QPI_Family Sheet:QPI Series

Active EMI Input Filters (QPI Series)
For 24/28 V and 48/60 V BUS applications
Features
Up to 60 dB CM attenuation at 250 kHz
25 mm
Up to 80 dB DM attenuation at 250 kHz
4.5 mm
Efficiency: >99% at full load
High density, low profile LGA package
QPI
25 mm
Integrated Hot-Swap in select models
US AND FORIEGN PATENTS PENDING
-40° to +100°C PCB temperature
•082
PHIL
0325A
TÜV approved
Saves up to 50% board space vs. standard filters
QUIETPOWER™
Compatible with most DC-DC converters
Product Description
Applications
The QPI family of active EMI filters provides conducted
common-mode (CM) and differential-mode (DM) attenuation
from 150 kHz to 30 MHz (CISPR22 range). The proprietary
active filtering circuit provides superior attenuation at
low frequencies intended to support EN Class B limits,
including PICMG ® 3.0 for ATCA boards.
PICMG® 3.0 ATCA applications
Networking and communications
Fan tray assemblies
Telecom
Industrial
Military
In comparison to passive solutions, the use of active filtering reduces
the volume of the common-mode choke, providing a low profile,
surface mount device. Smaller size saves valuable board real estate
and the reduced height enhances airflow in blade applications.
QPI Evaluation Boards
Available
For more information,
go to picorpower.com
Part Numbering
Part Number
(Z = RoHS)
Input
Voltage
Nominal
Range
Current
Rating
CM Attenuation
@250 kHz
DM Attenuation
@250 kHz
Hipot
Integrated
Hot-Swap
Package
QPI-3L ( Z)
24/28 Vdc
10 – 40 Vdc
7A
60 dB
80 dB
707 Vdc
—
full
QPI-4L ( Z)
48/60 Vdc
30 – 80 Vdc
7A
40 dB
70 dB
1,500 Vdc
—
full
QPI-5L ( Z)
24/28 Vdc
10 – 40 Vdc
14 A
60 dB
80 dB
707 Vdc
—
full
QPI-6L ( Z)
48/60 Vdc
30 – 80 Vdc
14 A
40 dB
80 dB
1,500 Vdc
—
full
QPI-7L ( Z)
24/28 Vdc
18 – 38 Vdc
6A
50 dB
80 dB
707 Vdc
Yes
full
QPI-8L ( Z)
48/60 Vdc
32 – 76 Vdc
6A
40 dB
70 dB
1,500 Vdc
Yes
full
PWRGD
PowerGood
OV
UVEN
QPI-7,8
QPI-8
BUS+
BUS+
QPI+
Class B limit
Active
EMI Filter
Hot-Swap Function
SW
SHIELD
BUS-
QPI+
QPI-
QPI-
SW
SHIELD
Block diagram, QPI with integrated Hot-Swap
Conducted EMI scans showing QPI performance.
Blue trace = no QPI; Red trace = with QPI.
Defining the Quality of Power Through Innovation
picorpower.com
800-735-6200
Rev 2.0 6/07 33282
V•I Chip Input EMI Filters (QPI Series)
Optimized for V•I Chip applications
Features
25 mm
4.5 mm
24/28 V and 48/60 V models
Up to 65 dB CM attenuation at 1 MHz
Up to 80 dB DM attenuation at 1 MHz
QPI-10L
Full Size
25 mm
US AND FORIEGN PATENTS PENDING
Efficiency >99%
•079
PHIL
0650A
Low profile LGA package
Integrated Hot-Swap in select models
Supports PICMG® 3.0 ATCA applications
QPI-12L
Half Size
12.5 mm
US AND FORIEGN PATENTS PENDING
-40° to +100°C PCB temperature
•087
TÜV approved
PHIL
0550A
QUIETPOWER™
Product Description
Applications
These QPI filters, optimized for V•I Chips, are specifically designed to
attenuate conducted common-mode (CM) and differential-mode
(DM) noise of Vicor’s V•I Chip products to comply with the
CISPR22 standard requirements for conducted noise measurements.
PICMG® 3.0 ATCA applications
Networking and communications
Fan tray assemblies
Designed for the telecom, industrial and military bus ranges,
the V•I Chip EMI filter supports filtering system boards to the
EN55022 Class B limits.
Telecom
Industrial
Military
QPI Evaluation Boards
Available
For more information,
go to picorpower.com
Part Numbering
Part Number
(Z = RoHS)
Input
Voltage
Nominal
Range
Current
Rating
CM Attenuation
@1 MHz
DM Attenuation
@1 MHz
QPI-9L ( Z)
24/28 Vdc
18 – 38 Vdc
6A
65 dB
QPI-10L ( Z)
48/60 Vdc
32 – 76 Vdc
6A
45 dB
QPI-11L ( Z)
24/28 Vdc
5 – 50 Vdc
7A
QPI-12L ( Z)
48/60 Vdc
10 – 80 Vdc
7A
QPI-12 attenuation curves
Hipot
Integrated
Hot-Swap
Package
80 dB
707 Vdc
Yes
full
70 dB
1,500 Vdc
Yes
full
65 dB
80 dB
707 Vdc
—
half
45 dB
70 dB
1,500 Vdc
—
half
Total conducted noise of P048K048T24IF & V048K120T025
with QPI-12.
Defining the Quality of Power Through Innovation
picorpower.com
800-735-6200
Rev 2.0 6/07 33282