Intersil ISLVERSALDEMO2Z Manuel utilisateur

Demonstration Board Manual

R34UZ0015EU0102 Rev.1.02 Page 1

The ISLVERSALDEMO2Z evaluation board provides

the power management for the AMD Xilinx Space

Grade Versal ACAP AI Core VC1902 using Renesas'

Radiation Hardened Power Management devices.

The Versal ACAP system requires various supply

rails, including the core, digital, analog and DDR

memory. The ISLVERSALDEMO2Z provides all these

rails for the user to evaluate the performance against

the Versal ACAP DC and AC electrical specifications.

Power Supply Specifications

▪+12VDC ±10% (Banana Jack Connectors)

Features

▪Radiation hardened QMLV power solution by

Renesas (MIL-PRF-38535)

▪Designed to power AMD Xilinx Space Grade Versal

ACAP AI Core VC1902

▪Includes regulators for all VC1902 rails, DDR4

Memory and general +5V/+3.3V bus

▪Power Supply Sequencing up and down on all rails

Figure 1. Power Management Block Diagram

AMD Xilinx

Versal

ACAP

AI Core

ISL73847 (x1)

ISL73041 (x2)

ISL70020 (x8)

12V

5V0_SYS

VCCINT, 0.8V/100A

ISL73007 VGTYAVTT, 1.2V/3A

ISL73007 VCCO_XPIO, 1.0V-1.5V/3A

ISL73007 VCCAUXPMC, 1.5V/0.5A

ISL73007 VCCO50x, 1.8V-3.3V/3A

ISL73007 VCCPMC, 0.8V/0.5A

ISL73007 VGTYAVCC, 0.88V/3A

ISL70001A VCCAUX, 1.5V/6A

ISL70003A

3V3_SYS

ISL73007 VGTYAVCCAUX, 1.5V/1A

DDR4/

LPDDR4

VDD/VDDQ

VTT

VPP

ISL73007

ISL70005

ISL70001A VCC_SOC_IO, 0.8V/5A

ISL73007

ISL73007 VCCPSLP, 0.8V/1A

VCCPSFP, 0.8V/3A

VDDQ, 1.2V/3A

VTT, 0.6V/1A

VPP, 2.5V/1A

3V3_SYS

ISL73847 (x2)

ISL73041 (x4)

ISL70020 (x12)

AMD Xilinx Versal ACAP

Full Power Management

Specification

ISLVERSALDEMO2Z

R34UZ0015EU0102 Rev.1.02 Page 2

Feb 7, 2024

ISLVERSALDEMO2Z Demonstration Board Manual

Contents

1. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Power Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Renesas Power Management Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3 Adjustable Output Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.4 Output Voltage Monitor Test Points and Load Transient Generators . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.5 0.8V/100A Core Rail Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.6 Power Sequence and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.7 Power LED Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.8 12V Power Supply and Sequencing Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.9 5V Circuit Breaker Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.10 All Voltage Rail Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2. Board Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.1 Layout Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3. Typical Performance Graphs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

5. Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

R34UZ0015EU0102 Rev.1.02 Page 3

Feb 7, 2024

ISLVERSALDEMO2Z Demonstration Board Manual

1. Functional Description

1.1 Power Tree

The power tree diagram and AMD Xilinx Versal ACAP supply rail requirements table is shown below. The power

management solution is developed for the Full Power Management application of the AMD Xilinx Versal ACAP

which requires individual supplies for most of the rails and a specific power sequencing.

The ISLVERSALDEMO2Z evaluation board operates on a +12V DC power supply. Two front end DC-DC

regulators provide +5.0V and +3.3V system rails that powers all the other POL DC-DC regulators.

Important: This startup and shutdown sequence is provided as an example only. Refer to the ACAP

documentation to ensure the design satisfies its sequencing requirements.

