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參數(shù)資料
| 型號： | L6919 |
| 英文描述： | 5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER WITH DYNAMIC VID MANAGEMENT |
| 中文描述： | 5位可編程雙相與動態(tài)VID管理控制器 |
| 文件頁數(shù)： | 17/32頁 |
| 文件大?。?/td> | 558K |
| 代理商： | L6919 |
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L6919C
plication of the load the inductor is charged by a voltage equal to the difference between the input and the output
voltage, during the removal it is discharged only by the output voltage. The following expressions give approx-
imate response time for
I load transient in case of enough fast compensation network response:
The worst condition depends on the input voltage available and the output voltage selected. Anyway the worst
case is the response time after removal of the load with the minimum output voltage programmed and the max-
imum input voltage available.
Figure 11. Inductor ripple current vs V
OUT
MAIN CONTROL LOOP
The control loop is composed by the Current Sharing control loop and the Average Current Mode control loop.
Each loop gives, with a proper gain, the correction to the PWM in order to minimize the error in its regulation:
the Current Sharing control loop equalize the currents in the inductors while the Average Current Mode control
loop fixes the output voltage equal to the reference programmed by VID. Figure 12 reports the block diagram of
the main control loop.
Figure 12. Main Control Loop Diagram
t
application
V
OUT
V
IN
–
------------------------------
=
t
removal
V
OUT
I
--------------
=
0
1
2
3
4
5
6
7
8
9
0.5
1.5
2.5
3.5
Output Voltage [V]
I
L=3
H,
Vin=12V
L=2
μ
H,
Vin=12V
L=1.5
μ
H, Vin=12V
μ
H,
L=2
L=1.5
μ
H,
Vin=5V
L=3
μ
H, Vin=5V
L1
L2
+
+
PWM1
1/5
+
-
1/5
I
INFO2
I
INFO1
4/5
Z
F(S)
PWM2
C
O
FB
COMP
R
O
ERROR
AMPLIFIER
REFERENCE
PROGRAMMED
BY VID
CURRENT
SHARING
DUTY CYCLE
CORRECTION
R
FB
D02IN1392
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| L6919CDTR | 功能描述:DC/DC 開關(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 |
| L6919E | 功能描述:DC/DC 開關(guān)控制器 5-Bit Dual Ph Contlr 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 |
| L6919ETR | 功能描述:DC/DC 開關(guān)控制器 5-Bit Dual Ph Contlr 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 |
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