參數(shù)資料
型號(hào)： FAN8048
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 運(yùn)動(dòng)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(yè)數(shù)： 16/34頁(yè)
文件大小： 903K
代理商： FAN8048
FAN8048
16
3-7. Operation mode of Step-up/down converter
Figure 9 shows the connection of the four internal output power switches, external Inductor, and input/output voltage, which
are components of the FAN8048 built-in DC-DC converter.
As shown in Figure 10, the DC-DC converter determines a switching operation mode (Buck, Buck-Boost and Boost) according
to the relationship between control voltage VX and VY and oscillator output voltage V
PCT
. Also, the DC-DC converter indi-
cates the different operational statuses of output power switch (Output switches, A, B, C, and D) according to operational
mode. Herein, control voltage VX is the output voltage of error amplifier, and voltage VY is level shift voltage in VX.
Figure 9. Simplified Diagram of Output Swiches
Figure 10. Switching control vs. internal control voltages, V
X
and V
Y
VA
VB
VD
VC
19
USW
VIN
18
22
21
A
B
C
D
DSW
VSYS
Boost Mode
Buck/Boost Mode
Buck Mode
Duty
Switch A ON B OFF
PWM CD Swiches
Four Switches PWM
Switch D ON C OFF
PWM AB Swiches
0%
V
X
> V
PCT
V
X
> V
Y
V
Y
> V
PCT
V
Y
> V
X
V
X
≤
V
PCT
V
Y
≤
V
PCT
D
MAX_BOOST
D
MIN_BOOST
D
MAX_BUCK
75%
相關(guān)PDF資料
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FAN8082D Bi-directional DC Motor Driver
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)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(kāi)關(guān)調(diào)節(jié)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(kāi)關(guān)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(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
FAN8082 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 DC Motor Driver RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
FAN8082D 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 DC Motor Driver Bi Directional RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
FAN8082DTF 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 DC Motor Driver Bi Directional RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube
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