參數(shù)資料
型號: L6714TR
廠商: STMICROELECTRONICS
元件分類: 穩(wěn)壓器
英文描述: SWITCHING CONTROLLER, 170 kHz SWITCHING FREQ-MAX, PQFP64
封裝: 10 X 10 MM, LEAD FREE, TQFP-64
文件頁數(shù): 32/70頁
文件大?。?/td> 694K
代理商: L6714TR
Voltage positioning
L6714
38/70
12.2
Offset (Optional)
The OFFSET pin allows programming a positive offset (VOS) for the output voltage by
connecting a resistor ROFFSET 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 ROFFSET 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 (RFB 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
1.240V
V
OS
-------------------
R
FB
=
1.240V
ROFFSET
OFFSET
VREF
FB
COMP
VSEN
64k
FBR
FBG
64k
RF
CF
RFB
To Vcore
(Remote Sense)
I DR
OOP
I OFFSET
DROOP
相關PDF資料
PDF描述
L6714 SWITCHING CONTROLLER, 170 kHz SWITCHING FREQ-MAX, PQFP64
L6725TR 20 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16
L6728ATR SWITCHING CONTROLLER, 660 kHz SWITCHING FREQ-MAX, PDSO10
L6728A SWITCHING CONTROLLER, 660 kHz SWITCHING FREQ-MAX, PDSO10
L6728D 30 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, PDSO10
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