ISL8225MEVAL4Z Intersil, ISL8225MEVAL4Z Datasheet

ISL8225MEVAL4Z

Manufacturer Part Number

ISL8225MEVAL4Z

Description

Power Management IC Development Tools Dual 15A Output Eval Board

Manufacturer

Intersil

Type

DC/DC Converters, Regulators & Controllersr

Datasheet

1.ISL8225MEVAL4Z.pdf (9 pages)

Specifications of ISL8225MEVAL4Z

Rohs

yes

Product

Evaluation Boards

Tool Is For Evaluation Of

ISL8225M

Input Voltage

4.5 V to 20 V

Output Voltage

1.2 V, 1.5 V

Output Current

30 A

For Use With

ISL8225M

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ISL8225MEVAL4Z Dual 15A/Optional 30A Cascadable

Evaluation Board Setup Procedure

The ISL8225M is a complete, dual step-down switching mode

DC/DC module. The dual outputs can easily be paralleled for

single-output, high-current use. It is easy to apply this

high-power, current-sharing DC/DC power module to

power-hungry datacom, telecom, and FPGA applications. All

that is needed in order to have a complete, dual 15A design

ready for use are the ISL8225M, a few passive components,

and V

The simplicity of the ISL8225M is its off-the-shelf, unassisted

implementation. Patented current sharing in multi-phase

operation greatly reduces ripple currents, BOM costs, and

complexity. The ISL8225M has a thermally enhanced, compact

17mm x17mm x 7.5mm QFN package that operates at full load

and over-temperature without requiring forced-air cooling. Easy

access to all pins, with few external components, reduces PCB

design to a component layer and a simple ground layer.

This ISL8225MEVAL4Z evaluation board is designed for dual

15A output applications. Optionally, this board can easily be

converted for 30A single output use. Multiple

ISL8225MEVAL4Z boards can be cascadable through the

SYNC and CLKOUT pins to operate with phase shifting, for

paralleling or multiple output use. The input voltage of this

board is 4.5V to 20V and the default outputs on this board are

set at 1.2V and 1.5V.

Related Resources

December 6, 2012

AN1793.1

OUT

setting resistors.

See how-to

video at

intersil.com/

evid03

4.5V TO 20V

1-888-INTERSIL or 1-888-468-3774

FIGURE 1. ISL8225MEVAL4Z BOARD IMAGE

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

Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

Recommended Equipment

• 0V to 20V power supply with at least 5A source current

• Electronic load capable of sinking current up to 30A

• Digital multimeters (DMMs)

• 100MHz quad-trace oscilloscope

Quick Start

For dual output operation, the inputs are BA7 (VIN1), BA8

(GND), BA3 (VIN2) and BA4 (GND). The outputs are BA5

(VOUT1), BA6 (GND), BA1 (VOUT2) and BA2 (GND).

For paralleled single output operation, the inputs are BA7

(VIN1) and BA8 (GND). The outputs are BA5 (VOUT1) and BA6

(GND) with BA5 and BA1 shorted.

Dual Output Mode

1. Connect a power supply capable of sourcing at least 5A to

2. Connect an electronic load or the device to be powered to

capability

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 can be

different with R18 and R19 open.

the outputs BA5 (VOUT1) and BA6 (GND), BA1 (VOUT2) and

BA2 (GND) of the board. All connections, especially the low

voltage, high current V

desired load current and should be made as short as

possible.

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

Application Note 1793

OUT

lines, should be able to carry the

(0A~15A)

LOAD2

LOAD1

OUT2

OUT1

Related parts for ISL8225MEVAL4Z

ISL8225MEVAL4Z Summary of contents

Page 1

... Easy access to all pins, with few external components, reduces PCB design to a component layer and a simple ground layer. This ISL8225MEVAL4Z evaluation board is designed for dual 15A output applications. Optionally, this board can easily be converted for 30A single output use. Multiple ...

Page 2

... 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 ...

Page 3

However, if the output voltage is increased or the board is operated at elevated temperatures, then the available current is derated. Refer to the derated current curves in the determine the output current available. For layout of designs using the ...

Page 4

MODULE (I = INPUT OUTPUT; I/O = INPUT AND OUTPUT, BI-DIRECTION) EN1/FF1 EN2/FF2 VSEN2- MODE MODE (I) (I) (I) ( Active Active Active ...

Page 5

... PHASE2 PHASE1 9 PHASE2 PHASE1 2 1 JP1 ENC EN/FF2 OUT R18 VIN2 VIN1 DNP R19 DNP GROUND ARE TIED TOGETHER AT PIN 6 OF U1. E FIGURE 2. ISL8225MEVAL4Z BOARD SCHEMATIC VOUT1 C12 1000PF R22 E OPEN R21 VCC IN DNP COMP1 20 OUT ISHARE ...

Page 6

Layout FIGURE 3. TOP SILK SCREEN FIGURE 5. LAYER 2 FIGURE 4. TOP LAYER COMPONENT SIDE FIGURE 6. LAYER 3 ...

Page 7

Layout (Continued) FIGURE 7. BOTTOM LAYER SOLDER SIDE FIGURE 8. BOTTOM SILK SCREEN ...

Page 8

Bill of Materials PART NUMBER REF DES 10TPB330M C04, C08 131-4353-00 J1, J4 2N7002-7-F Q1 31-5329-52RFX J2, J5 5002 P1-P8 575-4 BA1-BA8 EEVHA1E331UP CIN1, CIN4 GRM21BR71C475KA73L C1 GRM32ER71A476KE15L C01, C03, C05, C07 H1045-OPEN C2, C3, C6, C7 H1045-00102-16V10 C15, C16 ...

Page 9

... ISL8225MEVAL4Z Efficiency Curves 100 LOAD CURRENT (A) FIGURE 9. EFFICIENCY vs LOAD CURRENT (5V 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 Application Note or Technical Brief is current before proceeding. ...

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