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EVAL-ADM1075MEBZ User Guide

UG-548

Rev. A | Page 13 of 16

Figure 16. Top Layer

Figure 17. Inner Layer 2

Figure 18. Inner Layer 3

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Содержание EVAL-ADM1075MEBZ

Страница 1: ...RAL DESCRIPTION The ADM1075 mini evaluation board EVAL ADM1075MEBZ is a compact reduced feature version of the ADM1075 evaluation board EVAL ADM1075EBZ for the ADM1075 1ACPZ and ADM1075 2ACPZ devices The mini evaluation board is designed to power up with a 15 A current limit a 300 μF load capacitance and a minimum of 24 Ω load resistance Two sense resistor footprints and two FET footprints provide...

Страница 2: ...luation Board Description 4 EVAL ADM1075MEBZ 5 EVAL ADM1075 ISOZ 6 Evaluation Board Hardware 7 Switch Jumper and LED Functions 7 Test Plots 9 Evaluation Board Schematics and Layout 10 EVAL ADM1075MEBZ 10 EVAL ADM1075 ISOZ 12 Bill of Materials 15 EVAL ADM1075MEBZ 15 EVAL ADM1075 ISOZ 16 REVISION HISTORY 4 14 Rev 0 to Rev A Changes to Evaluation Kit Contents 1 Changes to Figure 11 10 Changes to Tabl...

Страница 3: ...tton on the mini evaluation board EVAL ADM1075MEBZ The green LEDs labeled D_PWRGD and PWRGD both turn off and then turn back on after 10 sec 7 You can use the SHDN2 switch and SHDN push button on the isolation board EVAL ADM1075 ISOZ to turn off the hot swap 8 If a latch event occurs for example a short circuit during operation the red LED labeled LATCH illuminates on the isolation board EVAL ADM1...

Страница 4: ... board EVAL ADM1075MEBZ is connected to the isolation board EVAL ADM1075 ISOZ using a Micro MaTch cable and is connected to a PC using a USB SDP CABLEZ dongle for isolated I2 C communication Figure 2 Basic Block Diagram SDA_ISO SDA GND_ ISO 48V 5V_ ISO 5V SCL_ISO SCL ADM1075 ISOZ ADM1075 MEBZ PWRGD UL_SPLYGD LATCH GPO2 PWRGD_ISO SPLYGD_ISO LATCH_ISO GPO2_ISO ADuM5404 ADuM1250 ISOLATION BARRIER 5V ...

Страница 5: ...intain a 10 ms FET safe operating area The undervoltage and overvoltage thresholds were set using resistor dividers to achieve the values shown in Table 1 A resistor divider was also used on the ISET pin to set the current limit to approximately 15 A The constant power level was set to the maximum allowable level for the FET safe operating area to allow power up in one attempt These values can all...

Страница 6: ... side of the board The push buttons and switch on the isolation board EVAL ADM1075 ISOZ allow the user to control the mini evaluation board EVAL ADM1075MEBZ The three on board LEDs provide users with a direct visual indication of IC power good latch event occurrence and 5 V power supply from USB SDP CABLEZ The 8 way connector is used to connect the mini evaluation board EVAL ADM1075MEBZ to the iso...

Страница 7: ...L ADM1075 ISOZ isolation board Table 3 Switch Functions Switch Description RESTART Push button switch to trigger a shutdown that lasts for 10 sec Table 4 LED Functions LED Description D_PWRGD PWRGD active low green Table 5 On Board ICs IC Description U1 ADM1075 main IC Table 6 Retry Configuration Bill of Materials Component Retry Scheme R 7RTY R 1 10S R 7 10S No Retries Latch Off Not populated Not...

Страница 8: ...push button can be used to clear faults Note that SHDN has a retry counter capable of counting up to seven shutdown events After seven shutdown events GPO2 goes active low and then a restart or clear via a PMBus is required to enable the hot swap again DELATCH Push button switch to clear a latch event after seven shutdown events SPARE Push button switch connected to GPO1_TP Table 9 LED Functions L...

