l6706 STMicroelectronics, l6706 Datasheet - Page 19

• Manufacturer Part Number: l6706
• Description: Vr11.1 Single Phase Controller With Integrated Driver
• Manufacturer: STMicroelectronics

L6706
7
Differential remote voltage sensing
The output voltage is sensed in fully-differential mode between the FB and FBG pin.
The FB pin has to be connected through a resistor to the regulation point while the FBG pin
has to be connected directly to the remote sense ground point.
In this way, the output voltage programmed is regulated between the remote sense point
compensating motherboard or connector losses.
Keeping the FB and FBG traces parallel and guarded by a power plane results in common
mode coupling for any picked-up noise.
Figure 5.
GND DROP
RECOVERY
V
To GND_core
(Remote Sense)
PROG
Differential remote voltage sensing connections
FBG
FBG
To VCC_core
(Remote Sense)
Doc ID 15698 Rev 1
VSEN
I
OFFSET
R
FB
Differential remote voltage sensing
I
DROOP
FB
R
V
F
REF
C
P
ERROR AMPLIFIER
COMP
C
F
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