參數(shù)資料
型號: LX1673-09CPW
英文描述: PWM Controllers
中文描述: PWM控制器
文件頁數(shù): 13/21頁
文件大?。?/td> 554K
代理商: LX1673-09CPW
Microsemi
Integrated Products, Power Management
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 13
Copyright
2000
Rev. 0.5i, 2002-07-17
W
M
.
C
LX1671
Multiple Output LoadSHARE PWM
P
RELIMINARY
I N T E G R A T E D P R O D U C T S
THEORY OF OPERATION
(CONTINUED)
L1,
Switch
Side
L2,
Switch
Side
100
Not
Used
62k
4700pF
+
-
62k
4700pF
62k
TBD
100
Offset
Voltage
Generator
-
+
ESR L1
10m
ESR L2
10m
Vout
1.5V @ 12A
18W
Resistor
Divider
Resistor
Divider
Phase 2
Error Amp
Phase 1
Phase 2
V1
V2
1.5V
+73.3mV
1.5V
+46.7mV
7.33A
4.67A
+5V @ 7W
+3.3V @ 11W
LPF1
LPF2
FB2
RF2
PWM
Input
Figure 8 –
LoadSHARE Using Feedback Divider Offset
Where V1 = 1.5467 ; V2 = 1.5733 and
2
V
1
V
K
=
then
K
5.814
K
1
100
K
TBD
=
×
=
A
P
P
L
I
C
A
T
I
O
N
S
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