Figure 2. Renesas Radiation Hardened Power Tree for AMD Xilinx Versal ACAP

1.8V/2.5V/3.3V

ISL73007SEH

EN VCCO

VCC_P MC

Xilinx Versal AI Core VC1902

Power Tree

+12VDC 5.0V

ISL73847SEH (x1)

ISL73041SEH (x2)

ISL70020SEH (x8)

5V0_SYS

0.88V

ISL73007SEH

1.5V

ISL70001ASEH

VCCO_500

VCCO_501

VCCO_502

VCCO_503

VCCO_HDIO

VCC_P SLP

VCCAUX

EN 3V3SYS

VCC_INT

VCC_RAM

0.8V/0.88V

ISL73007SEH

EN 0V8

3.3V

ISL70003ASEH

3V3_SYS

EN 5V0SYS

EN VCCO

1.0V/1.2V/1.5V

ISL73007SEH VCCO_XPIO

0.8V

ISL73007SEH

3VCC_PSFP

0.8V/0.88V

ISL73847SEH (x2)

ISL73041SEH (x4)

ISL70020SEH (x12)

1st

ISL70321SEH

2nd

ISL70321SEH

START

5V0_SYS

3V3_SYS

VCCO

INT

VCCAUX

GTY AVCCAUX

GTY AVTT

EN 5V0SYS

EN 3V3SYS

EN VCCO

EN 0V8

EN VCCAUX

EN GTY AVCCAUX

EN GTY AVTT

EN DDR

DDR 8

*DONE on the 2

ISL70321 sequencer

is the FPGA POR_B signal. It is kept

low until all power supplies have

sequenced up. DONE asserts high to

complete FPGA POR.

0V8 DONE

DONE/POR_B

EN 0V8

3V3_SYS

1.2V/0.6V

ISL70005SEH

VCCAUX_PMC

VCCAUX_SMON

VDDR_VDDQ

VDDR_VTT

1.2V

ISL73007SEH

7VGTY_AVTT

EN DDR

2.5V

ISL73007SEH

VDDR_VPP

EN DDR

1.5V

ISL73007SEH

0.88V

ISL73007SEH

3V3_SYS

VGTY_AVCC

VGTY_AVCCAUX

1.5V

ISL73007SEH

0.8V/0.88V

ISL70001ASEH

VCC_I/O

VCC_SOC

3V3_SYS

EN VCCO

EN 0V8

EN VCCAUX

EN GTY

AVCCAUX

EN GTY AVTT

R34UZ0015EU0102 Rev.1.02 Page 4

Feb 7, 2024

ISLVERSALDEMO2Z Demonstration Board Manual

1.2 Renesas Power Management Solution

The most prominent power supply rail for the AMD Xilinx Versal ACAP is the VCC_INT core rail which consumes

up to 100A while delivering 0.8V. This is provided by the Renesas Radiation Hardened Point of Load Regulator

that consist of: (2) ISL73847SEH PWM Controllers, (4) ISL73041SEH GaN FET Drivers, and a ISL70020SEH

40V, 65A, 3.5mΩGaN FET.

Note: On the ISLVERSALDEMO2Z a 4 phase solution is implemented to deliver 100A with a 25A/phase design.

However, the design can be revised to provide 35A/phase for 140A total by changing components to handle a

larger per phase current. See 0.8V/100A Core Rail Design for changing the design to handle 140A.

The other digital and analog rails for the Versal ACAP are provided by the ISL70001ASEH and ISL73007SEH

Integrated FET Synchronous Buck Regulators. The DDR4 memory VDDQ and VTT rails external to the Versal

ACAP is powered with the ISL70005SEH Synchronous Buck Regulator + Source/Sink LDO.

The power sequencing, which is critical for the Full Power Management operation of the AMD Xilinx Versal ACAP,

is handled by the ISL70321SEH quad sequencer. Table 2 shows the full list of Renesas Radiation Hardened

Power Management parts used in the ISLVERSALDEMO2Z.

