- 您現在的位置：買賣IC網 > PDF目錄98281 > TPS40075RHLR (TEXAS INSTRUMENTS INC) 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC20 PDF資料下載
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： | 26/44頁 |
| 文件大小： | 806K |
| 代理商： | TPS40075RHLR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁當前第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁
www.ti.com
100
100 k
10 k
1 k
1 M
10
20
10
20
30
40
0
Frequency Hz
Gain
dB
High Frequency Gain
fZ1
fZ2
fP2
fP1
V
O + VFB
R
Z1 ) RSET
R
SET
(49)
R
SET +
R
SET1
R
SET2
R
SET1 ) RSET2
(50)
GAIN +
R
PZ2
R
Z1
R
P1
R
Z1)RP1
(51)
f
P1 +
1
2p
R
P1
C
PZ1
(52)
f
P2 +
C
P2 ) CZ2
2p
R
PZ2
C
P2
C
Z2
^
1
2p
R
PZ2
C
P2
(53)
f
Z1 +
1
2p
R
Z1
C
PZ1
(54)
f
Z2 +
1
2p
R
PZ2 ) RP1
C
Z2
^
1
2p
R
PZ2
C
Z2
(55)
SLUS676A – MAY 2006 – REVISED SEPTEMBER 2007
A typical bode plot to this type of compensation network is shown in Figure 32.
Figure 32. Type III Compensation Bode Plot
The high frequency gain and the break (pole and zero) frequencies are calculated using the following equations.
Using this PWM and L-C bode plot the following actions ensure stability.
1. Place two zero’s close to the double pole, i.e. fZ1 = fZ2 = 3559 Hz
2. Place a pole at one octave below the desired crossover frequency. The crossover frequency was selected as
one quarter the switching frequency, fCO = 100 kHz, fP1 = 50 kHz
3. Place the second pole about an octave above fco. This ensures that the overall system gain falls off quickly to
give good gain margin, fP2 = 200 kHz
4. The high-frequency gain is sufficient to ensure 0 dB at the required crossover frequency, GAIN = -1
GAIN
of PWM and LC at the crossover frequency, GAIN = 17.6 dB, or 7.586
32
Copyright 2006–2007, Texas Instruments Incorporated
Product Folder Link(s) :TPS40075
相關PDF資料 |
PDF描述 |
|---|---|
| TPS40075RHLTG4 | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC20 |
| TPS40077PWPR | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| TPS40077PWPRG4 | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| TPS40077PWPG4 | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| TPS40090QPWRQ1 | SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO24 |
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 |
發布緊急采購，3分鐘左右您將得到回復。