# # MGT_AVTT Supply # # DCDC 3 Converter Nets # ------------------------- # # # Original Rev. 27-Mar-2015 # Current Rev. 2-Dec-2016 # # # # This file holds all of the nets for DCDC Converter 3. # # This is the MGT_AVTT supply 1.200 V at 20 Amps. # # This Hub Module supply uses a GE_UDT020 converter. # # # Connect the converter's V_Input, Ground, and V_Output terminals: # NET 'ISO_12V' DCDC3-2 NET 'GROUND' DCDC3-4 NET 'MGT_AVTT_pre_L' DCDC3-6 # # Connect this converter's INPUT Via Arays: # NET 'ISO_12V' PVA1_DC3-1 PVA1_DC3-2 PVA1_DC3-3 PVA1_DC3-4 NET 'ISO_12V' PVA1_DC3-5 PVA1_DC3-6 NET 'ISO_12V' PVA2_DC3-1 PVA2_DC3-2 PVA2_DC3-3 PVA2_DC3-4 # # Connect this converter's GROUND and Sync = Ground Via Arays: # NET 'GROUND' PVA3_DC3-1 PVA3_DC3-2 PVA3_DC3-3 PVA3_DC3-4 NET 'GROUND' PVA4_DC3-1 PVA4_DC3-2 PVA4_DC3-3 PVA4_DC3-4 NET 'GROUND' PVA4_DC3-5 PVA4_DC3-6 PVA4_DC3-7 PVA4_DC3-8 NET 'GROUND' PVA4_DC3-9 PVA4_DC3-10 PVA4_DC3-11 PVA4_DC3-12 NET 'GROUND' PVA5_DC3-1 NET 'GROUND' PVA6_DC3-1 NET 'GROUND' PVA7_DC3-1 # # Connect this converter's OUTPUT Via Arays: # NET 'MGT_AVTT_pre_L' PVA8_DC3-1 PVA8_DC3-2 PVA8_DC3-3 PVA8_DC3-4 NET 'MGT_AVTT_pre_L' PVA8_DC3-5 PVA8_DC3-6 PVA8_DC3-7 PVA8_DC3-8 NET 'MGT_AVTT_pre_L' PVA8_DC3-9 PVA8_DC3-10 PVA8_DC3-11 PVA8_DC3-12 NET 'MGT_AVTT_pre_L' PVA9_DC3-1 NET 'MGT_AVTT_pre_L' PVA10_DC3-1 NET 'MGT_AVTT_pre_L' PVA11_DC3-1 # # Connect this converter's INPUT Filter: # NET 'ISO_12V' C1111-1 C1112-1 C1113-1 C1114-1 NET 'GROUND' C1111-2 C1112-2 C1113-2 C1114-2 NET 'ISO_12V' C1115-1 C1116-1 NET 'GROUND' C1115-2 C1116-2 # # Connect this converter's OUTPUT Filter # and connect the Output Filter Choke: # NET 'MGT_AVTT_pre_L' C1121-1 C1122-1 C1123-1 C1124-1 C1128-1 NET 'GROUND' C1121-2 C1122-2 C1123-2 C1124-2 C1128-2 NET 'MGT_AVTT_pre_L' C1125-1 C1126-1 NET 'GROUND' C1125-2 C1126-2 NET 'MGT_AVTT_pre_L' C1127-1 NET 'GROUND' C1127-2 NET 'MGT_AVTT_pre_L' L1101-1 NET 'MGT_AVTT' L1101-2 NET 'MGT_AVTT' DZ1101-1 NET 'GROUND' DZ1101-2 # # Ground this converter's unused SYNC terminal: # NET 'GROUND' DCDC3-10 # # 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_3_OFF_ON' DCDC3-1 NET 'DCDC_3_POWER_GOOD' DCDC3-9 # # Connect the RAMP_SEQUENCE terminal: # # Recall: # # The output voltage tracks the scaled Vseq up to set point. # R1105 is the 20k Ohm series resistor. # R1106 is the scale shunt resistor to ground. NET 'CONVERTER_RAMP' R1105-2 NET 'DCDC3_RAMP_SEQUENCE' R1105-1 R1106-2 C1102-2 DCDC3-3 NET 'DCDC3_SIG_GND' R1106-1 C1102-1 # # Connect this converter's Output Voltage Control resistor # between the TRIM and SIG_GND terminals: # NET 'DCDC3_TRIM' DCDC3-5 R1102-2 NET 'DCDC3_SIG_GND' DCDC3-14 R1102-1 # # Connect this conberter's Feedback Source Point # Select Jumpers to the two possible feedback # source points. # NET 'MGT_AVTT_pre_L' JMP1101-2 JMP1103-1 NET 'MGT_AVTT' JMP1102-2 JMP1104-1 # Connect this converter's Differential Amp # Remote Sense input terminals V_SENSE_PLUS # and V_SENSE_MINUS: # NET 'DCDC3_DIFF_FDBK' DCDC3-7 JMP1101-1 JMP1102-1 NET 'GROUND' DCDC3-8 # # Connect this converter's Servo Loop RC components # between the Feedback Source Point Select Jumpers # and its TRIM terminal: # NET 'DCDC3_RC_FDBK' C1101-2 JMP1103-2 JMP1104-2 NET 'DCDC3_LOOP_RC' C1101-1 R1101-1 NET 'DCDC3_TRIM' R1101-2 # # Connect this converter's direct capacitor feedback # from before the LC filter to its "Trim" input. # NET 'MGT_AVTT_pre_L' C1103-1 NET 'DCDC3_TRIM' C1103-2 # # 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' DCDC3-11 NET 'Hub_PMBus_SDA' DCDC3-12 NET 'Hubs_SMB_Alert_B' DCDC3-13 NET 'DCDC3_ADRS_0' DCDC3-16 R1103-1 NET 'DCDC3_ADRS_1' DCDC3-15 R1104-1 NET 'DCDC3_SIG_GND' R1103-2 R1104-2 # # Connections to the PVAs Added during routing: # NET 'MGT_AVTT_Pre_L' PVA12_DC3-1 PVA12_DC3-2 PVA12_DC3-3 NET 'MGT_AVTT_Pre_L' PVA12_DC3-4 PVA12_DC3-5 PVA12_DC3-6 NET 'MGT_AVTT_Pre_L' PVA13_DC3-1 PVA13_DC3-2 PVA13_DC3-3 NET 'MGT_AVTT' PVA14_DC3-1 PVA14_DC3-2 PVA14_DC3-3 NET 'MGT_AVTT' PVA14_DC3-4 PVA14_DC3-5 PVA14_DC3-6 NET 'MGT_AVTT' PVA15_DC3-1 PVA15_DC3-2 PVA15_DC3-3 NET 'MGT_AVTT' PVA15_DC3-4 PVA15_DC3-5 PVA15_DC3-6 NET 'MGT_AVTT' PVA16_DC3-1 PVA16_DC3-2 PVA16_DC3-3 PVA16_DC3-4 NET 'MGT_AVTT' PVA17_DC3-1 PVA17_DC3-2 PVA17_DC3-3 PVA17_DC3-4 NET 'MGT_AVTT' PVA18_DC3-1 PVA18_DC3-2 PVA18_DC3-3 NET 'GROUND' PVA19_DC3-1 PVA19_DC3-2 PVA19_DC3-3 NET 'GROUND' PVA20_DC3-1 PVA20_DC3-2 PVA20_DC3-3 NET 'ISO_12V' PVA21_DC3-1