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參數(shù)資料
| 型號： | L6917BDTR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 5 BIT PROGRAMMABLE DUAL-PHASE CONTROLLER |
| 中文描述： | 5位可編程雙相控制器 |
| 文件頁數(shù)： | 20/27頁 |
| 文件大?。?/td> | 411K |
| 代理商： | L6917BDTR |
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L6917
20/27
I
Given the voltage loop bandwidth
ω
TV
, the current loop bandwidth wTI is extracted from the following:
Rs R
Ro Rg
ω
O
Ro Rg
I
Once the current loop bandwidth is defined, the R
F
C
F
network may be designed as shown previously.
DemoBoard Description
The L6917 demo board shows the operation of the device in a dual phase application. This evaluation board
allows voltage adjustability (1.100V - 1.850V) through the switches S0-S4 and high output current capability.
The 12V input rail supplies both the device and the high-side drain for the power conversion.
The board has been layed out with the possibility to use up to two D
2
PACK mosfets for the low side switch in
order to give maximum flexibility in the mosfet’s choice.
The four layers demo board’s copper thickness is of 70
μ
m in order to minimize conduction losses considering
the high current that the circuit is able to deliver.
Figure 13 shows the demo board’s schematic circuit.
Figure 13. Demo Board Schematic
ω
TI
ω
TV
-----------------------
--------------
ω
TV
-----------------------
Ro C
ESR C
OUT
---------------------------------
ω
TV
Rs R
ESR Rg
-------------------------
=
=
=
PGOOD
PGND
PGNDS2
ISEN2
LGATE2
VSEN
FB
PHASE2
UGATE2
BOOT2
VCC
COMP
SGND
OSC / INH
VID0
VID1
VID2
VID3
VID4
PGNDS1
ISEN1
LGATE1
PHASE1
UGATE1
BOOT1
VCCDR
6
24
25
26
27
16
15
2
5
4
3
1
13
14
22
21
20
19
18
17
7
28
23
10
9
8
11
12
FBR
FBG
C1
R7
R8
C2
R4
R3
Q3
Q4
C3
L2
C7
R10
D3
C5
C11..C13
C14,
R1
JP3
R2
S1
S0
S3
S2
S4
R5
R6
Q1
L1
Q2
C4
D4
C6
Vin
GNDin
GNDCORE
VoutCORE
PGOOD
FBG
FBR
U1
L6917
DZ1
C8
JP2
JP1
R13
R15
R12
R14
C9,C10
R9
R18
D1
R17
R16
Q1a
Q3a
D2
R19
R20
JP5
JP4
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相關(guān)代理商/技術(shù)參數(shù) |
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| L6918AD | 功能描述:DC/DC 開關(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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