參數(shù)資料
型號(hào)： L6710
廠商： 意法半導(dǎo)體
英文描述： 6 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT
中文描述： 6位可編程雙相與動(dòng)態(tài)VID管理控制器
文件頁(yè)數(shù)： 12/34頁(yè)
文件大小： 1610K
代理商： L6710
L6710
12/34
Since the current is read in differential mode, also negative current information is kept; this allow the de-
vice to check for dangerous returning current between the two phases assuring the complete equalization
between the phase's currents. From the current information of each phase, information about the total cur-
rent delivered (I
FB
=I
INFO1
+ I
INFO2
) and the average current for each phase (I
AVG
= (I
INFO1
+ I
INFO2
)/2 )
is taken. I
INFOX
is then compared to I
AVG
to give the correction to the PWM output in order to equalize the
current carried by the two phases.
The transconductance resistor Rg can be designed in order to have current information of 25
μ
A per phase
at full nominal load; the over current intervention threshold is set at 140% of the nominal (I
I
NFOx
= 35
μ
A).
According to the above relationship, the over current threshold (I
OCPx
) for each phase, which has to be
placed at 1/2 of the total delivered maximum current, results:
Since the device senses the output current across the low-side mosfets (or across a sense resistors in
series with them) the device limits the bottom of the inductor current triangular waveform: an over current
is detected when the current flowing into the sense element is greater than I
OCPx
(I
INFOx
>35
μ
A).
Introducing now the maximum ON time dependence with the delivered current (where T is the switching
period T=1/F
SW
):
Where I
OUT
is the output current.
This linear dependence has a value at zero load of 0.80·T and at maximum current of 0.40·T typical and
results in two different behaviors of the device:
Figure 3. Current reading timing (left) and circuit (right)
I
OCPx
R
SENSE
---------------------------
Rg
I
R
35
μ
A
-----------------------------------------
=
=
T
ON,MAX
0.80
I
FB
–
5.73k
(
)
T
0.80
R
Rg
---------------------
I
OUT
5.73k
–
T =
T
0.80 T I
FB
0.40 T I
FB
0
μ
A
70
μ
A
=
=
T
=
=
=
=
R
S
Rg
50
μ
A
I
ISEN1
I
P
Rg
LGATE1
ISEN1
PGNDS
Rg
50
μ
A
Rg
100
μ
A
I
P
ISEN2
R
S
I
ISEN2
TOTAL
CURRENT
INFO (I
FB
)
I
LS1
I
LS2
Track & Hold
I
INFO2
I
INFO1
相關(guān)PDF資料
PDF描述
L6712A TWO-PHASE INTERLEAVED DC/DC CONTROLLER
L6712AD TWO-PHASE INTERLEAVED DC/DC CONTROLLER
L6712ADTR TWO-PHASE INTERLEAVED DC/DC CONTROLLER
L6712AQ TWO-PHASE INTERLEAVED DC/DC CONTROLLER
L6712AQTR TWO-PHASE INTERLEAVED DC/DC CONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6710TR 功能描述:功率驅(qū)動(dòng)器IC 6-Bit Dual Ph Contlr 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(shí)間: 下降時(shí)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
L6711 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
L6711_06 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3 Phase controller with dynamic VID and selectable DACs
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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*