參數(shù)資料
型號(hào)： IR3651SPBF
廠商： International Rectifier
英文描述： HIGH VOLTAGE SYNCHRONOUS PWM BUCK CONTROLLER
中文描述： 高壓同步PWM降壓控制器
文件頁(yè)數(shù)： 12/19頁(yè)
文件大?。?/td> 397K
代理商： IR3651SPBF
IR3651SP
b
F
10/11/2006
Application Information
Output Voltage Programming
Output voltage is programmed by reference
voltage and external voltage divider. The Fb pin
is the inverting input of the error amplifier, which
is internally referenced to 1.25V. The divider is
ratioed to provide 1.25V at the Fb pin when the
output is at its desired value. The output voltage
is defined by using the following equation:
When an external resistor divider is connected to
the output as shown in figure 9.
Equation (4) can be rewritten as:
For the calculated values of R
8
and R
9
see
feedback compensation section.
)
4
--(
R
R
1
V
V
9
8
ref
o
+
=
Fig. 9: Typical application of the IR3651 for
programming the output voltage
)
5
--(
V
V
V
R
R
ref
O
ref
8
9
=
Soft-Start Programming
The soft-start timing can be programmed by
selecting the soft-start capacitance value. The
start-up time of the converter can be calculated
by using:
A
20
C
SS
μ
Where T
start
is the desired start-up time (ms)
For a start-up time of 5ms, the soft-start
capacitor will be 0.1uF. Choose a ceramic
capacitor at 0.1uF.
)
1
--(
T
start
*
Fb
IR3651
V
OUT
R
9
R
8
12
相關(guān)PDF資料
PDF描述
IR3651STRPBF HIGH VOLTAGE SYNCHRONOUS PWM BUCK CONTROLLER
IR3811MPBF HIGHLY INTEGRATED 7A WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
IR3820AMPBF HIGHLY INTEGRATED 14A WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
IR3820MPBF HIGHLY INTEGRATED 12A WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
IR3821AMPBF HIGHLY INTEGRATED 9A WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IR3651STRPBF 功能描述:電壓模式 PWM 控制器 High Volt Sych PWM 100V 400Mhz 1.25 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
IR3651STRPBF-CUT TAPE 制造商:IR 功能描述:IR3651SPbF Series 13.2 V 7 mA High Voltage Synchronous PWM Buck Controller
IR367319 制造商:Thomas & Betts 功能描述:CONNECTOR
IR3702 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
IR3702N 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*