Table of Contents
Advertisement
Quick Links
ISL68201-99125DEMO1Z
Demonstration Board
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
ISL99125B
is a 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. A thermally enhanced 3.5x5 QFN 24 Ld package
allows minimal overall PCB real estate.
The ISL68201-99125DEMO1Z is a 6-layer board demonstrating
a compact 13mmx13mm 16A 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.
Related Literature
• For a full list of related documents, visit our website
-
ISL68201
product page
-
ISL99125B
product page
• Intersil's
PowerNavigator
User Guide
SMBus/
PMBus
PGOOD
VCC
UG086 Rev.2.00
Nov 28, 2017
2
C
datasheet for more details.
1.0µF
VCC
7VLDO
1.0µF
2
I
C/
SALERT
SCL
SDA
PGOOD
EN
EN
IOUT
VCC
4
PROG1-4
CSRTN
GND
FIGURE 1. ISL68201-99125DEMO1Z SIMPLIFIED SCHEMATIC
Key Features
• 16A 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
= 3.3V/16A full load
OUT
• f
= 500kHz
SW
• Peak efficiency:
- 94.4% at 9A/3.3V
- 97.1% at 6A/3.3V
• Output regulation: 3.3V ±0.5%
• I/O capacitor rating: C
Compact size: 13mmx13mm
• With or without PMBus, SMBus, and I
Ordering Information
PART NUMBER
ISL68201-99125DEMO1Z ISL68201-99125 Demonstration Board
4.7µF
PVCC
VIN
ISL99125B
BOOT
FCCM
FCCM
UG
PWM
PWM
PHASE
LG
LGIN
100
10k
NTC
VCC
1.54k
NTC
NCP18XH103J03RB
0.1µF
BETA = 3380
CSEN
VSEN
RGND
USER'S MANUAL
Nov 28, 2017
/12V
/500kHz
OUT
IN
/5V
/400kHz
OUT
IN
- 16V; C
- 6.3V
IN
OUT
2
C capability
DESCRIPTION
(Items shipped: Demonstration board,
dongle, and USB cable)
4.75 TO 24V
-
V
< 7VLDO 1.7V
OUT
0.5V TO 5.5V
Page 1 of 23
UG086
Rev.2.00
Advertisement
Table of Contents
Related Manuals for Renesas ISL68201-99125DEMO1Z
Summary of Contents for Renesas ISL68201-99125DEMO1Z
- Page 1 = 3.3V/16A full load allows minimal overall PCB real estate. • f = 500kHz The ISL68201-99125DEMO1Z is a 6-layer board demonstrating a compact 13mmx13mm 16A synchronous buck converter. The • Peak efficiency: board can be used to evaluate transient performance, fault - 94.4% at 9A/3.3V...
- Page 2 5. Set the ENABLE switch to the “ON” position. 6. Increase the power supply current limit enough to support The ISL68201-99125DEMO1Z board can run by itself without a more than the full load. serial bus communication. The operational configuration is fully programmable using the programming pins (PROG1-4).
-
Page 3: Load Transient
The default programming pins setting of the The on-board transient load can be controlled by a function ISL68201-99125DEMO1Z board can be found at the resistor generator, whose inputs are connected to FG_DRIVE2 and reader table on the lower left corner of FG_GND2. -
Page 4: Design Modifications
ISL68201-99125DEMO1Z Design Modifications application cases with 5V and 3.3V output voltages. Some fine-tuning might be needed depending upon the rework and Any modifications to the design will require new L/DCR matching final layout design. for a different inductor, a divider on the PROG pins for a different For the 5V input voltage applications with 4.5V <... - Page 5 ISL68201-99125DEMO1Z 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 50kHz to 1.25MHz signal when the SMBus, done correctly and the board must be carefully laid out.
- Page 6 ISL68201-99125DEMO1Z 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 ISL68201-99125DEMO1Z Schematics FIGURE 6. ISL68201-99125DEMO1Z 1V AT 20A BUCK SOLUTION SCHEMATICS (1 OF 2)
- Page 8 ISL68201-99125DEMO1Z 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...
