Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

575-4 Datasheet(PDF) 2 Page - Intersil Corporation

Part # 575-4
Description  ISL8225MEVAL4Z Dual 15A/Optional 30A Cascadable Evaluation Board Setup Procedure
Download  9 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

575-4 Datasheet(HTML) 2 Page - Intersil Corporation

  575-4 Datasheet HTML 1Page - Intersil Corporation 575-4 Datasheet HTML 2Page - Intersil Corporation 575-4 Datasheet HTML 3Page - Intersil Corporation 575-4 Datasheet HTML 4Page - Intersil Corporation 575-4 Datasheet HTML 5Page - Intersil Corporation 575-4 Datasheet HTML 6Page - Intersil Corporation 575-4 Datasheet HTML 7Page - Intersil Corporation 575-4 Datasheet HTML 8Page - Intersil Corporation 575-4 Datasheet HTML 9Page - Intersil Corporation  
Zoom Inzoom in Zoom Outzoom out
 2 / 9 page
background image
Application Note 1793
2
AN1793.1
December 6, 2012
3. Make sure that the setup is connected correctly. Turn on the
power supply. If the board is working properly, the green LED
will illuminate; if not, the red LED will illuminate (recheck the
wire/jumper connections in this case). Measure the output
voltages, VOUT1, which should be at 1.2V and VOUT2, which
should be at 1.5V
4. If different output voltages are desired, board resistors can be
exchanged to provide the desired VOUT. Please refer to Table 1
for R2/R4 resistor values, which can be used to produce
different output voltages.
For 12V VIN and VOUT more than 1.5V, the switching frequency
will need to be adjusted, as shown in Table 1. The resistor RFSET
can be adjusted for the desired frequency. No frequency
adjustments are necessary for VOUT below 1.5V. For 5V VIN, the
frequency does not need to be adjusted and the module default
frequency can be used at any allowed VOUT. If the output voltage
is set to more than 1.8V, the output current will need to be
derated to allow for safe operation. Please refer to the derating
curves in the ISL8225M datasheet.
Optional Paralleled Single Output Mode
1. To set up the parallel mode, short JP1 (ENC), JP2 (VMON) and
JP3 (COMP) with a jumper. To set up 180° interleaving phase
between 2 channels, short the MODE pin and GND pin of JP6
with a jumper.
2. Remove R9 and R13. Change R14 to 0Ω. Change R18 and
R19 to 0Ω. Short VOUT1 to VOUT2 using short wires or copper
straps. Add C2 for a 470pF capacitor.
3. Connect a power supply capable of sourcing at least 5A to the
inputs BA7 (VIN1), BA8 (GND), BA3 (VIN2) and BA4 (GND) of
the ISL8225MEVAL4Z evaluation board, with a voltage
between 4.5V to 20V. VIN1 and VIN2 need to be shorted
together.
4. Connect an electronic load or the device to be powered to the
outputs BA5 (VOUT1) and BA6 (GND) of the board. All
connections, especially the low voltage, high current VOUT
lines, should be able to carry the desired load current and
should be made as short as possible.
5. Make sure the setup is connected correctly prior to applying any
power to the board. Adjust the power supply to 12V and turn on
the input power supply. If the board is working properly, the green
LED will illuminate; if not, the red LED will illuminate (recheck the
wire/jumper connections in this case). Measure the output
voltages, VOUT1, which should be at 1.2V.
6. Apply any load that is less than 30A for normal steady state
operation. Refer to Table 1 to change the output voltage by
changing resistor R2.
Optional Cascadable Mode
Cascadable mode is needed when multiple evaluation boards
are used for paralleling or multiple output use. To demo the
parallel features, it is recommended to use ISL8225MEVAL2Z
6-phase evaluation board for an easy and efficient setup (see
AN1789). Otherwise, follow the steps shown below:
1. In order to generate CLKOUT at a shifted phase clock signal,
the control loop of VOUT2 needs to be disabled by connecting
VSEN2- to VCC.
2. Program MODE and VSEN2+ pin voltages to set the CLKOUT
signal and the shifted degrees between two phases on the
board (refer to Table 3).
3. Use a coaxial cable to connect CLKOUT (J5) to SYNC (J2) of the
next evaluation board, which can be programed for parallel or
dual output use.
4. If the second board is programed for parallel use, the ISHARE
pins of the first and second boards need to be tied together.
Using two twisted wires, short two different jumpers of JP7
(ISHARE/SGND) on two evaluation boards. Add 1nF
capacitors of C14 for different boards to decouple the noise.
5. If the third board is used in cascadable mode, the second
board can only be used in the parallel mode to generate the
CLKOUT signal for the SYNC pin on the third board.
6. Follow the instructions from Steps 1 through 5 for more
cascadable boards.
Evaluation Board Information
The evaluation board size is 114.3mm x 76.2mm. It is a 4-layer
board, containing 2-ounce copper on the top and bottom layers
and 1-ounce copper on all internal layers. The board can be used
as a dual 15A reference design. Refer to “Layout” on page 6. The
board is made of FR4 material and all components, including the
solder attachment, are lead-free.
Thermal Considerations and Current Derating
For high current applications, board layout is very critical in order
to make the module operate safely and deliver maximum
allowable power. To carry large currents, the board layout needs
to be designed carefully to maximize thermal performance. To
achieve this, select enough trace width, copper weight and the
proper connectors.
This evaluation board is designed for running dual 15A at room
temperature without additional cooling systems needed.
TABLE 1. VALUE OF BOTTOM RESISTOR (TOP RESISTOR R1,
R3 = 1kΩ) AND FREQUENCY SELECTION FOR DIFFERENT
OUTPUT VOLTAGES
VOUT
(V)
R2 /R4
(
Ω)
FREQUENCY
(kHz)
RFSET (Ω)
(VIN = 12V)
1.0
1500
DEFAULT
OPEN
1.2
1000
DEFAULT
OPEN
1.5
665
DEFAULT
OPEN
2.5
316
650
249k
3.3
221
800
124k
5.0
137
950
82.5k
5.5
121
950
82.5k
TABLE 2. BOARD CONFIGURATION FOR SINGLE OUTPUT 30A
APPLICATION
ENC
VMON
MODE
COMP
R9
R13
R14
Dual
OPEN
OPEN
OPEN
OPEN
0
0
OPEN
Single
ON
ON
ON
ON
OPEN
OPEN
0


