Intersil ISL68137-61P-EV1Z Guía de configuración

October 10, 2016

UG097.0

ISL68137-61P-EV1Z Evaluation Board Quick Start User

Guide

Description

The ISL68137-61P-EV1Z evaluation board provides users a

method of evaluating the ISL68137 digital multiphase device.

Included on the board is a high-performance transient load

generator capable of replicating the type of high di/dt loads

typical of today’s high current ASICs.

The ISL68137 is combined with the ISL99227 Smart Power

Stage (SPS) to provide a highly efficient power solution

capable of delivering up to 270A.

While the user may opt to evaluate the solution based on the

Intersil default configuration, custom configurations are easily

created using PowerNavigator™.

Specifications

This board has been configured and optimized for the following

operating conditions:

• 0.6V to 1.8V output range. Up to 3.05V with BOM change

• 6+1 phase: 270A + 30A

• Input range from 5V to 16V

Key Features

•0.5%V

OUT regulation accuracy

• PMBus interface, AVSBus interface

•3%I

OUT telemetry accuracy

• Onboard transient load to facilitate testing

• ATX or bench supply connections for input sources

Related Literature

• For a full list of related documents please visit our website

-ISL68137 product page

Ordering Information

PART NUMBER DESCRIPTION

ISL68137-61P-EV1Z ISL68137 evaluation board, 6+1 dual output

(EVB, PMBus adapter, AVSBus adapter, two USB

cables)

User Guide 097

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Intersil (and design) and PowerNavigator are trademarks owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

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FIGURE 1. ISL68137-61P-EV1Z BLOCK DIAGRAM

VCC

VCCS

4.7µF

TMON0

RGND0

VSEN0

SALRT

SDA

SCL

4.7µF

PWM

REFIN

TMON

FAULT#

IMON

PVCC

VCC

BOOT

PHASE

SWGND

VIN

0.1µF 2x22µF

12V

PWM

REFIN

TMON

FAULT#

IMON

PVCC

VCC

BOOT

PHASE

VIN

0.1µF 2x22µF

12V

PWM

REFIN

TMON

FAULT#

IMON

PVCC

VCC

BOOT

PHASE

VIN

0.1µF 2x22µF

12V

PWM

REFIN

TMON

FAULT#

IMON

PVCC

VCC

BOOT

PHASE

VIN

0.1µF 2x22µF

12V

PWM

REFIN

TMON

FAULT#

IMON

PVCC

VCC

BOOT

PHASE

VIN

0.1µF 2x22µF

12V

PWM

REFIN

TMON

FAULT#

IMON

PVCC

VCC

BOOT

PHASE

VIN

0.1µF 2x22µF

12V

PWM

REFIN

TMON

FAULT#

IMON

PVCC

VCC

BOOT

PHASE

VIN

0.1µF 2x22µF

12V

PWM0

CSRTN0

CS0

PWM6

CSRTN6

CS6

PWM1

CSRTN1

CS1

PWM2

CSRTN2

CS2

PWM3

CSRTN3

CS3

PWM4

CSRTN4

CS4

PWM5

CSRTN5

CS5

470pF

TMON1

RGND1

VSEN1

470pF

100

ISL99227

COUT

VOUT0

VOUT1

COUT

ISL99227

ISL68137

PG0

EN0

PG1

EN1

VINSEN

0.01µF

10k

40.2k

TWARN

CONFIG

12V

3.3V

GND

AVS_VDDIO

AVS_MDA

AVS_SDA

AVS_CLK

0.1µF

470pF

100

ISL99227

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FIGURE 2. CONNECTIONS

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Functional Description

The ISL68137-61P-EV1Z provides a convenient method to

evaluate the performance of Intersil’s family of digital

multiphase devices and the onboard transient load provides a

realistic way to exercise the regulators outstanding transient

performance. IC details are described in the ISL68137

datasheet.

The ISL68137-61P-EV1Z evaluation board is shown in Figures 8

and 9. The hardware enables are controlled by toggle switches

(SWE1 and SWE2). J4 is provided to interface directly with the

Intersil USB to PMBus dongle provided with the evaluation board.

J104 provides an interface to the Intersil USB to AVSBus dongle.

Input voltage is supplied via the ATX connectors or via bench

supplies using the input connectors provided (J113, J114, 5V).

High current output test lugs allow external loading.

Test points are provided to make efficiency data collection easy.

VINMEAS, OUT0MEAS, and OUT1MEAS provide convenient points

to acquire input and output voltage measurements (Figure 3).

Figures 11 through 15 show performance data typical of the

digital multiphase devices.

Operating Range

This evaluation board is configured to support up to 270A on the

six phase output and up to 30A on the single phase output. Input

voltage range is from 5V to 16V.

Transient Load

The transient load on this board is attached to VOUT1 and is

capable of >100A and >200A/µs for output voltage down to 1V.

