Renesas ISL8273M User Manual Download | Manualshive

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UG036 Rev 0.00

Page 12 of 17

August 7, 2015

lSL8273MEVAL1Z

FIGURE 14. BOTTOM LAYER SOLDER SIDE

FIGURE 15. SILKSCREEN BOTTOM

Layout

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Summary of Contents for ISL8273M

Page 1: ...ovided with this evaluation board which connects the evaluation board to a PC to activate the PMBus communication interface The PMBus command set is accessed by using the PowerNavigator evaluation software from a PC running Microsoft Windows The ISL8273MEVAL1Z can operate in pin strap mode without needing the ZLUSBEVAL3Z adapter or PMBus communication References ISL8273M datasheet Key Features VIN...

Page 2: ...NTERCONNECTS DDC AND SYNC BETWEEN BOARDS CONNECT TO ZLUSBEVAL3Z DONGLE FOR MULTIPLE BOARD EVALUATION CONNECT TO PMBus DONGLE OUT CONNECTION OF OTHER BOARD INTERCONNECTS DDC BETWEEN BOARDS TO DAISY CHAIN PMBus CONNECTION PGOOD LED ENABLE SWITCH VOUT REGULATION MONITOR AND SYNC RESISTOR PLACEHOLDERS ...

Page 3: ...SET placeholder location on bottom layer Refer to the Switching Frequency Resistor Settings table in the ISL8273M datasheet for recommended values 11 To change soft start stop delay and ramp time disconnect board from the setup and populate a 1 standard 0603 resistor at R6 placeholder location on bottom layer Refer to the Soft Start Stop Resistor Settings table in the ISL8273M datasheet for recomm...

Page 4: ...ace width copper weight and the proper connectors The ISL8273MEVAL1Z evaluation board is designed for running 80A at room temperature without additional cooling systems needed However if the output voltage is increased or the board is operated at elevated temperatures then the available current is derated Refer to the derated current curves in the ISL8273M datasheet to determine the maximum output...

Page 5: ...V1 NC VSET EN VOUT VSENP VSENN VOUT NC NC PG ASCR VDRV VDRV SS UVLO CS MGN PGND PGND VCC V25 VR5 VR6 SWD2 SWD1 SW1 PGND SW2 PGND PGND PGND PGND PGND VMON SGND SGND SGND SGND SGND DDC SYNC PGND PGND VR VR55 NC NC VDD U1 ISL8273MAIRZ PAD6 M14 K16 J16 H16 C9 D4 C7 C8 C5 C6 G4 F4 D13 E4 C10 C11 C12 C13 PAD8 N6 PAD9 N16 PAD11 M1 G15 K14 L14 M13 L2 M10 PAD10 PAD12 R8 M5 R17 M17 N5 E14 D14 G14 D5 F15 E15...

Page 6: ... TSW 103 08 T D RA CONN HEADER 2x3 BRKAWY 2 54mm TIN R A ROHS D1 1 LUMEX SSL LXA3025IGC TR LED SMD 3x2 5mm 4P RED GREEN 12 20MCD 2V U1 1 INTERSIL ISL8273MAIRZ IC 80A DIGITAL DC DC MODULE 42P HDA ROHS Q1 1 ON SEMICONDUCTOR 2N7002LT1G TRANSISTOR MOS N CHANNEL SMD SOT23 60V 115mA ROHS U2 1 INFINEON TECHNOLOGY BSC010NE2LSI TRANSIST MOS N CHANNEL 8P PG TDSON 8 25V 100A ROHS R4 R7 0 RESISTOR SMD 0603 0 ...

Page 7: ...Faults OT_FAULT_LIMIT 0xebe8 125 C OT_FAULT_RESPONSE 0x80 Disable and no retry OT_WARN_LIMIT 0xeb70 110 C UT_WARN_LIMIT 0xdc40 30 C UT_FAULT_LIMIT 0xe530 45 C UT_FAULT_RESPONSE 0x80 Disable and no retry VIN_OV_FAULT_LIMIT 0xd380 14 V VIN_OV_FAULT_RESPONSE 0x80 Disable and no retry VIN_OV_WARN_LIMIT 0xd353 13 3 V VIN_UV_WARN_LIMIT 0xca5d 4 73 V VIN_UV_FAULT_LIMIT 0xca40 4 5 V VIN_UV_FAULT_RESPONSE ...