Similar Part No. - 575-4

ManufacturerPart #DatasheetDescription
logo
Vishay Siliconix
575-4 VISHAY-575-4 Datasheet
1Mb / 28P
   15 A microBUCK SiC401A/B Integrated Buck Regulator with Programmable LDO
Rev. C, 03-Sep-12
575-4 VISHAY-575-4 Datasheet
648Kb / 26P
   microBUCK SiC403 6 A, 28 V Integrated Buck Regulator with Programmable LDO
Rev. C, 19-Mar-12
logo
Texas Instruments
575-4 TI1-575-4 Datasheet
574Kb / 13P
[Old version datasheet]   DRV411EVM Users Guide
logo
Vishay Siliconix
575-4K-ND VISHAY-575-4K-ND Datasheet
632Kb / 10P
   Selectable frequency from 200 kHz to 1 MHz with an external resistor
Revision: 17-Nov-14
More results

Similar Description - 575-4

ManufacturerPart #DatasheetDescription
logo
Intersil Corporation
ISL8225MEVAL3Z INTERSIL-ISL8225MEVAL3Z Datasheet
1Mb / 7P
   ISL8225MEVAL3Z 30A, Single Output Evaluation Board Setup Procedure
AN1077 INTERSIL-AN1077 Datasheet
931Kb / 16P
   ISL6244EVAL1 Multi-phase Evaluation Board Setup Procedure
ISL8225MEVAL2Z INTERSIL-ISL8225MEVAL2Z Datasheet
4Mb / 12P
   ISL8225MEVAL2Z 6-Phase, 90A Evaluation Board Setup Procedure
logo
Silicon Laboratories
AN651 SILABS-AN651 Datasheet
1,014Kb / 60P
   EVALUATION BOARD TEST PROCEDURE
AN646 SILABS-AN646 Datasheet
1Mb / 46P
   Si477X EVALUATION BOARD TEST PROCEDURE
logo
ON Semiconductor
NCP1521BEVB ONSEMI-NCP1521BEVB Datasheet
148Kb / 1P
   Test Procedure for the NCP1521B Evaluation Board
5/31/2007
logo
Sanyo Semicon Device
LV8804FVGEVB SANYO-LV8804FVGEVB Datasheet
147Kb / 4P
   Test Procedure for the LV8804FVGEVB Evaluation Board
3/26/2012
logo
Silicon Laboratories
AN388 SILABS-AN388 Datasheet
2Mb / 68P
   Si470X/1X/2X/3X/4X EVALUATION BOARD TEST PROCEDURE
logo
Monolithic Power System...
EVM3684-RU-00A MPS-EVM3684-RU-00A Datasheet
497Kb / 7P
   18V 15A Step-Down Power Module Evaluation Board
logo
Intersil Corporation
ISL8225M INTERSIL-ISL8225M Datasheet
1Mb / 28P
   Dual 15A/Single 30A Step-Down Power Module
More results


Html Pages

1 2 3 4 5 6 7 8 9


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com