參數(shù)資料
型號(hào)： L6918ADTR
廠商： STMICROELECTRONICS
元件分類： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO28
封裝： SO-28
文件頁(yè)數(shù)： 9/35頁(yè)
文件大?。?/td> 431K
代理商： L6918ADTR
17/35
L6918 L6918A
FB and COMP has always a capacitor in series (See fig. 8). The voltage regulated by each device is then equal
to:
Where IOUT is the output current of each device (equal to the total load current ILOAD divided by the number of
devices N)
Since IFB depends on the current information about the two phases of each device, the output characteristic vs.
load current is given by:
Where ROUT is the equivalent output resistance due to the droop function and IOUT is still the output current of
each device (that is the total current delivered to the load ILOAD divided by 2.
Figure 7. Output transient response without (a) and with (b) the droop function
Figure 8. Active Droop Function Circuit
The feedback current is equal to 50
A at nominal full load (IFB =IINFO1 +IINFO2) and 70A at the OCP interven-
tion threshold, so the maximum output voltage deviation is equal to:
V
OUT
VI D
R
FB
I
FB
VI D
R
FB
R
SENSE
Rg
---------------------- I
OUT
–
=
–
=
V
OUT
VI D
R
FB
I
OUT
VI D
R
FB
R
SENSE
Rg
---------------------- I
OUT
VI D
R
FB
R
SENSE
Rg
----------------------
I
LOAD
2
---------------
–
=
–
=
–
=
VMAX
VMIN
VNOM
(a)
(b)
ESRDROP
VDROOP
Ref
COMP
FB
To VOUT
Total Current Info (IINFO1+IINFO2)
VDROOP
RFB
Ref
COMP
FB
To VOUT
Total Current Info (IINFO1+IINFO2)
VDROOP
RFB
V
OL_INTERVENTION
+R
FB
70
A
=
V
FULL _POSITIVE_LOAD
+R
FB
50
A
=
相關(guān)PDF資料
PDF描述
L6918AD SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO28
L6919CD SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO28
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L6920DTR 1.2 A SWITCHING REGULATOR, PDSO8
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6918D 功能描述:DC/DC 開(kāi)關(guān)控制器 Prog Multi-Phase Cnt 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
L6918DTR 功能描述:DC/DC 開(kāi)關(guān)控制器 Prog Multi-Phase Cnt 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
L6919 制造商:未知廠家 制造商全稱:未知廠家 功能描述:5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT
L6919C 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT
L6919CD 功能描述:DC/DC 開(kāi)關(guān)控制器 Prog Dual-Phase Cont 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
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