參數(shù)資料
型號(hào): L6730
廠商: 意法半導(dǎo)體
英文描述: Adjustable step-down controller with synchronous rectification
中文描述: 可調(diào)式降壓同步整流控制器
文件頁數(shù): 20/52頁
文件大?。?/td> 1370K
代理商: L6730
Device description
L6730 - L6730B
20/52
5.7
Driver section
The high-side and low-side drivers allow for the use of different types of power MOSFETs (also
multiple MOSFETs to reduce the R
DSON
), maintaining fast switching transitions. The low-side
driver is supplied by V
CCDR
while the high-side driver is supplied by the BOOT pin. A predictive
dead time control avoids MOSFETs cross-conduction maintaining very short dead time duration
(see
Figure 12.
).
The control monitors the phase node in order to sense the low-side body diode recirculation. If
the phase node voltage is less than a certain threshold (–350mV typ.) during the dead time, it
will be reduced in the next PWM cycle. The predictive dead time control does not work when
the high-side body diode is conducting because the phase node does not go negative. This
situation happens when the converter is sinking current for example and, in this case, an
adaptive dead time control operates.
Figure 12. Dead times
相關(guān)PDF資料
PDF描述
L6730B Adjustable step-down controller with synchronous rectification
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L6730TR Adjustable step-down controller with synchronous rectification
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L6740LTR Hybrid controller (4+1) for AMD SVID and PVID processors
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6730_09 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification
L6730B 功能描述:DC/DC 開關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6730BTR 功能描述:DC/DC 開關(guān)控制器 Adjustable Step Down Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
L6730C 功能描述:IC REG CTRLR BUCK PWM VM 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:100% 電源電壓:8.2 V ~ 30 V 降壓:無 升壓:無 回掃:是 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:0°C ~ 70°C 封裝/外殼:8-DIP(0.300",7.62mm) 包裝:管件 產(chǎn)品目錄頁面:1316 (CN2011-ZH PDF)
L6730CQ 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Adjustable step-down controller with synchronous rectification