- 您現在的位置：買賣IC網 > PDF目錄98281 > TPS40101RGET (TEXAS INSTRUMENTS INC) 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC24 PDF資料下載
參數資料
| 型號： | TPS40101RGET |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC24 |
| 封裝： | PLASTIC, QFN-24 |
| 文件頁數： | 13/37頁 |
| 文件大小： | 774K |
| 代理商： | TPS40101RGET |
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頁當前第13頁第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
www.ti.com
R
F1 +
L
R
LDC(Tbase)
C
FLT
a
(W)
(13)
R
LDC(T1) + RLDC(Tbase)
R
REL(effT1)
(W)
(14)
R
LDC(T2) + RLDC(Tbase)
R
REL(effT2)
(W)
(15)
R
THE(T1) +
a
R
LDC(Tbase)
R
F1
R
LDC(T1) * a
R
LDC(Tbase)
(W)
(16)
R
THE(T2) +
a
R
LDC(Tbase)
R
F1
R
LDC(T2) * a
R
LDC(Tbase)
(W)
(17)
a
+ 1 *
R
NTC(T1) * RNTC(T2)
R
THE(T1) * RTHE(T2)
(dimensionless)
(18)
b
+ RNTC(T1) ) RNTC(T2) (W)
(19)
c
+ RNTC(T1)
R
NTC(T2) (W
2)
(20)
R
F3 +
* b " b2 * 4ac
2a
(W)
(21)
R
F2 +
R
THE(T1)
R
F3 ) RNTC(T1) * RF3
R
NTC(T1)
R
F3 ) RNTC(T1)
(W)
(22)
Setting the Current Sense Amplifier Gain
R
GM +
3
43.443
gm
CSA
2 ) 0.01543 gm
CSA ) 3.225
10*6
(W)
(23)
SLUS726 – SEPTEMBER 2006
APPLICATION INFORMATION (continued)
where
L is the value of the output inductance (H)
C
FLT is the value of the current sense filter capacitor (F)
α is the attenuation ratio chosen from Equation 11
R
THE(T1), RTHE(T2) are the equivalent resistances of the RTHE network at temperatures T1 and T2
R
LDC(Tbase) is the DC resistance of the inductor at temperature TBASE in
R
LDC(T1), RLDC(T2) are the inductor resistances at temperatures T1 and T2
R
REL(effT1), RREL(effT2), are the relative resistances of the inductor at T1 and T2 vs. Tbase
R
NCT(T1), RNTC(T2) are the effective resistance of the NTC thermistor at temperatures T1 and T2
The amplifier is a transconductance type and its gain is a set by connecting a resistor from the GM pin to GND:
where
R
GM is the resistor that sets the gain of the amplifier ()
gm
CSA is the gain of the current sense amplifier (S)
The value of the sense amplifier gain should be less than 1000
S, and more than 250 S, with the resulting
gain setting resistor greater than 50 k
. As a suggested starting point, set the gain of the current sense amplifier
to a nominal 400
S with R
GM of 182 k. This value should accommodate most applications adequately.
Figure 27 shows the current sense amplifier gain setting resistance vs. the sense amplifier gain.
20
相關PDF資料 |
PDF描述 |
|---|---|
| TPS40131RHBT | SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC32 |
| TPS40131RHBTG4 | SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC32 |
| TPS40131RHBR | SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC32 |
| TPS40132RHBR | 40 A SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC32 |
| TPS40197RGYR | SWITCHING CONTROLLER, 520 kHz SWITCHING FREQ-MAX, PQCC16 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS40101RGETG4 | 功能描述:DC/DC 開關控制器 Mid Range Input Synch Buck Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| TPS40-11 | 制造商:TOTAL-POWER 制造商全稱:TOTAL-POWER 功能描述:40 WATT OPEN - FRAME SWITCHING POWER SUPPLY |
| TPS40-12 | 制造商:TOTAL-POWER 制造商全稱:TOTAL-POWER 功能描述:40 WATT OPEN - FRAME SWITCHING POWER SUPPLY |
| TPS40120 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:VRM10.0 COMPLIANT PROGRAMMABLE FEEDBACK DIVIDER |
| TPS40120PW | 功能描述:DC/DC 開關控制器 Programable Feedback Divider 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 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
發布緊急采購，3分鐘左右您將得到回復。