Страница 9: ...to a Fault Condition Test Points Are as Follows Channel VIN Channel2 TIMER Channel3 VDS Channel4 SystemCurrent Math Channel FET Power Figure8 TimerCycleatPower Up TestPointsAreasFollows Channel1 VIN Channel 2 TIMER Channel 3 VDS Channel 4 System Current Figure 9 Short Circuit Event Test Points Are as Follows Channel 1 VIN Channel 2 GATE Channel 3 VDS Channel 4 System Current Math Channel FET Power...

Страница 10: ...DN 11 RESTART 12 GPO1 13 GPO2 14 SDAO 15 SDAI 16 SCL 17 PWRGD 18 ADC_AUX 19 SPLYGD 20 VEE 21 SENSEN 22 SENSEP 23 GATE 24 VEE_G 25 DRAIN 26 VIN 27 UVH 28 UVL 29 PADDLE U1 ADM1075 LFCSP CVCAP 1uF CSS 10nF CTIMER 470nF R24 0R R23 DNI R25 200K R27 100K R30 2M R16 DNI RVIN1 15k CVIN 1uF CLOAD DNI D1 85V SMCJ85A COV 100nF R26 2k8 R29 2K94 R17 100k R18 1k LOAD 20k CUV 100nF RVIN2 15k RVIN3 15k RVIN4 15k ...

Страница 11: ...EVAL ADM1075MEBZ User Guide UG 548 Rev A Page 11 of 16 Figure 12 Top Layer Figure 13 Inner Layer 2 Figure 14 Assembly Top 11414 020 11414 021 11414 022 ...

Страница 12: ...CSS1210B SPARE R13 1k PWRGD R11 3k3 LATCH R12 3k3 R3 DNI R4 DNI R6 100k R7 100k R8 100k R5 DNI PWRGD UVL SPLGD LATCH SHDN GPO R9 3k3 R10 3k3 1 2 3 4 5 6 7 8 J1 8WAY SOCKET SMD MICROMATCH 48V SDA 48V 48V 48V SCL PWRGD UVL_ SPLYGD LATCH_TP GPO1_TP SHDN_GPO2 SDA SCL 5V 5V 48V 48V 5V PWRGD UVL_ SPLYGD LATCH_TP 48V GPO1_TP SHDN_GPO2 5V_ISO SDA_ISO SCL_ISO GND_ISO 5V_ISO GND_ISO GND_ISO PWRGD_ISO UVL_ S...

Страница 13: ...EVAL ADM1075MEBZ User Guide UG 548 Rev A Page 13 of 16 Figure 16 Top Layer Figure 17 Inner Layer 2 Figure 18 Inner Layer 3 11414 013 11414 014 11414 015 ...

Страница 14: ...UG 548 EVAL ADM1075MEBZ User Guide Rev A Page 14 of 16 Figure 19 Bottom Layer Figure 20 Assembly Top 11414 016 11414 017 ...

Страница 15: ...stor 20 kΩ Farnell 1894202 Q1 Q2 MOSFET N channel 150 V 100 A PG TO263 3 Farnell 1775544 Q3 MOSFET N channel 3 SC 70 Farnell 1470156 Q4 MOSFET N channel 60 V 1 2 A SOT 23 Farnell 1791578 R 1 10S R 7 10S R 7RTY Resistor Do not insert R1 to R6 Resistor 10 Ω Farnell 1738878 R7 R12 R16 R23 Resistor Do not insert R8 to R11 R13 R24 R28 Resistor 0 Ω Farnell 9331662 R14 R15 Resistor 100 kΩ Farnell 9330402...

Страница 16: ...se consultants The Evaluation Board is NOT sold to Customer all rights not expressly granted herein including ownership of the Evaluation Board are reserved by ADI CONFIDENTIALITY This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any rea...

Страница 17: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Analog Devices Inc EVAL ADM1075MEBZ ...

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