Table 1. AMD Xilinx Versal ACAP AI Core VC1902 Power Management Specifications

Power

Sequencing Rail Voltage Rail Name Current

Demand DC Tol AC Tol Renesas Solution

5.0V 5V0_SYS 35A ±5%

(1) ISL73847SEH +

(2) ISL73041SEH +

(8) ISL70020SEH

3.3V 3V3_SYS 3A ±3% ISL70003ASEH

1.8V, 2.5V or

3.3V

VCCO_500,

VCCO_501,

VCCO_502,

VCCO_503,

VCCO_HDIO

3A ±1%

+3%/-5% for

3.3V

±5%

otherwise

ISL73007SEH

1.0V to 1.5V VCCO_XPIO 3A ±1% ±5% ISL73007SEH

0.8V or 0.88V VCC_PSFP 1.5A ±1% ±17mV ISL73007SEH

0.8V or 0.88V VCC_SOC, VCC_IO 3.5A ±1% ±17mV ISL70001ASEH

0.8V or 0.88V VCC_PMC 0.35A ±1% ±17mV ISL73007SEH

0.8V or 0.88V VCC_PSLP 0.3A ±1% ±17mV ISL73007SEH

0.8V or 0.88V VCCINT, VCC_RAM 100A ±1% ±17mV

(2) ISL73847SEH +

(4) ISL73041SEH +

(12) ISL70020SEH

1.5V VCCAUX 4.2A ±1% ±2% ISL70001ASEH

1.5V VCCAUX_SMON,

VCCAUX_PMC 0.35A ±1% ±2% ISL73007SEH

0.88V VGTY_AVCC 1.7A ±2% 10mVpp ISL73007SEH

5 1.5V VGTY_AVCCAUX 0.1A ±2% 10mVpp ISL73007SEH

6 1.2V VGTY_AVTT 2.8A ±2% 10mVpp ISL73007SEH

71.2V/0.6V

DDR_VDDQ,

DDR_VTT 3A/1A ±5% ISL73005SEH

7 2.5V DDR_VPP 1A ±5% ISL73007SEH

R34UZ0015EU0102 Rev.1.02 Page 5

Feb 7, 2024

ISLVERSALDEMO2Z Demonstration Board Manual

1.3 Adjustable Output Voltages

The AMD Xilinx Versal ACAP specifies different operating voltage on certain digital rails; for example at different

Versal speed grades certain 0.8V rails must be operated at 0.88V. Also, the VCCO_XPIO and VCCO_50x rails

can be set for different digital logic I/O levels required by the user.

The ISLVERSALDEMO2Z includes the necessary jumpers to change the feedback resistors to set the different

output voltage.

The VCCO 50x rail can be adjusted for 1.8V, 2.5V or 3.3V. See Table 3 .

The VCCO XPIO rail can be adjusted for 1.0V, 1.2V, or 1.5V. See Table 4.

Table 2. Renesas Radiation Hardened parts used on ISLVERSALDEMO2Z

Device Name Description Used For

ISL73847SEH 12V PWM Dual Phase Controller

5V System Rail

0.8V VCC_INT Core Rail

ISL73041SEH 12V GaN Half Bridge Driver

ISL70020SEH 40V, 65A, 3.5mΩGaN FET

ISL70001ASEH 5V, 6A Integrated FET Synchronous Buck VCC SOC I/O Rail,

VCC Aux Rail

ISL70003ASEH 12V, 9A Integrated FET Synchronous Buck 3.3V System Rail

ISL73007SEH 12V, 3A Integrated FET Synchronous Buck Various Digital

and Analog Rails

ISL70005SEH 5V, 3A Synchronous Buck + 1A Source and Sink LDO DDR4 Memory Supply Rails

ISL70321SEH Quad Channel Supply Sequencer Supply Rail Sequencing and Monitoring

ISL70218SEH Dual 36V Precision Rail to Rail Output Operational Amplifier Buffer for DDR VREF

Table 3. VCCO_50x Adjustments

VOUT Jumper Status

1.8V Both Open

2.5V Jumper JP1051

3.3V Jumper JP1052

Table 4. VCCO_XPIO Adjustments

VOUT Jumper Status

1.0V Both Open

1.2V Jumper JP1101

1.5V Jumper JP1102

R34UZ0015EU0102 Rev.1.02 Page 6

Feb 7, 2024

ISLVERSALDEMO2Z Demonstration Board Manual

The VCC PSFP, VCC SOC I/O, VCC PMC and VCC PSLP rails can be adjusted for 0.8V or 0.88V. See Tab l e 5 .

