ADP1046-100-EVALZ AD [Analog Devices], ADP1046-100-EVALZ Datasheet - Page 36
ADP1046-100-EVALZ
Manufacturer Part Number
ADP1046-100-EVALZ
Description
Digital Controller for Isolated
Manufacturer
AD [Analog Devices]
Datasheet
1.ADP1046-100-EVALZ.pdf
(96 pages)
- Current page: 36 of 96
- Download datasheet (3Mb)
ADP1046
LAYOUT GUIDELINES
This section explains best practices that should be followed
to ensure optimal performance of the ADP1046. In general,
all components should be placed as close to the
possible. All signals should be referenced to their respective
grounds.
CS2+ AND CS2−
The routing of the traces from the sense resistor to the
should be laid out in parallel to each other. The traces should
also be kept close together and as far from the switch nodes as
possible.
VS3+ AND VS3−
The routing of the traces from the remote voltage sense point
to the
The traces should also be kept close together and as far from
the switch nodes as possible. Place a 100 nF capacitor from VS3−
to AGND to reduce common-mode noise.
VDD
Place decoupling capacitors as close to the part as possible.
A 4.7 μF capacitor from VDD to AGND is recommended.
SDA AND SCL
The routing of the traces should be laid out in parallel to each
other. The traces should also be kept close together and as far
from the switch nodes as possible.
ADP1046
should be laid out in parallel to each other.
ADP1046
ADP1046
as
Rev. 0 | Page 36 of 96
CS1
Run the traces from the current sense transformer to the
ADP1046
kept close together and as far from the switch nodes as possible.
EXPOSED PAD
The exposed pad underneath the
to the PCB AGND plane.
VCORE
Place a 330 nF decoupling capacitor from this pin to DGND as
close to the part as possible.
RES
Place a 10 kΩ, ±0.1% resistor from this pin to AGND as close to
the part as possible.
RTD
Route a single trace to the
a dedicated trace to AGND. Place the thermistor close to the
hottest part of the power supply.
AGND, DGND, AND PGND
Create an AGND ground plane and make a single-point (star)
connection to the power supply system ground. Connect DGND
to AGND with a very short trace using a star connection.
Connect PGND to AGND using a star connection.
in parallel to each other. The traces should also be
ADP1046
ADP1046
from the thermistor using
should be soldered
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