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參數(shù)資料
| 型號： | TPS40090QPWRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | GREEN, PLASTIC, TSSOP-24 |
| 文件頁數(shù)： | 5/23頁 |
| 文件大小： | 309K |
| 代理商： | TPS40090QPWRQ1 |
DROOP CURRENT
vs
CS VOLTAGE
0
10
20
30
40
50
60
70
0
0.05
0.1
0.15
0.2
0.25
0.3
VCS - V
ID
R
O
P
-
A
f
OP +
1
2p
R
OUT
C
OUT
f
ESRZ +
1
2p
R
ESR
C
OUT
SLUS845C
– JUNE 2008 – REVISED MAY 2011
Figure 6.
Feedback Loop Compensation
The TPS40090 operates in a peak current mode and the converter exhibits a single pole response with ESR
zero for which Type II compensation network is usually adequate, as shown in Figure 8.
The following equations show where the load pole and ESR zero calculations are situated.
(10)
To achieve desired bandwidth the error amplifier must compensate for modulator gain loss on the crossover
frequency and this is facilitated by placing the zero over the load pole. The ESR zero alters the modulator's -1
slope at higher frequencies. To compensate for that alteration, the pole in-error amplifier transfer function should
be added at frequency of the ESR zero as shown in Figure 7.
Copyright
2008–2011, Texas Instruments Incorporated
13
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TPS40090RHDR | 功能描述:DC/DC 開關控制器 4 Ch Multiph Buck DC/DC 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(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS40090RHDRG4 | 功能描述:DC/DC 開關控制器 4Ch Multiphase Buck DC/DC Cntrlr 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(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS40090RHDT | 功能描述:DC/DC 開關控制器 4Ch Multiphase Buck DC/DC Cntrlr 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(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS40090RHDTG4 | 功能描述:DC/DC 開關控制器 4Ch Multiphase Buck DC/DC Cntrlr 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(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS40091 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:HIGH FREQUENCY MULTIPHASE CONTROLLER |
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