參數(shù)資料
型號(hào)： SC1404ISSTR
廠商： Semtech Corporation
英文描述： Mobile Multi-Output PWM Controller with Virtual Current Sense
中文描述： 移動(dòng)多輸出與虛擬PWM控制器電流檢測(cè)
文件頁(yè)數(shù)： 15/27頁(yè)
文件大?。?/td> 515K
代理商： SC1404ISSTR
15
2003 Semtech Corp.
www.semtech.com
SC1404
POWER MANAGEMENT
Applications Information
Measured overall gain & phase response of the single-pole com-
pensation using SC1404 is plotted below.
Table I. Recommended compensation cap for different output
capacitance.
Table I. is useful only if the following ESR condition is satisfied.
fo > 50KHz
where Resr is the equivalent ESR of the total output caps. For
instance, if two Panasonic SP cap 180uF, 15
equivalent Resr = ESR(single)/2 = 7.5
m
are used. The
m
.
-20
1.00E+02
0
20
40
60
80
100
120
140
160
180
1.00E+03
1.00E+04
1.00E+05
f (Hz)
P
-80
1.00E+02
-45
-10
25
60
1.00E+03
1.00E+04
1.00E+05
f (Hz)
G
The error amplifier compensation is set by the internal output
resistance of the amplifier (25 Kohms typical) and the external
impedance attached to the COMP pin. Connecting a single ca-
pacitor to the COMP pin places a R-C pole into the error amplifier.
O
ESR
O
C
R
2
1
f
=
Output Cap
Recommended Compensation
Cap Value
<= 180uF
100pF
>1000uF
330pF
>180uF &
< 1000uF
200pF
相關(guān)PDF資料
PDF描述
SC1404ITSTR Mobile Multi-Output PWM Controller with Virtual Current Sense
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SC1405BTS.TR High Speed Synchronous Power MOSFET Smart Driver
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC1404ITSTR 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:Mobile Multi-Output PWM Controller with Virtual Current SenseTM
SC1405 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:HIGH SPEED SYNCHRONOUS POWER MOSFET SMART DRIVER
SC1405B 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:HIGH SPEED SYNCHRONOUS POWER MOSFET SMART DRIVER
SC1405BTS.TR 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:High Speed Synchronous Power MOSFET Smart Driver
SC1405CTS.TR 制造商:Semtech Corporation 功能描述:
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