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Renesas Intersil ISL68201-99135DEMO1Z User Manual
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Renesas Intersil ISL68201-99135DEMO1Z User Manual

Renesas Intersil ISL68201-99135DEMO1Z User Manual

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ISL68201-99135DEMO1Z
Demonstration Board User Guide
The
ISL68201
is a single-phase synchronous buck PWM
controller featuring Intersil's proprietary R4™ Technology,
which has extremely fast transient performance, accurately
regulated frequency control, and all internal compensation.
The ISL68201 supports a wide 4.5V to 24V input voltage range
and a wide 0.5V to 5.5V output range. It includes
programmable functions and telemetries for easy use and
high system flexibility using the SMBus, PMBus, or I
interface. Refer to the
ISL68201
The
ISL99135B
is DrMOS power stage compatible with
Intersil's 5V PWM controllers (such as the ISL6398, ISL637x,
ISL633x, ISL636x, ISL9585x, and ISL68201). They use a DCR
sensing network and associated thermal compensation.
Light-load efficiency is supported through a dedicated FCCM
control pin. An industry leading thermally enhanced 3.5x5
QFN 24 Ld package allows minimal overall PCB real estate.
The ISL68201-99135DEMO1Z is a 6-layer board demonstrating
a compact 13mmx13mm 20A synchronous buck converter.
The board can be used to evaluate transient performance, fault
protections, DC/AC regulations, PMBus programming, power
sequencing, margining, and other features.
The PMBus dongle (ZLUSBEVAL3Z, USB-to-PMBus™ adapter),
and USB cable are included in the demonstration kit. Intersil's
PowerNavigator™ evaluation software can be installed from
Intersil's website and be used to evaluate the full PMBus
functionality of the part using a PC running Microsoft Windows.
Ordering Information
PART NUMBER
ISL68201-99135DEMO1Z ISL68201-99135 Demonstration Kit
(demonstration board, dongle, USB cable)
2
I
C/
SMBus/
PMBus
PGOOD
EN
VCC
UG088 Rev.1.00
Aug 24, 2017
2
C
datasheet for more details.
DESCRIPTION
1.0µF
VCC
PVCC
7VLDO
VIN
1.0µF
SALERT
SCL
FCCM
SDA
PGOOD
PWM
EN
LGIN
IOUT
VCC
NTC
4
PROG1-4
CSEN
CSRTN
VSEN
RGND
GND
FIGURE 1. ISL68201-99135DEMO1Z SIMPLIFIED SCHEMATIC
USER'S MANUAL
Key Features
• 20A synchronous buck converter with PMBus control
• On-board transient load with adjustable di/dt
• Configurable through resistor pins
• Cascadable PMBus connectors
• Integrated LDOs for a single rail solution
• Enable switch and power-good indicator
• All ceramics solution with SP capacitor footprint option
Target Specifications
• V
= 4.75V to 14.5V
IN
• V
= 1V/20A full load
OUT
• f
= 500kHz
SW
• Peak efficiency:
- 88.5% at 13A/1V
OUT
- 95.1% at 7A/2.5V
OUT
• Output regulation: 1V ±8mV
• I/O capacitor rating: C
IN
• Compact size: 13mmx13mm
• With or without PMBus, SMBus, and I
Related Literature
• For a full list of related documents, visit our website
-
ISL68201
and
ISL99135B
- Intersil's
PowerNavigator
4.7µF
4.75 TO 24V
ISL99135B
BOOT
FCCM
UG
PWM
PHASE
LG
100
10k
NTC
VCC
1.54k
NCP18XH103J03RB
0.1µF
BETA = 3380
Rev.1.00
Aug 24, 2017
/12V
IN
/5V
IN
- 16V, C
- 4V
OUT
2
C capability
product pages
User Guide
V
< 7VLDO
OUT
-
1.7V
0.5V TO 5.5V
Page 1 of 23
UG088

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Summary of Contents for Renesas Intersil ISL68201-99135DEMO1Z

  • Page 1 USER’S MANUAL ISL68201-99135DEMO1Z UG088 Demonstration Board User Guide Rev.1.00 Aug 24, 2017 Key Features ISL68201 is a single-phase synchronous buck PWM controller featuring Intersil’s proprietary R4™ Technology, which has extremely fast transient performance, accurately • 20A synchronous buck converter with PMBus control regulated frequency control, and all internal compensation.
  • Page 2 ISL68201-99135DEMO1Z FIGURE 2. DEMONSTRATION BOARD TOP VIEW FIGURE 3. DEMONSTRATION BOARD BOTTOM VIEW Demonstration Board OPERATION commands can be used for software operational control. Description Furthermore, an on-board transient load, as shown on Figure 4 The ISL68201-99135DEMO1Z provides all the circuitry required on page 3, with di/dt and load step amplitude is controlled by a to demonstrate the key features of the ISL68201.

