCDRx pins must be connected together.
The controller embodies a sophisticated anti-shoot-through system to minimize low side
body diode conduction time maintaining good efficiency saving the use of Schottky diodes:
when the high-side MOSFET turns OFF, the voltage on its source begins to fall; when the
voltage reaches 2 V, the low-side MOSFET gate drive is suddenly applied. When the low-
side MOSFET turns OFF, the voltage at LGATEx pin is sensed. When it drops below 1 V, the
high-side MOSFET gate drive is suddenly applied.
If the current flowing in the inductor is negative, the source of high-side MOSFET will never
drop. To allow the turning on of the low-side MOSFET even in this case, a watchdog
controller is enabled: if the source of the high-side MOSFET doesn't drop, the low side
MOSFET is switched on so allowing the negative current of the inductor to recirculate. This
mechanism allows the system to regulate even if the current is negative.
The BOOTx and VCCDRx pins are separated from IC's power supply (VCC pin) as well as
signal ground (SGND pin) and power ground (PGNDx pin) in order to maximize the
switching noise immunity. The separated supply for the different drivers gives high flexibility
in MOSFET choice, allowing the use of logic-level MOSFET. Several combination of supply
can be chosen to optimize performance and efficiency of the application.
Power conversion input is also flexible; 5 V, 12 V bus or any bus that allows the conversion
(See maximum duty cycle limitations) can be chosen freely.
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6714 功能描述:功率驅(qū)動器IC 4 Phase Controller RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
L6714TR 功能描述:功率驅(qū)動器IC 4 Phase Controller RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
L6716 制造商:STMicroelectronics 功能描述:DC DC Cntrlr Quad-OUT Sync Step Down 48-Pin VFQFPN EP Tray 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Trays 制造商:STMicroelectronics 功能描述:2/3/4 Phase Controlr Embedded Driver
L6716TR 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 2/3/4 phase CNTRL Embedded Drivers RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel
L6717 制造商:STMicroelectronics 功能描述:High-Efficiency Hybrid AM2r2 Controller 48-Pin VFQFPN Tray 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Trays 制造商:STMicroelectronics 功能描述:High EFF Hybrid CTRL I2C Embedded Driver
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