It is enabled by installing a jumper on the LH_BIAS header.

Transient load current may be monitored from the I1MON header

at 10mV/A. Note that while the generator is capable of very high

currents, managing the total thermal load is critical. For this

reason, it is advised that the duty cycle of the load is kept <5% or

the temperature on the load generation components is

monitored. Use of a fan will extend the capability of the load.

Transient load waveforms may be controlled using an internal

oscillator or an external oscillator on J17. When using the internal

oscillator, RVAR1 is used to adjust slew rate and RVAR2 is used

to adjust amplitude of the transient load current.

OUT1MON provides a measurement point for Output 1 during

transient load operation. Note that due to proximity to the power

inductor, some oscilloscope probes may pick up a stray magnetic

field. Care must be taken to ensure accurate measurement of

the true output voltage (Figure 4).

FIGURE 3. TEST POINTS

FIGURE 4. MEASUREMENT POINTS

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Schematic and PCB Layout

Guidelines

Intersil provides both a schematic checklist and PCB layout guide

for the digital multiphase IC family. These are available at the

ISL68137 product page. In addition, full schematics, PCB files

and BOM are provided for this evaluation board.

PowerNavigator™

PowerNavigator™ is required for proper evaluation of the digital

multiphase devices. PowerNavigator™ and its User Guide are

provided for download at PowerNavigator™.

Default Configuration Settings

Intersil’s default configurations for this board are provided via the

Intersil website at the ISL68137 product page and as part of the

PowerNavigator™ GUI installation.

Power-Up Guide

1. Set SWE1-SWE2 to the OFF position.

2. Connect PMBus dongle to PC and J4.

3. If AVSBus functionality is desired, connect AVSBus dongle to

PC and J104.

4. Connect input supply and load cables. If using bench supplies,

connect both 5V and 12V.

5. Enable input supplies. If an ATX is used, this is accomplished

with the ATX_ON switch.

6. Launch PowerNavigator™. Device should be discovered by

PowerNavigator™. Select “Open Existing Project” (Figure 5).

7. Select ISL68137-61P-EV1Z and then click “START”.

8. Wait until PowerNavigator™ Power Map is populated and the

telemetry meters are displayed (Figure 6).

9. Use SWE1 and SWE2 to enable desired output (Figure 7).

10. Begin Testing.

FIGURE 5. LAUNCH PowerNavigator™

FIGURE 6. POWER NAVIGATOR DEFAULT VIEW

FIGURE 7. POWER MAP

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ISL68137-61P-EV1Z Evaluation Board

FIGURE 8. TOP SIDE

FIGURE 9. BOTTOM SIDE

VOUT1

GND

VOUT0

INDUCTORS

AND SPS

TRANSIENT

LOAD

AVSBUS

CONNECTOR

PMBUS

CONNECTOR

ATX

12V BENCH

SUPPLY INPUT

INPUT

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Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is

cautioned to verify that the document is current before proceeding.

For information regarding Intersil Corporation and its products, see www.intersil.com

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Typical Performance Curves Unless otherwise noted: VIN = 12V, fSW = 400kHz, APD disabled, TA= +25°C

FIGURE 10. 6-PHASE EFFICIENCY FIGURE 11. DYNAMIC LOAD STEP, 0A TO 100A, di/dt = 100A/μs

FIGURE 12. VOUT RIPPLE, 3-PHASE INTERLEAVE FIGURE 13. AVSBus DYNAMIC VOUT TRANSITIONS

FIGURE 14. SOFT-START RAMP INITIATION FIGURE 15. SOFT-START RAMP COMPLETION

0 50 100 150 200 250

LOAD CURRENT (A)

0.8V VOUT 1.0V VOUT

1.2V VOUT 1.5V VOUT

EFFICIENCY (%)

10µs/DIV

± 3%

DEVIATION

100A STEP AT 100A/µs

TEST CONDITIONS:

VIN = 12V

VOUT = 1V

COUT = ~6900µF

fSW = 400kHz

~6µs RECOVERY TIME

C1 30mV/DIV

C4 400mV/DIV

C1 10mV/DIV

C3 2V/DIV

4µs/DIV

TEST CONDITIONS:

VIN = 12V

VOUT = 1V

COUT = ~6900µF

fSW = 400kHz

C2 2V/DIV

<3mV RIPPLE

NO LOAD

VOUT, 200mV

AVS CLOCK, 2V

200µs/DIV

C1, 100mV

C3, 1V

200µs/DIV

C2, 1V

TEST CONDITIONS:

VIN = 12V, VOUT = 1V

fSW = 500kHz

NO LOAD

MONOTONIC

STARTUP

C1, 200mV

C3, 1V

100µs/DIV

C2, 1V

NO DISCONTINUITY AT

TEST CONDITIONS:

VIN = 12V, VOUT = 1V

fSW = 500kHz, NO LOAD TOP OF RAMP

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