- 您現在的位置：買賣IC網 > PDF目錄98281 > TPS40200MDREPG4 (TEXAS INSTRUMENTS INC) SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8 PDF資料下載
參數資料
| 型號： | TPS40200MDREPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | GREEN, PLASTIC, MS-012AA, SOIC-8 |
| 文件頁數： | 4/43頁 |
| 文件大小： | 1069K |
| 代理商： | TPS40200MDREPG4 |
第1頁第2頁第3頁當前第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
www.ti.com
2
8
5
+
S Q
Q
R
Latched
Fault
150mV
V
IN
SS
GND
+
Fault
TPS40200
100mV
Reset
Fault
7
ISNS
Enable
EAMP
+ 300mV
EAMP
SSRef
V
S-S
100kW
300
kW
2
F
2
F
1
F
ILIM
OC
R
V
=
I
+
(3)
SW
IN
O
f
V
C
f2
f1
R
f2
f1
R
+
÷
(4)
SGLS371 – JANUARY 2007
GENERAL INFORMATION (continued)
Figure 26. Current-Limit Reset
If necessary, a small R-C filter can be added to the current-sensing network to reduce nuisance tripping due to
noise pickup. This filter also can be used to trim the overcurrent trip point to a higher level with the addition of a
single resistor. See Figure 27. The nominal overcurrent trip point using the circuit of Figure 27 is described as:
Where:
I
OC = Overcurrent trip point, peak current in the inductor
V
ILIM = Overcurrent threshold voltage for the TPS40200, typically 100 mV
R
ILIM = Value of the current sense resistor (in )
R
F1 and RF2 = Values of the scaling resistors (in )
The value of the capacitor is determined by the nominal pulse width of the converter and the values of the
scaling resistors RF1 and RF2. It is best not to have the time constant of the filter longer than the nominal pulse
width of the converter, otherwise a substantial increase in the overcurrent trip point occurs. Using this constraint,
the capacitor value may be bounded by: .
Where:
Cf = Value of the current-limit filter capacitor (in F)
VO = Output voltage of the converter
VIN = Input voltage to the converter
fSW = Converter switching frequency
Rf1 and Rf2 = Values of the scaling resistors (in )
12
相關PDF資料 |
PDF描述 |
|---|---|
| TPS40211DRCTG4 | SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO10 |
| 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 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPS40200-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:WIDE-INPUT-RANGE NONSYNCHRONOUS VOLTAGE-MODE CONTROLLER |
| TPS40200QDRQ1 | 功能描述:DC/DC 開關控制器 Wide-Inp-Rng Nonsync Vltg-Mode 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 |
| TPS40200SHKJ | 功能描述:DC/DC 開關控制器 Wide Inp Non-Sync Buck DC/DC 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 |
| TPS40200SHKQ | 功能描述:DC/DC 開關控制器 Hi Temp Non-Sync Buck DC/DC Cntlr 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 |
| TPS40200SKGD1 | 功能描述:DC/DC 開關控制器 Wide Input Non-Synch 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。