參數(shù)資料
型號: FA3647P
廠商: FUJI ELECTRIC CO LTD
元件分類: 穩(wěn)壓器
英文描述: PWM control IC with light load power saving function For Switching Power Supply Control
中文描述: 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP8
封裝: DIP-8
文件頁數(shù): 19/21頁
文件大小: 406K
代理商: FA3647P
FA3641P(N), FA3647P(N)
76
Fig. 36 Gate circuit
When gate resistance differs between ON and OFF as shown
in Figure 36, the loss is given by:
(
... (17)
Example:
When Vcc = 18V, Qg = 80nC, fsw = 100kHz, and Rg = 10
, the
typical IC loss is given by:
Pdr = 1
18V
80nC
100kHz
2
(3) Total loss
The total loss (Pd) of the IC is the sum of the control circuit loss
(Pop) and the output circuit loss (Pdr) calculated previously:
Pd = Pop + Pdr .............................................................. (18)
Example:
The standard IC loss under the conditions used in (1) and (2)
above are:
Pd = Pop + Pdr = 34.2mW + 72.8mW = 107mW
Pdr = 1
Vcc Qg fsw
Ron
Roff
Rg1 Rg2 Ron
2
Rg1 Roff
)
15
10
15
(
7
10
7
=72.8mW
)
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FA-365 16.0000MB-G3 功能描述:CRYSTAL 16.0000MHZ 20PF SMD RoHS:是 類別:晶體和振蕩器 >> 晶體 系列:FA-365 標(biāo)準(zhǔn)包裝:1 系列:ABLS2 類型:MHz 晶體 頻率:3.579545MHz 頻率穩(wěn)定性:±30ppm 頻率公差:±30ppm 負(fù)載電容:18pF ESR(等效串聯(lián)電阻):180 歐姆 工作模式:基諧 工作溫度:-40°C ~ 85°C 額定值:- 安裝類型:表面貼裝 封裝/外殼:HC49/US 尺寸/尺寸:0.449" L x 0.185" W(11.40mm x 4.70mm) 高度:0.130"(3.30mm) 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:1683 (CN2011-ZH PDF) 其它名稱:535-9855-1