參數(shù)資料
型號： L6710
廠商： 意法半導體
英文描述： 6 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT
中文描述： 6位可編程雙相與動態(tài)VID管理控制器
文件頁數(shù)： 21/34頁
文件大小： 1610K
代理商： L6710
21/34
L6710
Figure 14. Current Sharing Control Loop.
Where
I
READ
is the difference between one phase current and the ideal current (I
MAX
/2).
For Rsense=4m
and Imax=40A the current sharing error is equal to 2.5%, neglecting errors due to Rg
and Rsense mismatches.
Average Current Mode (ACM) Control Loop
The average current mode control loop is reported in figure 15. The current information IFB sourced by
the FB pin flows into RFB implementing the dependence of the output voltage from the read current.
The ACM control loop gain results (obtained opening the loop after the COMP pin)
Where:
■
is the equivalent output resistance determined by the droop function;
■
Z
P
(s) is the impedance resulting by the parallel of the output capacitor (and its ESR) and the applied
load Ro;
■
Z
F
(s) is the compensation network impedance;
■
Z
L
(s) is the parallel of the two inductor impedance;
■
A(s) is the error amplifier gain;
V
V
OSC
■
is the ACM PWM transfer function where Vosc is the oscillator ramp amplitude and
has a typical value of 3V
Removing the dependence from the Error Amplifier gain, so assuming this gain high enough, the control
loop gain results:
G
LOOP
s
( )
5
V
OSC
With further simplifications, it results:
L1
L2
+
+
PWM1
1/5
1/5
I
INFO2
I
INFO1
PWM2
COMP
V
OUT
CURRENT
SHARING
DUTY CYCLE
CORRECTION
D02IN1393
G
LOOP
s
)
(
)
PWM Z
s
-------------------------------------------------------------------------------+
( )
R
Z
s
A s
( )
A s
( )
)
Z
P
s
( )
Z
L
s
( )
+
(
)
--------------
1
-----------
+
R
FB
+
–
=
R
DROOP
Rg
----------------------
R
FB
=
PWM
4
5
--
------------------
=
4
--
------------------
Z
s
( )
+
Z
P
s
( )
Z
L
s
( )
-----------------------------------
Rg
-------
Z
s
( )
R
FB
--------------
+
–
=
G
LOOP
s
( )
4
5
--
V
V
OSC
------------------
Z
s
( )
R
FB
--------------
Ro
--------+
R
R
L
2
Ro
------
+
1
s Co
R
//Ro
ESR
+
(
)
+
s
2
Co
L
2
--
s
2 Ro
---------------
Co ESR
Co
L
2
------
+
+
1
+
+
----------------------------------------------------------------------------------------------------------------------------------
–
=
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相關代理商/技術參數(shù)
參數(shù)描述
L6710TR 功能描述:功率驅動器IC 6-Bit Dual Ph Contlr RoHS:否 制造商:Micrel 產品: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
L6711 功能描述:DC/DC 開關控制器 3 PHASE CONTROLLER RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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 開關控制器 3 PHASE CONTROLLER RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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
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