參數(shù)資料
型號: EL7640
廠商: Intersil Corporation
英文描述: TFT-LCD DC/DC with Integrated Amplifiers
中文描述: 的TFT - LCD的DC / DC集成放大器
文件頁數(shù): 11/19頁
文件大小: 493K
代理商: EL7640
11
FN7415.1
September 26, 2005
The current through MOSFET is limited to 3A peak. This
restricts the maximum output current based on the following
equation:
I
L
2
O
Where
IL is peak to peak inductor ripple current, and is set
by:
where f
S
is the switching frequency.
FIGURE 18. THE BLOCK DIAGRAM OF THE BOOST CONTROLLER
I
OMAX
I
LMT
--------
V
---------
×
=
I
L
V
---------
D
f
S
----
×
=
I
REF
I
REF
FBB
I
FB
I
FB
COMP
VOLTAGE
AMPLIFIER
LX
PGND
SHUTDOWN
& STARTUP
CONTROL
GM
AMPLIFIER
SLOPE
COMPENSATION
BUFFER
PWM
LOGIC
CURRENT
AMPLIFIER
CLOCK
REFERENCE
GENERATOR
EL7640, EL7641, EL7642
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EL7640_06 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:TFT-LCD DC/DC with Integrated Amplifiers
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