欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數資料
型號: TPS40077PWPR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩壓器
英文描述: 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封裝: GREEN, PLASTIC, HTSSOP-16
文件頁數: 18/43頁
文件大小: 847K
代理商: TPS40077PWPR
f Frequency Hz
0
5
10
15
20
25
30
35
40
45
50
Gain
dB
Phase
°
Gain
Phase
100
1k
10k
1M
100k
200
180
160
140
120
100
80
40
0
G027
20
60
Component Selection
LOUT +
V
OUT
V
IN(max)
V
IN(max) * VOUT
fs
I
RIPPLE
(18)
I
LOUT_RMS +
I
OUT
2
)
I
RIPPLE
2
12
+ 10.02 A
(19)
I
PK + IOUT )
I
RIPPLE
2
+ 11.03 A
(20)
www.ti.com ..................................................................................................................................................... SLUS714D – JANUARY 2007 – REVISED APRIL 2009
Figure 30. Bode Plot Showing 57° Phase Margin at Crossover Frequency of 54 kHz
Power Train Components
Output Inductor, LOUT
The output inductor is one of the most important components to select. It stores the energy necessary to keep
the output regulated when the switch FET is turned off. The value of the output inductor dictates the peak and
RMS currents in the converter. These currents are important when selecting other components. Equation (1) can
be used to calculate a value for LOUT for this module which operates at a switching frequency (f) of 300 kHz.
IRIPPLE is the allowable ripple in the inductor. Select IRIPPLE to be between 20% and 30% of maximum IOUT. For
this design, IRIPPLE of 2.5 A was selected. Calculated LOUT is 2.13 H. A standard inductor with value of 2.5 H
was chosen. This will reduce IRIPPLE by about 17% to 2.07 A.
This IRIPPLE value can be used calculate the rms and peak current flowing in LOUT. Note that this peak current is
also seen by the switching FET and synchronous rectifier.
The power loss from the selected inductor DCR is 357 mW. The ac core loss for this Coilcraft inductor may be
found from the Coilcraft Web site, where there is a loss calculator. The loss is 179 mW.
The inductor is selected with a saturation current higher than this current plus the current that is developed
charging the output capacitance during the soft-start interval.
Copyright 2007–2009, Texas Instruments Incorporated
25
Product Folder Link(s) :TPS40077
相關PDF資料
PDF描述
TPS40077PWPRG4 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
TPS40077PWPG4 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
TPS40090QPWRQ1 SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO24
TPS40101RGET 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC24
TPS40131RHBT SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PQCC32
相關代理商/技術參數
參數描述
TPS40077PWPRG4 功能描述:DC/DC 開關控制器 Hi Eff Mid-Range Inp 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
TPS40090 制造商:TI 制造商全稱:Texas Instruments 功能描述:HIGH FREQUENCY MULTIPHASE CONTROLLER
TPS40090EVM-001 功能描述:電源管理IC開發工具 TPS40090-001 Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS40090EVM-002 功能描述:電源管理IC開發工具 TPS40090-002 Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS40090PW 功能描述:DC/DC 開關控制器 4 Ch Multiphase Buck DC/DC Controller 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
主站蜘蛛池模板: 贵港市| 尼木县| 赤壁市| 山阴县| 万年县| 西青区| 内乡县| 邵阳县| 德江县| 星子县| 莱州市| 普洱| 永顺县| 金湖县| 奉节县| 应城市| 乐至县| 黑河市| 贵阳市| 广水市| 华宁县| 吕梁市| 图们市| 临泽县| 疏勒县| 清丰县| 靖边县| 成武县| 雷波县| 江华| 尉犁县| 雅江县| 武穴市| 湖南省| 竹北市| 肃宁县| 秭归县| 铜鼓县| 鄱阳县| 镇平县| 宁城县|