1.4 Output Voltage Monitor Test Points and Load Transient Generators

The ISLVERSALDEMO2Z provides test points for monitoring the output voltage and terminals to apply an external

load current. Certain output rails also provide an onboard transient load generator for a step load. Table 6

summarizes output rail monitoring, test points, and load transient generator input control for the supply rails.

The transient load generator comprises a FET driver controlling a common source NFET that pulls a load resistor

to GND to provide a transient load to the supply rail. The ISL73847_VCCINT 0.8V core rail uses an

ISL71040MRTZ GaN FET driver, while all other load generators use the HIP2211FBZ half-bridge driver. In both

cases, a 0V-5V logic control signal is used to switch the transient load where 0V turns the load off, and 5V turns

the load on. Figure 3 through Figure 8 show the input connection to the transient load generator control. The load

comprises multiple parallel 2W-rated, 2512-sized resistors. The transient load generator is intended for pulse load

operation only where the frequency and duty cycle of the load do not exceed the power dissipation of the

resistors.

Table 5. VCC PSFP, VCC SOC I/O, VCC PMC and VCC PSLP Rail Adjustments

VOUT Jumper Status VCC PSFP VCC SOC I/O VCC PMC VCC PSLP

0.8V Jumper Open

JP452 JP1002 JP551 JP351

0.88V Jumper Short

Table 6. Output Rail Test Points and Transient Load Control Input Connection

ISLVERSALDEMO2Z Node

Name

Oscilloscope Test Point

(2pin jumper)

DC Test Point/External Load

Access (VOUT/GND)

Transient Load

Generator Control

ISL73847_5V0_SYS TP701

ISL70003A_3V3_SYS TP501 P501/P502

ISL73007_VCCO_50x TP1051 P1051/P1052

ISL73007_VCCO_XPIO TP1101 P1101/P1102 JP1104

ISL73007_VCC_PSFP TP451 P451/P452 JP453

ISL70001A_VCC_SOC/IO TP1001 P1001/P1002 JP1003

ISL73006_VCC_PMC TP551 P551/P552

ISL73006_VCC_PSLP TP351 P351/P352

ISL73847_VCCINT TP1 TERM1/TERM2 TP22

ISL70001A_VCCAUX TP901 P901/P902 JP902

ISL73006_VCCAUX_SMON/PMC TP951 P951/P952

ISL73007_GTY_AVCC TP251 P251/P252

ISL73006_GTY_AVCCAUX TP401 P401/P402

ISL73007_GTY_AVTT TP201 P201/P202 JP201

ISL73005_DDR_VDD TP801 P801/P802

ISL73005_DDR_VTT TP802 P803/P804

ISL73006_DDR_VPP TP851 P851/P852

R34UZ0015EU0102 Rev.1.02 Page 7

Feb 7, 2024

ISLVERSALDEMO2Z Demonstration Board Manual

Figure 3. ISL73007_VCCO_XPIO Load Generator Input Orientation

Figure 4. ISL73007_VCC_PSFP Load Generator Input Orientation

GND IN

R34UZ0015EU0102 Rev.1.02 Page 8

Feb 7, 2024

ISLVERSALDEMO2Z Demonstration Board Manual

Figure 5. ISL70001A_VCC_SOC_IO Load Generator Input Orientation

Figure 6. ISL73847_VCC_INT Load Generator Input Orientation

GND

R34UZ0015EU0102 Rev.1.02 Page 9

Feb 7, 2024

ISLVERSALDEMO2Z Demonstration Board Manual

Figure 7. ISL70001A_VCC_AUX Load Generator Input Orientation

Figure 8. ISL73007_GTY_AVTT Load Generator Input Orientation

GND

GNDIN

R34UZ0015EU0102 Rev.1.02 Page 10

Feb 7, 2024

ISLVERSALDEMO2Z Demonstration Board Manual

1.5 0.8V/100A Core Rail Design

The 0.8V/100A core rail is delivered by the discrete design of (2) ISL73847SEH PWM Controllers, (4)

