# # Didsco-Kraken DCDC-1 Nets File # # # VDD_ADC_1V00 1.000 V Power Converter # -============------------------------------- # # # Original Rev. 5-Feb-2023 # Most Recent Rev. 6-Nov-2023 # # # This file holds the nets for the VDD_ADC_1V00 # DC/DC Power Converter. This converter runs from # the BULK_5V0 bus and it makes the VDD_ADC_1V00 # bus which is expected to draw about 1.4 Amps. # This converter is a 3 Amp PTH04T260WAD module. # # # This converter is located in the South East corner # # Components with Reference Designators in the range # # 1701:1729 are part of the VDD_ADC_1V000 Converter. # # # For reference recall the 7 DCDC Converters on DK: # # # Output Expected Current Power Trends # Name Desig Power Bus Voltage Load Capacity Model Number # ------ ----- ------------- ------- -------- -------- ------------ # # DCDC1 1701 Bulk_1V00 1.00 V 1.4 A 3 A PTH04T260WAD # DCDC2 1731 Bulk_1V05 1.05 V < 3.0 A 6 A PTH04T230WAD # DCDC3 1761 Bulk_1V2 1.20 V 4.0 A 6 A PTH04T230WAD # DCDC4 1791 Bulk_1V8 1.80 V < 1.5 A 3 A PTH04T260WAD # DCDC5 1821 Bulk_2V5 2.50 V 1.4 A 3 A PTH04T260WAD # DCDC6 1851 Bulk_3V3 3.30 V < 1.5 A 3 A PTH04T260WAD # # # # Define the Connections within the VDD_ADC_1V000 Power Converter # ------------------------------------=============------------------ # # # Input Power to the Converter: NET 'BULK_5V0' R1701-2 # Power to the Current Sense Resistor NET 'VDD_ADC_CS_TO_L' R1701-3 # Power from the Current Sense NET 'VDD_ADC_CS_TO_L' L1701-1 # Resistor to the Filter Inductor NET 'VDD_ADC_INPUT' L1701-2 # Power feed to the Converter NET 'VDD_ADC_INPUT' C1701-1 C1702-1 # Tantalum Input Caps NET 'VDD_ADC_INPUT' C1703-1 C1704-1 # Tantalum Input Caps NET 'VDD_ADC_INPUT' C1705-2 C1706-1 # Ceramic Input Caps NET 'VDD_ADC_INPUT' C1707-2 C1708-2 # Ceramic Input Caps NET 'VDD_ADC_INPUT' DCDC1-2 # Power Input to the Converter NET 'GROUND' C1701-2 C1702-2 # Tantalum Cap Grounds NET 'GROUND' C1703-2 C1704-2 # Taltalum Cap Grounds NET 'GROUND' C1705-1 C1706-2 # Ceramic Cap Grounds NET 'GROUND' C1707-1 C1708-1 # Ceramic Cap Grounds # # Power Output from the Converter: NET 'VDD_ADC_1V0' DCDC1-4 # Output Power from the Converter NET 'VDD_ADC_1V0' C1709-1 C1710-1 # Ceramic Output Caps NET 'VDD_ADC_1V0' C1711-2 C1712-1 # Ceramic Output Caps NET 'VDD_ADC_1V0' C1713-1 C1714-1 # Tantalum Output Caps NET 'VDD_ADC_1V0' C1715-1 C1716-1 # Tantalum Output Caps NET 'VDD_ADC_1V0' DZ1701-1 # Output Zener Clamp NET 'GROUND' C1709-2 C1710-2 # Ceramic Cap Grounds NET 'GROUND' C1711-1 C1712-2 # Ceramic Cap Grounds NET 'GROUND' C1713-2 C1714-2 # Tantalum Cap Grounds NET 'GROUND' C1715-2 C1716-2 # Tantalum Cap Grounds NET 'GROUND' DZ1701-2 # Zener Clamp Ground # # DC/DC Converter GROUND Pins NET 'GROUND' DCDC1-3 # Converter Ground Pin NET 'GROUND' DCDC1-31 DCDC1-32 # Converter Auxiliary Ground Pins # # DC/DC Converter Tracking Pin NET 'DCDC_CONV_TRACK' DCDC1-9 # TRACK Pin of VDD_ADC Converter # # DC/DC Converter Feedback Remote Sense Pins NET 'VDD_ADC_1V0' AKA1701-2 # Positive SENSE Remote Connection NET 'VDD_ADC_SEN_POS' AKA1701-1 DCDC1-5 # Positive SENSE input pin NET 'GROUND' AKA1702-2 # Negative SENSE Remote Connection NET 'VDD_ADC_SEN_NEG' AKA1702-1 DCDC1-6 # Negative SENSE input pin # # DC/DC Converter Output Voltage Rset Resistor # with capacitor across the variable part of the Vout Rset Resistor # # NOTE: Ground Reference not Negative Sense Reference NET 'GROUND' R1703-1 R1703-2 # Want Trim Pot CW Truning to: NET 'VDD_ADC_VAR_FIX' R1703-3 # Reduce the Resistance and NET 'VDD_ADC_VAR_FIX' R1702-2 # Increase the Output Voltage NET 'VDD_ADC_VO_ADJ' R1702-1 DCDC1-7 # Converter Rset Vout Adj pin NET 'VDD_ADC_VAR_FIX' C1717-1 # Capacitor across the NET 'GROUND' C1717-2 # Vout Trim Pot Resistor # # DC/DC Converter Transient Response Control Pin NET 'VDD_ADC_TRC_PIN' R1704-2 DCDC1-8 # Transient Response Control pin NET 'VDD_ADC_SEN_POS' R1704-1 # Transient Response Resistor # # DC/DC Converter INH-UVLO Pin and Resistor NET 'VDD_ADC_INH_UVLO' R1705-2 DCDC1-10 # INH-UVLO Pin #10 NET 'GROUND' R1705-1 # Ground end of UVLO Resistor # # DC/DC Converter Sync Pin tied to Ground via trace NET 'VDD_ADC_SYNC' AKA1703-1 DCDC1-1 # Converter's SYNC Pin NET 'GROUND' AKA1703-2 # Tie SYNC Pin to Ground # # Current Sense Resistor to Filter and to Current Monitor Connector Pins NET 'VDD_ADC_CS_POS' R1701-4 R1706-1 # Current Sense Res. to Filter Res. NET 'VDD_ADC_CS_NEG' R1701-1 R1707-1 # Current Sense Res. to Filter Res. NET 'VDD_ADC_CS_POS_PIN' R1706-2 C1718-1 # Current Monitor Filter Res Cap Pin NET 'VDD_ADC_CS_NEG_PIN' R1707-2 C1720-2 # Current Monitor Filter Res Cap Pin NET 'VDD_ADC_CS_POS_PIN' C1719-1 # Current Monitor Shunt Cap NET 'VDD_ADC_CS_NEG_PIN' C1719-2 # Current Monitor Shunt Cap NET 'GROUND' C1718-2 C1720-1 # Current Monitor Filter Cap Grounds # # Voltage Monitor Filter and to Voltage Monitor Connector Pin NET 'VDD_ADC_1V0' R1708-1 # Voltage Monitor Filter Resistor NET 'VDD_ADC_VS_PIN' R1708-2 C1721-1 # Voltage Monitor Filter Res Cap Pin NET 'GROUND' C1721-2 # Voltage Monitor Filter Cap Ground