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參數(shù)資料
| 型號(hào)： | TPS40100RGER |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2 A SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PQCC24 |
| 封裝： | GREEN, PLASTIC, QFN-24 |
| 文件頁數(shù)： | 7/39頁 |
| 文件大?。?/td> | 762K |
| 代理商： | TPS40100RGER |
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gm Sense Amplifier Transconductance S
R
GM
Gain
Setting
Resistance
k
Control to Output Gain of the Converter
KCO(s) +
VIN KPWM KFILT(s)
1 ) Y(s)
KCS KPWM VIN
(dimensionless)
(24)
RLOAD
RLDC ) RLOAD
RESR COUT s ) 1
L COUT)RLOAD
RLDC)RLOAD
s2 )
L)COUT RLOAD RESR)RLDC RLOAD)RLDC RESR
RLOAD
s ) 1
KFILT(s) +
RESR COUT s ) 1
L
COUT s2 )
L)RLOAD COUT RESR)RLDC
RLOAD
s ) 1
(26)
TPS40100
SLUS601–MAY 2005
APPLICATION INFORMATION (continued)
CURRENT SENSE AMPLIFIER GAIN SETTING RESISTANCE
vs
CURRENT SENSE AMPLIFIER GAIN
Figure 5.
A model that gives a good first order approximation to the control to output gain of a converter based on the
TPS40100 controller is shown in Figure 6. This model can be used in conjunction with a simulator to generate ac
and transient response plots. The block labeled “X2” is a simple gain of 2. The amplifier gm can be a simple
voltage controlled current source with a gain equal to the selected gm for the current sense amplifier (CSA).
Analytically, the control to output gain of this model ( Figure 6) can be expressed as follows:
KFILT(s) is the output filter transfer function:
KFILT(s) =
(25)
(dimensionless)
Usually, RLDC << RLOAD and the following approximation holds:
Y(s) is the current signal transfer function and assumes that the inductor intrinsic time constant is matched to the
current sense filter network time constant.
15
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相關(guān)代理商/技術(shù)參數(shù) |
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| TPS40100RGERG4 | 功能描述:DC/DC 開關(guān)控制器 Wide In Range Sync Buck for Sequencing RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)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(fēng)格: 封裝 / 箱體:CPAK |
| TPS40100RGET | 功能描述:DC/DC 開關(guān)控制器 Wide In Range Sync Buck for Sequencing RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)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(fēng)格: 封裝 / 箱體:CPAK |
| TPS40100RGETG4 | 功能描述:DC/DC 開關(guān)控制器 Wide In Range Sync Buck for Sequencing RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)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(fēng)格: 封裝 / 箱體:CPAK |
| TPS40101 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:MIDRANGE INPUT SYNCHRONOUS BUCK CONTROLLER WITH ADVANCED SEQUENCING AND OUTPUT MARGINING |
| TPS40101RGER | 功能描述:DC/DC 開關(guān)控制器 Mid Range Input Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)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(fēng)格: 封裝 / 箱體:CPAK |
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