- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98000 > LM25066APSQE (NATIONAL SEMICONDUCTOR CORP) POWER SUPPLY SUPPORT CKT, QCC24 PDF資料下載
參數(shù)資料
| 型號： | LM25066APSQE |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, QCC24 |
| 封裝： | LLP-24 |
| 文件頁數(shù)： | 36/48頁 |
| 文件大?。?/td> | 1658K |
| 代理商： | LM25066APSQE |
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頁當(dāng)前第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁
Reading Input and Output Voltage
Coefficients for VIN and VOUT are fixed and are consistent
between read telemetry measurements (e.g., READ_VIN,
READ_AVG_VIN)
and
warning
thresholds
(e.g.,
VIN_UV_WARN_LIMIT). Input and output voltage values are
read/written in Direct format with 12-bit resolution and a 4.54
mV LSB. An example of calculating the PMBus coefficients
for input voltage is shown below.
Step
Example
1. Determine m' based on full scale analog input and full scale
digital range:
2. Determine exponent R necessary to set m' to integer value m
with desired accuracy:
Select R to provide 5 digit accuracy for the integer value of m
(which would be 21703 in this example:
R = -2
3. Final values
m = 22026
R = -2
b =0
Reading Power
The power calculation of the LM25066A is a relative power
calculation meaning that full scale of the power register cor-
responds to simultaneous full scale values in the current
register and voltage register such that the power register has
the following relationship based on decimal equivalents of the
register contents:
For this reason power coefficients will also vary depending on
the shunt value and must be calculated for each application.
The power LSB will vary depending on shunt value according
to 276 W/Rsense for 46mV range or 138.2 W/Rsense for
25mV range.
Step
Example
1. Determine full scale power from known full scale of input
current and input voltage
P
IN_MAX = VIN_MAX x IIN_MAX
Example: 125A application with 250
shunt.
P
IN_MAX = (18.59V) x (120.8A) = 2246W
2. Determine m':
3. Optional: Determine exponent R necessary to set m' to integer
value m with desired accuracy:
Select R (in this case selected to provide 4 digit accuracy for the
integer value of m):
R = -3
4. Final values
m = 1823
R = -3
b = 0
41
www.national.com
LM25066A
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2575T-012G | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, SFM5 |
| LM2577K-12/883 | 6 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, MBFM2 |
| LM2577KADJ/883 | 6 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, MBCY4 |
| LM2577K-15/883 | 6 A SWITCHING REGULATOR, 62 kHz SWITCHING FREQ-MAX, MBFM2 |
| LM2633MTDX/NOPB | SWITCHING CONTROLLER, 275 kHz SWITCHING FREQ-MAX, PDSO48 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM25066APSQE/NOPB | 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| LM25066APSQX | 制造商:TI 制造商全稱:Texas Instruments 功能描述:System Power Management and Protection IC with PMBusa?￠ |
| LM25066APSQX/NOPB | 功能描述:熱插拔功率分布 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Controllers & Switches 電流限制: 電源電壓-最大:7 V 電源電壓-最小:- 0.3 V 工作溫度范圍: 功率耗散: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MSOP-8 封裝:Tube |
| LM25066EVK/NOPB | 功能描述:電源管理IC開發(fā)工具 LM25066 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)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 |
| LM25066IAPSQ/NOPB | 制造商:Texas Instruments 功能描述:IC PWR MGMT/PROT PMBUS 24WQFN 制造商:Texas Instruments 功能描述:System PWR Mgmt & Protection IC |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。