QPI-3LZ Vicor

Not Recommended for New Designs QPI Filters QPI-3LZ S CUNRTL S 7A Active EMI Filter SiP for 24V Bus DC Product Description Features & Benefits 65dB CM attenuation at 250kHz (50) The QPI-3 active EMI filter attenuates conducted common-mode (CM) and differential-mode (DM) noise over the CISPR22 frequency 80dB DM attenuation at 250kHz (50) range of 150kHz to 30MHz. The product is designed for use on 24V bus (10 40V ) systems, with 100V surge capability. The 40V (max input) DC DC DC DC QPI-3s 7A rating supports multiple DC-DC converter loads up to 100V surge 100ms DC an ambient temperature of 110C without de-rating. Designed for the telecom and ITE bus range, the QPI-3 supports the PICMG 707V hipot hold off to shield plane DC 3.0 specification for filtering system boards to the EN55022 7A rating Class B limits. Low-profile LGA package In comparison to passive solutions, the use of active filtering reduces the volume of the common-mode choke, providing a 2 ~1in area low profile, surface-mount device. Smaller size saves valuable 40 to +125C ambient temperature (see Figure 9) board real estate and the reduced height enhances airflow in blade applications. Efficiency >99% The QPI-3 is available as a lidded or an open-frame SiP Connect in series for higher attenuation (System-in-Package) with LGA mounting. Evaluation boards are available to allow for quick in-circuit testing of the QPI-3LZ within TV certified an existing system design. Applications Industrial Bus Supplies Telecom Base Stations IBA & Distributed Power COTS Systems Package Information 25.3 x 25.3 x 5.2mm lidded SiP (System-in-Package) 24.9 x 24.9 x 4.4mm open-frame SiP Typical Application BUS+ QPI+ IN+ OUT+ BUS+ SENSE+ CB1 CIN PC QPI-3 SC LOAD PR BUS BUS QPI SENSE Shield OUT IN CY1 CY2 CY3 CY4 Chassis/Shield Shield Plane RY a QPI-3 schematic with a Vicor Brick converter. a CB1 capacitor, referenced in all schematics, is a 47F electrolytic United Chemi-Con EMVE101ARA470MKE0S or equivalent. CY1 to CY4, referenced in all schematics, are 4.7nF high-voltage safety capacitors Vishay VY1472M63Y5UQ63V0 or equivalent. CIN is the manufacturers recommended value for input capacitor. QPI Filters Rev 2.9 Page 1 of 15 03/2020QPI-3LZ Not Recommended for New Designs Contents Order Information 3 Absolute Maximum Ratings 3 Electrical Characteristics 3 Package Pinout 4 Applications Information 5 EMI Sources 5 Passive EMI Filtering 5 Active EMI Filtering 5 EMI Management 6 Attenuation Test Set Ups 7 Attenuation Plots 8 Current De-Rating 8 QPI Application Circuits 9 QPI Insertion Loss Measurements and Test Circuits 11 Package Outline Drawings 12 Pad and Stencil Definitions 13 PCB Layout Recommendations 14 PCB Layout 14 Post-Solder Cleaning 14 QPI-3 Mechanical Data 14 Product Warranty 15 QPI Filters Rev 2.9 Page 2 of 15 03/2020