参数资料
型号: L6714TR
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: SWITCHING CONTROLLER, 170 kHz SWITCHING FREQ-MAX, PQFP64
封装: 10 X 10 MM, LEAD FREE, TQFP-64
文件页数: 28/70页
文件大小: 694K
代理商: L6714TR
Current reading and current sharing loop
L6714
34/70
Figure 9.
Current reading connections.
Considering now to match the time constant between the inductor and the R-C filter applied
(Time constant mismatches cause the introduction of poles into the current reading network
causing instability. In addition, it is also important for the load transient response and to let
the system show resistive equivalent output impedance), it results:
Where IINFOx is the current information reproduced internally.
CSx-
CSx+
LGATEx
I
PHASEx
Lx
CSx+
CSx-
PHASEx
RLx
R
C
Rg
I
PHASEx
LS Mosfet RdsON Current Sense
Inductor DCR Current Sense
ICSx-
25
A
ICSx-=IINFOx
NO Bias
L
R
L
-------
RC
I
CSx-
R
L
Rg
--------
I
PHASEx
=
I
INFOx
I
INFOX
R
L
Rg
--------
I
PHASEx
=
==
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