QPI-11 ® QUIETPOWER ® 7 A V·I Chip EMI Filter Description Features The QPI-11 EMI filter is specifically designed to attenuate conducted common-mode (CM) and differential-mode (DM) noise of the VICOR V•I Chip products to comply with the CISPR22 standard requirements for conducted noise measurements. The filter is designed to operate up to 36 Vdc and supports 7 A loads up to 60°C without derating. • >50 dB CM attenuation at 1 MHz Designed for the military and industrial bus range, the V•I Chip EMI Filter supports the PICMG® 3.0 specification for filtering system boards to the EN55022 Class B limits. • 12.4 x 25 x 4.5 mm SiP (System-in-a-Package) • >70 dB DM attenuation at 1 MHz • 50 Vdc (max input) • 100 Vdc surge 100 ms • 750 Vdc Hi-pot hold off to shield plane • 7 A rating • Low profile LGA package • -40° to +100°C PCB temperature (see Figure 6) • Efficiency >99% Applications • COTS Military and Industrial • V•I Chip input power filter Figure 1 – QPI-11 actual size. Figure 2 – QPI-11 Typical application schematic Picor Corporation • www.picorpower.com Figure 3 – QPI-11 network analyzer attenuation curves QPI-11 Data Sheet Rev. 1.6 Page 1 of 5 Absolute Maximum Ratings – Exceeding these parameters may result in permanent damage to the product. Pins Parameter Notes Min Max Units Bus+ to Bus– Input voltage Continuous Bus+ to Bus– Input voltage 100 ms transient -50 50 Vdc -100 100 Vdc -750 750 Vdc 7 Adc BUS+ / BUS– to shield plane BUS inputs to shield hipot QPI+ to QPI– Input to output current Package Power dissipation @ 25°C 1.50 W Package Operating temperature PCB to filter interface 100 °C Package Thermal resistance Free air 75 °C/W Package Thermal resistance PCB Layout Fig. 5 30 °C/W Package Storage temperature Package Reflow temperature 20 s exposure All Pins ESD HBM Continuous @ 25°C -55 (1) -2 125 °C 212 °C +2 kV Note 1: RoHS compliant product maximum peak temperature is 245°C for 20 seconds. Electrical Characteristics – Parameter limits apply over the operating PCB temperature range unless otherwise noted Parameter Notes Bus+ to Bus- input range Measured at 7 A Min Typ Max Units 50 Vdc 5 (2) 110 mVdc (2) 110 mVdc Bus+ to Out+ voltage drop Measured at 7 A Bus- to Out- voltage drop Measured at 7 A Common mode attenuation VBUS = 24 V Frequency = 1.0 MHz 50 dB Differential mode attenuation VBUS = 24 V Frequency = 1.0 MHz 70 dB Input bias current at 40 V Input current from Bus+ to Bus- 10 µA Note 2: See Figure 6 for current derating curve. SiP Package Outline Pad Description 0.9843 0.000 0.052 7 6 9 1/2 SIP Package (Bottom View) 5 0.184 8 4 3 2 10 0.4882 1 0.300 Shield 0.184 0.148 0.100 2, 3 Positive bus voltage Negative bus potential Positive input to the converter Negative input to the converter The shield connects to system shield and may connect to the converter created shield plane 0.2000 0.000 Bus + Bus – Out + Out – 0.100 8, 9 1, 10 6, 7 4, 5 0.2000 0.300 Description 0.432 Name 0.432 0.1773 Pin Number Ordering Information Part Number 0.1000 Description 0.1000 QPI-11LZ QPI-11 LGA Package, RoHS Compliant QPI-11 LGA, RoHS Compliant QPI-11LZ-01 Open Frame Package Picor Corporation • www.picorpower.com Pad Detail: 10 Places QPI-11 Data Sheet Rev. 1.6 Page 2 of 5 EMI Performance Figure 4 – Total Noise: PRM (MP028F036M12AL) and VTM (MV036F120M010) with 9.6 A load, no QPI-11. Figure 5 –Total Noise: PRM (MP028F036M12AL) and VTM (MV036F120M010) with 9.6 A load and QPI-11. When laying out the QPI-11L, care must be taken such that the input and output signal polygons do not overlap each other on lower layers. Figure 6 – Current vs. PCB temperature derating curve. Picor Corporation • www.picorpower.com QPI-11 Data Sheet Rev. 1.6 Page 3 of 5 Figure 5 – Recommended mounting on a 2 layer board QPI-11 PCB Layout Recommendations Post Solder Cleaning The filtering performance of the QPI-11 and –12 is sensitive to capacitive coupling between its input and output pins. Parasitic plane capacitance must be kept below 1 pico-Farad between inputs and outputs using the layout shown above and the recommendations described below to achieve maximum conducted EMI performance. Picor lidded QP SIPs are not hermetically sealed and must not be exposed to liquid, including but not limited to cleaning solvents, aqueous washing solutions or pressurized sprays. To avoid capacitive coupling between input and output pins, there should not be any planes or large traces that run under both input and output pins, such as a ground plane or power plane. For example, if there are two signal planes or large traces where one trace runs under the input pins, and the other under the output pins, and both planes over lap in another area, they will cause capacitive coupling between input and output pins. Also, planes that run under both input and outputs pins, but do not cross, can cause capacitive coupling if they are capacitively by-passed together. When soldering, it is recommended that no-clean flux solder be used, as this will insure that potentially corrosive mobile ions will not remain on, around, or under the module following the soldering process. For applications requiring water wash compatibility the “–01” open frame version should be used. Figure 5 shows the recommended pcb layout on a 2 layer board. Here, the top layer planes are duplicated on the bottom layer so that there can be no overlapping of input and output planes. This method can be used for boards of greater layer count. Picor Corporation • www.picorpower.com QPI-11 Data Sheet Rev. 1.6 Page 4 of 5 Vicor’s comprehensive line of power solutions includes high-density AC-DC & DC-DC modules and accessory components, fully configurable AC-DC & DC-DC power supplies, and complete custom power systems. Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for its use. No license is granted by implication or otherwise under any patent or patent rights of Vicor. Vicor components are not designed to be used in applications, such as life support systems, wherein a failure or malfunction could result in injury or death. All sales are subject to Vicor’s Terms and Conditions of Sale, which are available upon request. Specifications are subject to change without notice. Vicor Corporation 25 Frontage Road, Andover, MA, USA 01810 Tel: 800-735-6200 Fax: 978-475-6715 Email Sales Support: [email protected] Technical Support: [email protected] Picor Corporation • www.picorpower.com • QPI-11 Data Sheet Rev. 1.6 10/08