# # BULK_3V3 Supply # # DCDC 8 Converter Nets # ------------------------- # # # Original Rev. 27-Mar-2015 # Current Rev. 2-Dec-2016 # # # # This file holds all of the nets for DCDC Converter 8. # # This is the BULK_3V3 supply 3.300 V at 12 Amps. # # This Hub Module supply uses a GE_PDT012 converter. # # # Connect the converter's V_Input, V_Output, and Ground terminals: # NET 'ISO_12V' DCDC8-2 NET 'GROUND' DCDC8-3 DCDC8-7 NET 'BULK_3V3' DCDC8-4 # # Connect this converter's INPUT Filter: # NET 'ISO_12V' C1361-1 C1362-1 C1363-1 C1364-1 NET 'GROUND' C1361-2 C1362-2 C1363-2 C1364-2 NET 'ISO_12V' C1365-1 C1366-1 NET 'GROUND' C1365-2 C1366-2 # # Connect this converter's OUTPUT Filter: # NET 'BULK_3V3' C1371-1 C1372-1 C1373-1 C1374-1 NET 'GROUND' C1371-2 C1372-2 C1373-2 C1374-2 NET 'BULK_3V3' C1375-1 C1376-1 C1377-1 DZ1351-1 NET 'GROUND' C1375-2 C1376-2 C1377-2 DZ1351-2 # # Ground this converter's unused SYNC terminal: # NET 'GROUND' DCDC8-11 # # Connect the ON_OFF and POWER_GOOD terminals: # # Recall: The ON_OFF pin is Low active, i.e. voltage low --> ON. # The POWER_GOOD is a common open drain signal # NET 'DCDC_8_OFF_ON' DCDC8-1 NET 'DCDC_8_POWER_GOOD' DCDC8-10 # # Connect the RAMP_SEQUENCE terminal: # # Recall: # # The output voltage tracks the scaled Vseq up to set point. # R1355 is the 20k Ohm series resistor. # R1356 is the scale shunt resistor to ground. NET 'CONVERTER_RAMP' R1355-2 NET 'DCDC8_RAMP_SEQUENCE' R1355-1 R1356-2 C1352-2 DCDC8-9 NET 'DCDC8_SIG_GND' R1356-1 C1352-1 # # Connect this converter's Output Voltage Control resistor # between the TRIM and SIG_GND terminals: # NET 'DCDC8_TRIM' DCDC8-6 R1352-2 NET 'DCDC8_SIG_GND' DCDC8-13 R1352-1 # # Connect this converter's Remote Sense input # terminals V_SENSE_PLUS and V_SENSE_MINUS: # NET 'BULK_3V3' DCDC8-5 NET 'GROUND' DCDC8-12 # # Connect this converter's Servo Loop RC components # between the V_SENSE_PLUS and TRIM terminals: # NET 'BULK_3V3' C1351-1 NET 'DCDC8_LOOP_RC' C1351-2 R1351-1 NET 'DCDC8_TRIM' R1351-2 # # Connect the PMBus to this converter and set its address # using the PMBUS_CLK, PMBUS_DATA, SMB_ALERT, ADRS0 # and ADRS1 terminals: # NET 'Hub_PMBus_SCL' DCDC8-8 NET 'Hub_PMBus_SDA' DCDC8-15 NET 'Hubs_SMB_Alert_B' DCDC8-14 NET 'DCDC8_ADRS_0' DCDC8-16 R1353-2 NET 'DCDC8_ADRS_1' DCDC8-17 R1354-2 NET 'DCDC8_SIG_GND' R1353-1 R1354-1 # # Connect the Power Via Arrays # # # INPUT Via-Arrays # NET 'ISO_12V' PVA1_dc8-1 PVA1_dc8-2 PVA1_dc8-3 NET 'ISO_12V' PVA1_dc8-4 PVA1_dc8-5 PVA1_dc8-6 NET 'ISO_12V' PVA2_dc8-1 PVA3_dc8-1 # # GROUND Via-Arrays # NET 'GROUND' PVA4_dc8-1 PVA4_dc8-2 PVA4_dc8-3 NET 'GROUND' PVA5_dc8-1 PVA6_dc8-1 PVA7_dc8-1 NET 'GROUND' PVA8_dc8-1 PVA9_dc8-1 # # OUTPUT Via-Arrays # NET 'BULK_3V3' PVA10_dc8-1 PVA10_dc8-2 PVA10_dc8-3 NET 'BULK_3V3' PVA10_dc8-4 PVA10_dc8-5 PVA10_dc8-6 NET 'BULK_3V3' PVA11_dc8-1 PVA11_dc8-2 PVA11_dc8-3 NET 'BULK_3V3' PVA11_dc8-4 PVA11_dc8-5 PVA11_dc8-6 NET 'BULK_3V3' PVA12_dc8-1 PVA13_dc8-1