參數(shù)資料
型號(hào): L6711
廠商: 意法半導(dǎo)體
英文描述: 3 PHASE CONTROLLER WITH DYNAMIC VID AND SELECTABLE DACs
中文描述: 3相控制器,動(dòng)態(tài)VID和可選數(shù)模轉(zhuǎn)換器
文件頁(yè)數(shù): 34/38頁(yè)
文件大?。?/td> 591K
代理商: L6711
L6711
34/38
19 EMBEDDING L6711-BASED VRDS…
When embedding the VRD into the application, additional care must be taken since the whole VRD is a
switching DC/DC regulator and the most common system in which it has to work is a digital system such
as MB or similar. In fact, latest MB has become faster and powerful: high speed data bus are more and
more common and switching-induced noise produced by the VRD can affect data integrity if not following
additional layout guidelines. Few easy points must be considered mainly when routing traces in which
switching high currents flow (switching high currents cause voltage spikes across the stray inductance of
the traces causing noise that can affect the near traces):
Keep safe guarding distance between high current switching VRD traces and data buses, especially if
high-speed data bus to minimize noise coupling.
Keep safe guard distance or filter properly when routing bias traces for I/O sub-systems that must walk
near the VRD.
Possible causes of noise can be located in the PHASE connections, Mosfet gate drive and Input voltage
path (from input bulk capacitors and HS drain). Also PGND connections must be considered if not insisting
on a power ground plane. These connections must be carefully kept far away from noise-sensitive data
bus.
Since the generated noise is mainly due to the switching activity of the VRM, noise emissions depend on
how fast the current switch. To reduce noise emission levels, it is also possible, in addition to the previous
guidelines, to reduce the current slope and then to increase the switching times: this will cause, as a con-
sequence of the higher switching time, an increase in switching losses that must be considered in the ther-
mal design of the system.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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L6711TR 功能描述:DC/DC 開(kāi)關(guān)控制器 3 PHASE CONTROLLER RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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
L6712 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TWO-PHASE INTERLEAVED DC/DC CONTROLLER
L6712_05 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TWO-PHASE INTERLEAVED DC/DC CONTROLLER
L6712A 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:TWO-PHASE INTERLEAVED DC/DC CONTROLLER