-
Page 9: Bill Of Materials
ISL68201-99125DEMO1Z Bill of Materials REFERENCE DESIGNATOR DESCRIPTION PCB FOOTPRINT MANUFACTURER PART NUMBER R4 Wrapper QFN24_157X157_197_EPC Intersil ISL68201IRZ-REVD DrMOS 25A DrMOS PWR MODULE QFN_32P_5x5 Intersil ISL99125BDRZ-T 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... -
Page 10: Pcb Footprint
ISL68201-99125DEMO1Z Bill of Materials (Continued) REFERENCE DESIGNATOR DESCRIPTION PCB FOOTPRINT MANUFACTURER PART NUMBER Female Banana Jack, Red 111-07xx-001 Johnson Components 111-0702-001 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 SSQ-103-02-T-D-RA 2.54mm, TIN... -
Page 11: Performance Data
ISL68201-99125DEMO1Z Performance Data -0.2 -0.4 -0.6 -0.8 LOAD CURRENT (A) FIGURE 8. TYPICAL DIGITAL OUTPUT CURRENT 0.8V 1.0V 0.8V 1.0V 1.2V 1.5V 1.2V 1.5V 1.8V 2.5V 1.8V 2.5V 3.3V 3.3V 5.0V LOAD CURRENT (A) LOAD CURRENT (A) FIGURE 9. EFFICIENCY, V... - Page 12 ISL68201-99125DEMO1Z Performance Data (Continued) 0.8V 1.0V 0.8V 1.0V 1.2V 1.5V 1.2V 1.5V 1.8V 2.5V 1.8V 2.5V 3.3V 3.3V 5.0V LOAD CURRENT (A) LOAD CURRENT (A) FIGURE 13. EFFICIENCY, V = 12V, f = 600kHz FIGURE 14. EFFICIENCY, V = 5V, f...
- Page 13 ISL68201-99125DEMO1Z Performance Data (Continued) : 500mV/DIV : 500mV/DIV PHASE: 5V/DIV PHASE: 5V/DIV 320µs/DIV 320µs/DIV FIGURE 19. V RAMP-UP FROM 0.5V TO 3.3V IN PWM MODE) FIGURE 20. V RAMP-DOWN FROM 3.3V TO 0.5V IN PWM MODE) : 500mV/DIV : 500mV/DIV...
- Page 14 ISL68201-99125DEMO1Z Performance Data (Continued) : 50mV/DIV : 50mV/DIV PHASE: 5V/DIV PHASE: 5V/DIV 10µs/DIV 10µs/DIV FIGURE 25. V RIPPLE IN PFM MODE (V = 3.3V, f = 500kHz, TABLE 4. V RIPPLE IN PFM MODE (V = 3.3V, f = 500kHz, LOAD = 0A) LOAD = 0.25A)
- Page 15 ISL68201-99125DEMO1Z Performance Data (Continued) EN:2V/DIV NTC:1V/DIV PGOOD: 3V/DIV PGOOD: 3V/DIV : 3.0V/DIV VOUT: 1.0V/DIV PHASE:10V/DIV PHASE:10V/DIV 20ms/DIV 200µs/DIV FIGURE 31. POWER-DOWN AT V = 3.3V, 1A LOAD FIGURE 30. OVER-TEMPERATURE PROTECTION AT 1A LOAD (CH1-VOUT, CH2-EN, CH3-PGOOD, CH4-PHASE) FIGURE 32. THERMAL IMAGE OF DEMO BOARD AT 16A LOAD FIGURE 33.
- Page 16 ISL68201-99125DEMO1Z ISL68201-99125DEMO1Z Board Layout FIGURE 34. PCB - TOP ASSEMBLY UG086 Rev.2.00 Page 16 of 23 Nov 28, 2017...
- Page 17 ISL68201-99125DEMO1Z ISL68201-99125DEMO1Z Board Layout (Continued) FIGURE 35. PCB - TOP LAYER (TOP VIEW) UG086 Rev.2.00 Page 17 of 23 Nov 28, 2017...
- Page 18 ISL68201-99125DEMO1Z ISL68201-99125DEMO1Z Board Layout (Continued) FIGURE 36. PCB - INNER LAYER 2 (TOP VIEW) UG086 Rev.2.00 Page 18 of 23 Nov 28, 2017...
- Page 19 ISL68201-99125DEMO1Z ISL68201-99125DEMO1Z Board Layout (Continued) FIGURE 37. PCB - INNER LAYER 3 (TOP VIEW) UG086 Rev.2.00 Page 19 of 23 Nov 28, 2017...
- Page 20 ISL68201-99125DEMO1Z ISL68201-99125DEMO1Z Board Layout (Continued) FIGURE 38. PCB - INNER LAYER 4 (TOP VIEW) UG086 Rev.2.00 Page 20 of 23 Nov 28, 2017...
- Page 21 ISL68201-99125DEMO1Z ISL68201-99125DEMO1Z Board Layout (Continued) FIGURE 39. PCB - INNER LAYER 5 (TOP VIEW) UG086 Rev.2.00 Page 21 of 23 Nov 28, 2017...
- Page 22 ISL68201-99125DEMO1Z ISL68201-99125DEMO1Z Board Layout (Continued) FIGURE 40. PCB - BOTTOM LAYER (TOP VIEW) UG086 Rev.2.00 Page 22 of 23 Nov 28, 2017...
- Page 23 ISL68201-99125DEMO1Z ISL68201-99125DEMO1Z Board Layout (Continued) FIGURE 41. PCB - BOTTOM ASSEMBLY (BOTTOM 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 ISL68201-99125DEMO1Z...
Need help?
Do you have a question about the ISL68201-99125DEMO1Z and is the answer not in the manual?
Questions and answers