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參數資料
型號: TPS40075RHLR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩壓器
英文描述: 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC20
封裝: PLASTIC, QFN-20
文件頁數: 25/44頁
文件大小: 806K
代理商: TPS40075RHLR
www.ti.com
f
LC_Pole +
1
2p
L
C
O
+ 3559 Hz
(47)
f
ESR_Zero +
1
2p
ESR
C
O
+ 8377 Hz
(48)
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
TPS40075
5
6
FB
COMP
UDG04126
CPZ1
RZ1
RPZ2
CP2
CZ2
RSET2
RSET1
SLUS676A – MAY 2006 – REVISED SEPTEMBER 2007
The resulting bode plot is shown in Figure 30.
Figure 30. 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 31, was used for this design. This network gives the best
overall flexibility for compensating the converter.
Figure 31. Type III Conpensation with TPS40075
Copyright 2006–2007, Texas Instruments Incorporated
31
Product Folder Link(s) :TPS40075
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相關代理商/技術參數
參數描述
TPS40075RHLRG4 功能描述:DC/DC 開關控制器 Wide Input Synch Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
TPS40075RHLT 功能描述:DC/DC 開關控制器 Wide Input Synch Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
TPS40075RHLTG4 功能描述:DC/DC 開關控制器 Wide Input Synch Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK
TPS40077 制造商:TI 制造商全稱:Texas Instruments 功能描述:HIGH-EFFICIENCY, MIDRANGE-INPUT, SYNCHRONOUS BUCK CONTROLLER WITH VOLTAGE FEED-FORWARD
TPS40077_07 制造商:TI 制造商全稱:Texas Instruments 功能描述:HIGH-EFFICIENCY, MIDRANGE-INPUT, SYNCHRONOUS BUCK CONTROLLER WITH VOLTAGE FEED-FORWARD
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