Page 8: ...UG036 Rev 0 00 Page 8 of 17 August 7 2015 lSL8273MEVAL1Z Layout FIGURE 6 SILKSCREEN TOP FIGURE 7 TOP LAYER COMPONENT SIDE ...

Page 9: ...UG036 Rev 0 00 Page 9 of 17 August 7 2015 lSL8273MEVAL1Z FIGURE 8 LAYER 2 FIGURE 9 LAYER 3 Layout Continued ...

Page 10: ...UG036 Rev 0 00 Page 10 of 17 August 7 2015 lSL8273MEVAL1Z FIGURE 10 LAYER 4 FIGURE 11 LAYER 5 Layout Continued ...

Page 11: ...UG036 Rev 0 00 Page 11 of 17 August 7 2015 lSL8273MEVAL1Z FIGURE 12 LAYER 6 FIGURE 13 LAYER 7 Layout Continued ...

Page 12: ...UG036 Rev 0 00 Page 12 of 17 August 7 2015 lSL8273MEVAL1Z FIGURE 14 BOTTOM LAYER SOLDER SIDE FIGURE 15 SILKSCREEN BOTTOM Layout Continued ...

Page 13: ...T AT VIN 12V FOR VARIOUS OUTPUT VOLTAGES FIGURE 21 EFFICIENCY vs SWITCHING FREQUENCY AT VIN 12V IOUT 70A FOR VARIOUS OUTPUT VOLTAGES 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 ACTUAL OUTPUT CURRENT A READ_IOUT 300kHz 421kHz 533kHz 889kHz 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 ACTUAL OUTPUT CURRENT A READ_IOUT 0 C 25 C 45 C 65 C 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70...

Page 14: ...N 12V VOUT 1V TOFF_DELAY 5ms TOFF_FALL 5ms FIGURE 26 OUTPUT SHORT CIRCUIT PROTECTION AT VIN 12V VOUT 1V fSW 421kHz FIGURE 27 OUTPUT OVERVOLTAGE PROTECTION AT VIN 12V VOUT 1V fSW 421kHz VOUT_OV_FAULT_LIMIT 1 15V Typical Performance Data The following data was acquired using a ISL8273MEVAL1Z evaluation board Continued VOUT 50mV DIV IOUT 20A DIV 50µs DIV ASCR GAIN 140 RESIDUAL 90 ASCR GAIN 220 RESIDU...

Page 15: ... 1mV µs FIGURE 33 PHASE SPREADING INTERLEAVING TWO ISL8273MEVAL1Z BOARDS ARE CONNECTED IN DAISY CHAIN MODULE 1 RAIL POSITION 0 MODULE 2 RAIL POSITION 4 VIN 12V VOUT_1 1 8V VOUT_2 1 2V fSW 421kHz Typical Performance Data The following data was acquired using a ISL8273MEVAL1Z evaluation board Continued SW1 10V DIV SW2 10V DIV VOUT 1V DIV 50ms DIV IIN 5A DIV SW1 10V DIV SW2 10V DIV VOUT 1V DIV IIN 5A...

Page 16: ... 34 THERMAL IMAGE AT VIN 12V VOUT 1V IOUT 80A fSW 300kHz TA 25 C NO AIRFLOW FIGURE 35 THERMAL IMAGE AT VIN 12V VOUT 1 8V IOUT 80A fSW 350kHz TA 25 C NO AIRFLOW Typical Performance Data The following data was acquired using a ISL8273MEVAL1Z evaluation board Continued ...

Page 17: ...cs document Renesas Electronics products are not intended or authorized for use in products or systems that may pose a direct threat to human life or bodily injury artificial life support devices or systems surgical implantations etc or may cause serious property damage space system undersea repeaters nuclear power control systems aircraft control systems key plant systems military equipment etc R...

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