ISL73041SEH GaN FET Drivers, and (12) ISL70020SEH 40V GaN FETs. Each PWM Controller is a dual-phase

IC; therefore, the design is a 4-phase solution. Each ISL73847SEH controller operates its two phases at 180

degrees phase shift. Using an external clock with a 50% duty cycle and an inverted and non-inverted input to the

SYNC-I pins of the ISL73847SEH provides the 90 degrees phase shift needed for 4-phase operation. Each phase

delivers 25A RMS for a total 100A solution.

The external clock solution is implemented with an ISL71041MRTZ Current Mode PWM Controller. Timing is

made through the RTCT pin, which provides a square wave clock signal at the OUT pin. The inverted clock output

is generated by putting the clock signal into the ISL71040MRTZ GaN FET Driver, which offers an INB input that

provides the inverted clock signal at OUTH/OUTL. While the 2MHz clock generated by the ISL71041MRTZ works

under a nominal case, it cannot be guaranteed over full operational range. Renesas recommends using a

dedicated clock generator instead. The ISL71040MRTZ GaN FET Driver can still be used to generate the inverted

clock signal.

If the full 135A specified by the AMD Xilinx Versal ACAP specification is required, modify the design to increase

the per-phase current to 35A for a total 140A solution. Make the following changes to the ISLVERSALDEMO2Z

board:

Figure 9. Schematic of Transient Load Generator FET Drivers

Figure 10. External Synchronized Clock Generator Circuit

R31

DNP

R57

VDD

INB

VSS

VDRV

VSSP

OUTL

OUTH

ISL71040MRTZ

4 5

R32

C33

4.7UF

C35

0.15UF

R58

R34

C34

0.15UF

C164

4.7UF

TP22

+12V_HK

UNNAMED_111_ISL71040M_I16_PIN2

UNNAMED_111_ISL71040M_I16_PIN6

UNNAMED_111_ISL71040M_I16_PIN7

UNNAMED_111_ISL71040M_I16_PIN8

UNNAMED_111_SMRES_I22_B

UNNAMED_111_SMRES_I66_B

C1112

10UF

JP1104

1 2

C1113

0.1UF

VDD

HS HI

VSS

U1102

HIP2211FBZ

4 5

+12V_HK

UNNAMED_113_H IP221011_I21_PI N3

UNNAMED_113_H IP221011_I21_PI N5

OUT

C160

4.7UF

C156

OPEN

TP3

C155

OPEN

VDD

INB

VSS

VDRV

VSSP

OUTL

OUTH

U108

ISL71040MRTZ

4 5

TP2

R53

R26

910

C159

0.15UF

VREF

VDD

OUT

GNDRTCT

COMP

U107

ISL71041MRTZ

4 5

R25

1.2K

C151

0.15UF

C153

0.15UF

C157

4.7UF

C152

10PF

R33

11K

R47

TP5

R50

DNP

C154

1UF

C158

0.15UF

TP4

+12V_HK

SYNC-I

SYNC-I_2

UNNAMED_110_ISL71040M_I 70_PIN3 UNNAMED _110_ISL71040M_I70_PIN6

UNNAMED_110_ISL71040M_I 70_PIN7

UNNAMED_110_ISL71040M_I 70_PIN8UNNAMED_110_ISL71041M_I 82_PIN1

UNNAMED_110_ISL71041M_I 82_PIN4

UNNAMED_110_SMCAP_I75_B

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