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參數(shù)資料
型號: TPS40074RHLT
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, PQCC20
封裝: GREEN, PLASTIC, QFN-20
文件頁數(shù): 21/41頁
文件大小: 765K
代理商: TPS40074RHLT
www.ti.com
f
LC_Pole +
1
2p
L
C
O
+ 3559 Hz
(49)
f
ESR_Zero +
1
2p
ESR
C
O
+ 8377 Hz
(50)
100
100 k
10 k
1 k
1 M
40
50
10
20
10
20
30
0
60
Frequency Hz
Gain
dB
ESR = 0
Slope = 40 dB / decade
ESR = 0.0095
Slope = 20 dB / decade
Double Pole
ESR Zero
RP1
2
SAO
TPS40074
5
6
FB
COMP
UDG04126
CPZ1
RZ1
RPZ2
CP2
CZ2
RSET2
RSET1
SLUS617B – APRIL 2005 – REVISED OCTOBER 2006
The resulting bode plot is shown in Figure 15.
Figure 15. 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 1/10 to 1/4 times the switching frequency. To
have a phase margin greater than 45° and a gain margin greater than 6 dB.
A Type III compensation network, as shown in Figure 16, was used for this design. This network gives the best
overall flexibility for compensating the converter.
Figure 16. Type III Conpensation with TPS40074
A typical bode plot to this type of compensation network is shown in Figure 17.
28
相關(guān)PDF資料
PDF描述
TPS40074RHLRG4 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC20
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TPS40075RHLR 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC20
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS40074RHLTG4 功能描述:DC/DC 開關(guān)控制器 Mid Input Sync Buck w/Vltg Feed-Fwd 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 安裝風格: 封裝 / 箱體:CPAK
TPS40075 制造商:TI 制造商全稱:Texas Instruments 功能描述:4.5V TO 18V INPUT 10 PIN SYNCHRONOUS BUCK CONTROLLER WITH POWER GOOD
TPS40075EVM-001 功能描述:電源管理IC開發(fā)工具 15A 12V In 1.5V Out Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS40075RHLR 功能描述:DC/DC 開關(guān)控制器 Wide Input Synch Buck Controller 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 安裝風格: 封裝 / 箱體:CPAK
TPS40075RHLRG4 功能描述:DC/DC 開關(guān)控制器 Wide Input Synch Buck Controller 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 安裝風格: 封裝 / 箱體:CPAK
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