- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382678 > TPS5103IDBR SMPS Controller PDF資料下載
參數(shù)資料
| 型號： | TPS5103IDBR |
| 英文描述： | SMPS Controller |
| 中文描述： | 開關(guān)電源控制器 |
| 文件頁數(shù)： | 19/31頁 |
| 文件大?。?/td> | 1083K |
| 代理商： | TPS5103IDBR |
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頁當前第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
TPS5102
DUAL, HIGH-EFFICIENCY CONTROLLER FOR NOTEBOOK PC POWER
SLVS239 - SEPTEMBER 1999
19
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
loop-gain compensation (continued)
_
+
R4
C3
C2
R2
R3
Vref
To PWM
VO
Assuming C2 << C3, the equation is:
Comp
(1
sC3R4)
sC2R4)
sC3R2(1
There is one pole, one zero and one integrator:
Zero
1
2 C3R4
Pole
1
2 C2R4
Integrator
1
2 fC3R2
The loop-gain concept is used to design a stable and fast feedback control. The loop-gain equation is derived
by the control-to-output transfer function times the compensation:
Loop–gain
Vod
Comp
The amplitude and the phase of this equation can be drawn with software such as MathCad. In turn, the stability
can be easily designed by adjusting the compensation parameters. The sample bode plot is shown below to
explain the phase margin, gain margin, and the crossover frequency.
The gain is drawn as 20 log (loop-gain), and the phase is in degrees. To explain them clearer, 180 degrees is
added to the phase, so that the gain and phase share the same zero.
The crossover frequency is the point at which the gain curve touches zero. The higher this frequency, the faster
the transient response, since the transient recovery time is 1/(crossover frequency). The phase is the phase
margin. The phase margin should be at least 60 degrees to cover all changes such as temperature. The gain
margin is the gap between the gain curve and the zero when the phase curve touches zero. This margin should
be at least 20 dB to guarantee stability over all conditions.
Powered by ICminer.com Electronic-Library Service CopyRight 2003
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPS5210DWR | Voltage-Mode SMPS Controller |
| TPS5210PWPR | Voltage-Mode SMPS Controller |
| TPS5211PWPR | Analog IC |
| TPS524 | PHOTOVOLTAIC CELL FOR THERMOPILE DETECTION |
| TPS5300DAP | Analog IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS5103IDBRG4 | 功能描述:DC/DC 開關(guān)控制器 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 安裝風格: 封裝 / 箱體:CPAK |
| TPS5110 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-A SINK/ SOURCE DDR TERMINATION REGULATOR |
| TPS51100 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-A SINK/SOURCE DDR TERMINATION REGULATOR |
| TPS51100_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-A SINK/SOURCE DDR TERMINATION REGULATOR |
| TPS51100DGQ | 功能描述:低壓差穩(wěn)壓器 - LDO 3A Source/Sink DDR Terminator Regulator RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
發(fā)布緊急采購，3分鐘左右您將得到回復。