參數(shù)資料
型號(hào)： TPS40210DGQG4
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 穩(wěn)壓器
英文描述： SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10
封裝： GREEN, PLASTIC, MSOP-10
文件頁(yè)數(shù)： 14/47頁(yè)
文件大小： 1375K
代理商： TPS40210DGQG4
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
Product Folder Link(s): TPS40210 TPS40211
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS40210DGQR 功能描述:電流型 PWM 控制器 Wide Input Rnge Crnt Mode Boost Cntrlr RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
TPS40210DGQRG4 功能描述:電流型 PWM 控制器 Wide In Range Crnt Mode Boost Cntrlr RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
TPS40210DRCR 功能描述:電流型 PWM 控制器 Wide Inp Rng Crnt Mode Boost Cntrlr RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
TPS40210DRCRG4 功能描述:電流型 PWM 控制器 Wide In Range Crnt Mode Boost Cntrlr RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
TPS40210DRCT 功能描述:電流型 PWM 控制器 Wide Inp Rng Crnt Mode Boost Cntrlr RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
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