- 您現在的位置：買賣IC網 > PDF目錄98281 > TPS40211DRCTG4 (TEXAS INSTRUMENTS INC) SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10 PDF資料下載
參數資料
| 型號： | TPS40211DRCTG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封裝： | GREEN, PLASTIC, SON-10 |
| 文件頁數： | 14/47頁 |
| 文件大小： | 1375K |
| 代理商： | TPS40211DRCTG4 |
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頁當前第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頁第45頁第46頁第47頁
1
2
3
4
10
9
8
7
RC
DIS/EN
COMP
SS
VDD
ISNS
GDRV
GND
TPS40210
C
FB
L
C
OUT
R
OUT
V
OUT
V
IN
5
FB
6
BP
R
FB
R
SENSE
UDG-07177
R
IFLT
C
IFLT
C
HF
R
1
R
2
(
)
CO
M
OUT
CO
K
g
Z
=
f
(
) (
)
SW
OUT
M
2
ISNS
SW
0.13
L
R
g
R
120 R
L
=
+
f
(
)
(
)
(
)
(
)
(
) (
)
2
L
ESR
OUT
2
OUT
ESR
L
OUT
1
2
f
R
C
Z
R
1
R
2
R
2
f
C
+
p
=
+
+
+
p
www.ti.com
SLUS772D – MARCH 2008 – REVISED APRIL 2010
Control Loop Considerations
There are two methods to design a suitable control loop for the TPS4021x. The first and preferred if equipment is
available is to use a frequency response analyzer to measure the open loop modulator and power stage gain
and to then design compensation to fit that. The usage of these tools for this purpose is well documented with
the literature that accompanies the tool and is not be discussed here.
The second option is to make an initial guess at compensation, and then evaluate the transient response of the
system to see if the compensation is acceptable to the application or not. For most systems, an adequate
response can be obtained by simply placing a series resistor and capacitor (RFB and CFB) from the COMP pin to
the FB pin as shown in Figure 27.
Figure 27. Basic Compensation Network
The natural phase characteristics of most capacitors used for boost outputs combined with the current mode
control provide adequate phase margin when using this type of compensation. To determine an initial starting
point for the compensation, the desired crossover frequency must be considered when estimating the control to
output gain. The model used is a current source into the output capacitor and load.
When using these equations, the loop bandwidth should be no more than 20% of the switching frequency, f SW. A
more reasonable loop bandwidth would be 10% of the switching frequency. Be sure to evaluate the transient
response of the converter over the expected load range to ensure acceptable operation.
(22)
(23)
(24)
Copyright 2008–2010, Texas Instruments Incorporated
21
相關PDF資料 |
PDF描述 |
|---|---|
| TPS40210DGQG4 | SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10 |
| TPS40304ADRCT | SWITCHING CONTROLLER, PQCC10 |
| TPS40304ADRCR | SWITCHING CONTROLLER, PQCC10 |
| TPS5100IPWRG4 | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| TPS5100PWLE | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS40211EVM-352 | 功能描述:電源管理IC開發工具 TPS40211EVM-352 Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| TPS40211EVM-352 | 制造商:Texas Instruments 功能描述:EVAL BOARD, TPS40211 ADJ 700mA NON SYS B |
| TPS40211QDGQRQ1 | 功能描述:LED照明驅動器 WIDE INP CRNT MODE BOOST CONTROLLER RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:SO-16N |
| TPS40-22 | 制造商:TOTAL-POWER 制造商全稱:TOTAL-POWER 功能描述:40 WATT OPEN - FRAME SWITCHING POWER SUPPLY |
| TPS40222 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.6-A, 1.25-MHz BUCK CONVERTER IN A 3 mm 3 mm SON PACKAGE |
發布緊急采購，3分鐘左右您將得到回復。