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參數(shù)資料
| 型號(hào)： | L6714TR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 4 phase controller with embedded drivers for Intel VR10, VR11 and AMD 6Bit CPUs |
| 中文描述： | 4英特爾VR10，VR11和AMD的6位嵌入式CPU的司機(jī)相控制器 |
| 文件頁數(shù)： | 38/70頁 |
| 文件大?。?/td> | 572K |
| 代理商： | L6714TR |
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Voltage positioning
L6714
38/70
12.2
Offset (Optional)
The OFFSET pin allows programming a positive offset (V
OS
) for the output voltage by
connecting a resistor R
OFFSET
vs. SGND; this offset has to be considered in addition to the
one already introduced during the production stage for the Intel VR10,VR11 Mode.
The OFFSET pin is internally fixed at 1.240V (
See Table 4
) a current is programmed by
connecting the resistor R
OFFSET
between the pin and SGND: this current is mirrored and
then properly sunk from the FB pin as shown in
Figure 12
. Output voltage is then
programmed as follow:
Offset resistor can be designed by considering the following relationship (R
FB
is fixed by the
Droop effect):
Offset automatically given by the DAC selection differs from the offset implemented through
the OFFSET pin: the built-in feature is trimmed in production and assures ±0.5% error
(±0.6% for the AMD DAC) over load and line variations.
Figure 12. Voltage positioning with offset
V
OUT
V
REF
R
FB
I
DROOP
I
OFFSET
–
(
)
–
=
R
OFFSET
V
OS
------------------
R
FB
=
1.240V
R
OFFSET
OFFSET
V
REF
FB
COMP
VSEN
64k
FBR
FBG
6
64k
6
R
F
C
F
R
FB
To Vcore
(Remote Sense)
I
D
I
O
I
O
DROOP
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