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參數(shù)資料
型號(hào): TPS40077PWPG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝: GREEN, PLASTIC, HTSSOP-16
文件頁數(shù): 25/43頁
文件大小: 847K
代理商: TPS40077PWPG4
f Frequency kHz
60
50
40
30
20
10
0
10
20
30
Gain
dB
G028
0.1
1
10
1k
100
ESR Zero
Double Pole
ESR = 0.16
Slope = –20 dB/Decade
FB
COMP
TPS40077
SS
6
7
8
V
OUT
R
P1
R
Z1
R
PZ2
R
SET
C
PZ1
C
Z2
C
P2
S0240-01
www.ti.com ..................................................................................................................................................... SLUS714D – JANUARY 2007 – REVISED APRIL 2009
Figure 31. PWM and LC Filter Gain
The next step is to establish the required compensation gain to achieve the desired overall system response.
The target response is to have the crossover frequency between 1/9 and 1/5 times the switching frequency, in
order to have a phase margin greater than 45° and a gain margin greater than 6 dB.
A type-III compensation network, shown in Figure 32, was used for this design. This network gives the best
overall flexibility for compensating the converter.
Figure 32. Type-III Compensation With the TPS40077
A typical Bode plot for this type of compensation network is shown in Figure 33.
Copyright 2007–2009, Texas Instruments Incorporated
31
Product Folder Link(s) :TPS40077
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相關(guān)代理商/技術(shù)參數(shù)
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TPS40090 制造商:TI 制造商全稱:Texas Instruments 功能描述:HIGH FREQUENCY MULTIPHASE CONTROLLER
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TPS40090EVM-002 功能描述:電源管理IC開發(fā)工具 TPS40090-002 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
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