  • Page 3: Load Transient

    ISL68201-99135DEMO1Z PMBus Operation ISL68201 does not have NVM to store the operational configuration, which can, however, be set by the resistor 1. Connect the supplied Intersil dongle to J8. programming pins (PROG1-4) or programmed by the serial bus 2. Connect the supplied USB cable from the computer to the master before powering up.

  • Page 4: Design Modifications

    ISL68201-99135DEMO1Z Design Modifications Any modifications to the design will require new L/DCR matching For the 5V input voltage applications with a 4.5V < V < 5.5V for a different inductor, a divider on the PROG pins for a different requirement, the “VIN”, “VCC”, “PVCC”, and “7VLDO” pins should operational configuration, R for OCP, an I network for...
  • Page 5 ISL68201-99135DEMO1Z Design and Layout TABLE 2. DESIGN AND LAYOUT CHECKLIST (Continued) Considerations NOISE NAME SENSITIVITY DESCRIPTION To ensure a first pass design, the schematics design must be SCL, SDA A 50kHz to 1.25MHz signal when the SMBus, done correctly and the board must be carefully laid out. PMBus, or I C is sending commands.
  • Page 6 ISL68201-99135DEMO1Z TABLE 2. DESIGN AND LAYOUT CHECKLIST (Continued) TABLE 3. TOP LAYOUT TIPS NOISE NUMBER DESCRIPTION NAME SENSITIVITY DESCRIPTION The layer next to the controller (top or bottom) should be a PROG1-4 A resistor divider must be referenced to the ground layer.
  • Page 7 ISL68201-99135DEMO1Z Schematics FIGURE 6. ISL68201-99135DEMO1Z 1V AT 20A BUCK SOLUTION SCHEMATICS (1 OF 2)
  • Page 8 ISL68201-99135DEMO1Z Schematics (Continued) DNP these and leave the holes for probes R12 = 9.09K for typical POR = 10.08V/9.12V; R12 = 24.9K for typical POR = 4.21V/3.81V VOUT PGOOD LED LIGHT Place Connection of VOUT and GND to the Remote Sensing DOWN VOUT STATUS Points (Say center...

  • Page 9: Bill Of Materials

    ISL68201-99135DEMO1Z Bill of Materials REFERENCE DESIGNATOR DESCRIPTION PCB FOOTPRINT MANUFACTURER PART NUMBER R4 Wrapper QFN24_157X157_197_EPC INTERSIL ISL68201IRZ-REVD DrMOS 35A DrMOS PWR MODULE QFN, 24LD, 3.5x5 INTERSIL ISL99135BDRZ CIN1 270µF/16V/8x9/10mΩ CAPR_315X275_150_P SANYO 16SEPC270MX 4.7µF/6.3V/X5R SM0603 VENKEL C0603X5R6R3-475KNE C2, C3, C4 1.0µF/25V/X5R SM0402 C1005X5R1C105K050BC 22nF/25V/X7R...
  • Page 10 ISL68201-99135DEMO1Z Bill of Materials (Continued) REFERENCE DESIGNATOR DESCRIPTION PCB FOOTPRINT MANUFACTURER PART NUMBER Female Banana Jack, Black 111-07xx-001 JOHNSON 111-0703-001 COMPONENTS Female Banana Jack, Red 111-07xx-001 JOHNSON 111-0702-001 COMPONENTS J8, J9 CONN-HEADER, 2x3, BRKAWY, CONN6 SAMTEC TSW-103-08-T-D-RA 2.54mm, TIN J10, J11 CONN-SOCKET STRIP, TH, 2x3, CONN6 SAMTEC...

