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QPI-12 Datasheet, PDF (1/4 Pages) Vicor Corporation – 7 A V·I Chip EMI Filter | |||
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7 A V·I Chip EMI Filter
QPI-12
QUIETPOWER®
Description
The QPI-12 EMI filter is specifically designed to
attenuate conducted common-mode (CM) and
differential-mode (DM) noise of Vicorâs Vâ¢I Chip
products to comply with the CISPR22 standard
requirements for conducted noise measurements. The
filter is designed to operate up to 80 Vdc and supports
7 A loads up to 60°C without derating.
Designed for the telecom bus range, the Vâ¢I Chip EMI
Filter supports the PICMG® 3.0 specification for
filtering system boards to the EN55022 Class B limits.
Features
⢠> 40 dB CM attenuation at 1 MHz
⢠> 60 dB DM attenuation at 1 MHz
⢠80 Vdc (max input)
⢠100 Vdc surge 100 ms
⢠1,500 Vdc hipot hold off to shield plane
⢠7 A rating
⢠12.4 x 25 x 4.5 mm SiP (System-in-Package)
⢠Low profile LGA package
⢠-40° to +100°C PCB temperature (see Figure 6)
⢠Efficiency >99%
⢠TÃV Certified
Applications
⢠Telecom and ATCA boards
⢠Vâ¢I Chip input power filter
Figure 1 â QPI-12, less than 1/2 in2.
Cy1
Bus+
Cbus
Busâ
Shield
Bus+ Out+
QPI-12
Busâ Outâ
Shield
Vi+ Vo+
Cin PRM
Viâ Voâ
Vi+ Vo+
VTM
Viâ Voâ
Cy2
Cin: Recommended input capacitance per Vicor requirement.
Cy1 & Cy2: 4.7 nF, or recommended per Vicor requirement.
Cbus: 47 uF, 50 V electrolytic in parallel with 2.2 µF, 100 V ceramic.
Figure 2 â QPI-12 Typical application schematic
Figure 3 â QPI-12 network analyzer attenuation curves
Picor Corporation ⢠www.picorpower.com
QPI-12 Data Sheet Rev. 1.8 Page 1 of 4
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