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參數資料
型號: FAN8048
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 運動控制電子
英文描述: 2 DC-DC Converter & 4-CH PWM Motor IC
中文描述: DISK DRIVE MOTOR CONTROLLER, 0.5 A, PDSO48
封裝: 7 X 7 MM, LQFP-48
文件頁數: 23/34頁
文件大小: 903K
代理商: FAN8048
FAN8048
23
3.10.1 Effect of Parasitic Elements in Step-up Converter
In a practical synchronous step-up converter, the parasitic elements are due to the loss associated with the inductor, the capaci-
tor and the switches; however. Figure 17 qualitatively show the effect of these parasitics on the voltage transfer ratio. Unlike
the ideal characteristic, in paractice VSYS/VIN declines as the duty ratio approaches unity. Because of very poor switch utili-
zation at high values of duty ratio, the curves in this range are show as dotted.
Figure 17. Effect of parasitic elements on voltage conversion ratio
D
0
IN
SYS
V
V
1
Ideal
D
1
1
Due to parasitic
elements
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相關代理商/技術參數
參數描述
FAN8060 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:1.2MHz, 1A Synchronous Step-Down DC/DC Regulator
FAN8060EMPX 功能描述:直流/直流開關調節器 1.2MHz, 1A Sync Step Down DC/DC RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
FAN8082 功能描述:馬達/運動/點火控制器和驅動器 DC Motor Driver RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
FAN8082D 功能描述:馬達/運動/點火控制器和驅動器 DC Motor Driver Bi Directional RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
FAN8082DTF 功能描述:馬達/運動/點火控制器和驅動器 DC Motor Driver Bi Directional RoHS:否 制造商:STMicroelectronics 產品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
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