  • Page 11: Performance Data

    ISL68201-99135DEMO1Z Performance Data 0.04 0.02 0.00 SLOPE = 1 -0.02 -0.04 -0.06 -0.08 -0.10 -0.12 -0.14 -0.16 LOAD CURRENT (A) FIGURE 8. TYPICAL DIGITAL OUTPUT CURRENT VOUT = 0.8V VOUT = 1.0V VOUT = 0.8V VOUT = 1.0V VOUT = 1.2V VOUT = 1.5V VOUT = 1.2V VOUT = 1.5V...
  • Page 12 ISL68201-99135DEMO1Z Performance Data (Continued) VOUT = 0.8V VOUT = 1.0V VOUT = 0.8V VOUT = 1.0V VOUT = 1.2V VOUT = 1.5V VOUT = 1.2V VOUT = 1.5V VOUT = 1.8V VOUT = 2.5V VOUT = 1.8V VOUT = 2.5V LOAD CURRENT (A) LOAD CURRENT (A) FIGURE 13.
  • Page 13 ISL68201-99135DEMO1Z Performance Data (Continued) 100mV/DIV 100mV/DIV 10V/DIV 10V/DIV 100µs/DIV 100µs/DIV FIGURE 19. V RAMP-UP FROM 0.5V TO 1V IN PWM MODE FIGURE 20. V RAMP-DOWN FROM 1V TO 0.5V IN PWM MODE (CH1-VOUT, CH2-PHASE) (CH1-VOUT, CH2-PHASE) 100mV/DIV 100mV/DIV 10V/DIV 10V/DIV 100µs/DIV 100µs/DIV FIGURE 21.
  • Page 14 ISL68201-99135DEMO1Z Performance Data (Continued) 20mV/DIV 20mV/DIV 500mV/DIV 500mV/DIV 10V/DIV 10V/DIV 5µs/DIV 5µs/DIV FIGURE 25. STEP RESPONSE TO LOAD STEP AT PWM MODE, FIGURE 26. STEP RESPONSE TO LOAD RELEASE AT PWM MODE, = 1V, f = 400kHz, LOAD PROFILE: 0.25A TO = 1V, f = 400kHz, LOAD PROFILE: 0.25A TO 12.75A AT 25A/µs (CH1-VOUT, CH2-LOAD, CH3-PHASE)
  • Page 15 ISL68201-99135DEMO1Z Performance Data (Continued) 5V/DIV 2V/DIV 5V/DIV 5V/DIV 500mV/DIV 500mV/DIV 10V/DIV 10V/DIV 20ms/DIV 200µs/DIV FIGURE 31. OVER-TEMPERATURE PROTECTION AT 1A LOAD FIGURE 32. POWER-DOWN AT V = 1V, 1A LOAD (CH1-VOUT, CH2-PGOOD, CH3-PHASE, CH4-NTC) (CH1-VOUT, CH2-PGOOD, CH3-PHASE, CH4-EN) FIGURE 33. THERMAL IMAGE OF DEMONSTRATION BOARD AT FIGURE 34.
  • Page 16 ISL68201-99135DEMO1Z ISL68201-99135DEMO1Z Board Layout FIGURE 35. PCB - TOP ASSEMBLY UG088 Rev.1.00 Page 16 of 23 Aug 24, 2017...
  • Page 17 ISL68201-99135DEMO1Z ISL68201-99135DEMO1Z Board Layout (Continued) FIGURE 36. PCB - TOP LAYER UG088 Rev.1.00 Page 17 of 23 Aug 24, 2017...
  • Page 18 ISL68201-99135DEMO1Z ISL68201-99135DEMO1Z Board Layout (Continued) FIGURE 37. PCB - INNER LAYER 2 (TOP VIEW) UG088 Rev.1.00 Page 18 of 23 Aug 24, 2017...
  • Page 19 ISL68201-99135DEMO1Z ISL68201-99135DEMO1Z Board Layout (Continued) FIGURE 38. PCB - INNER LAYER 3 (TOP VIEW) UG088 Rev.1.00 Page 19 of 23 Aug 24, 2017...
  • Page 20 ISL68201-99135DEMO1Z ISL68201-99135DEMO1Z Board Layout (Continued) FIGURE 39. PCB - INNER LAYER 4 (TOP VIEW) UG088 Rev.1.00 Page 20 of 23 Aug 24, 2017...
  • Page 21 ISL68201-99135DEMO1Z ISL68201-99135DEMO1Z Board Layout (Continued) FIGURE 40. PCB - INNER LAYER 5 (TOP VIEW) UG088 Rev.1.00 Page 21 of 23 Aug 24, 2017...
  • Page 22 ISL68201-99135DEMO1Z ISL68201-99135DEMO1Z Board Layout (Continued) FIGURE 41. PCB - BOTTOM LAYER (TOP VIEW) UG088 Rev.1.00 Page 22 of 23 Aug 24, 2017...
  • Page 23 ISL68201-99135DEMO1Z ISL68201-99135DEMO1Z Board Layout (Continued) FIGURE 42. PCB - BOTTOM ASSEMBLY (TOP VIEW) © Copyright Intersil Americas LLC 2016-2017. All Rights Reserved. All trademarks and registered trademarks are the property of their respective owners. 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.
  • Page 24 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Renesas Electronics ISL68201-99135DEMO1Z...