Electronic Components Datasheet Search |
|
EVB-EP5352QI Datasheet(PDF) 11 Page - Altera Corporation |
|
EVB-EP5352QI Datasheet(HTML) 11 Page - Altera Corporation |
11 / 18 page EP5382QI/EP5362QI/EP5352QI Recommendation 3: Multiple small vias (0.25mm after copper plating) should be used to connect ground terminals of the Input capacitor and the output capacitor to the system ground plane. This provides a low inductance path for the high-frequency AC currents, thereby reducing ripple and suppressing EMI (see Fig. 5, Fig. 6, and Fig. 7). Recommendation 4: The large thermal pad underneath the component must be connected to the system ground plane through as many thermal vias as possible. The vias should use 0.33mm drill size with minimum one ounce copper plating (0.035mm plating thickness). This provides the path for heat dissipation from the converter. Recommendation 5: The system ground plane referred to in recommendations 3 and 4 should be the first layer immediately below the surface layer (PCB layer 2). This ground plane should be continuous and un-interrupted below the converter and the input and output capacitors that carry large AC currents. If it is not possible to make PCB layer 2 a continuous ground plane, an uninterrupted ground “island” should be created on PCB layer 2 immediately underneath the EP53x2QI and its input and output capacitors. The vias that connect the input and output capacitor grounds, and the thermal pad to the ground island, should continue through to the PCB GND layer as well. Recommendation 6: As with any switch-mode DC/DC converter, do not run sensitive signal or control lines underneath the converter package. Figure 6 shows an example schematic for the EP53x2QI using the internal voltage select. In this example, the device is set to a VOUT of 1.2V (VS2=0, VS1=1, VS0=1). NC NC NC V OUT ENABLE VS0 VS1 VS2 10 9 8 7 20 19 18 17 4.7uF/2.2uF 10 µF V IN V OUT (see layout recommendation 3) Figure 6. Example application, Vout=1.2V. Figure 7 shows an example schematic using an external voltage divider. VS0=VS1=VS2= “1”. The resistor values are chosen to give an output voltage of 2.6V. 11 www.altera.com/enpirion 03132 October 11, 2013 Rev H |
Similar Part No. - EVB-EP5352QI |
|
Similar Description - EVB-EP5352QI |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |