Datasheet > ISL8225MEVAL2Z

ISL8225MEVAL2Z

更新时间： 2024-11-04 12:23:47

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英特矽尔 - INTERSIL		/
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描述
ISL8225MEVAL2Z 6-Phase, 90A Evaluation Board Setup Procedure

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ISL8225MEVAL2Z 数据手册

Application Note 1789

ISL8225MEVAL2Z 6-Phase, 90A Evaluation Board Setup

Procedure

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

Recommended Equipment

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

• 0V to 20V power supply with at least 10A source current

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

capability

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

• Electronic load capable of sinking current up to 90A

(multiple electronic current loads can be used in parallel to

sink more current)

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_OUTsetting resistors.

• Digital multimeters (DMMs)

• 100MHz quad-trace oscilloscope

The ease of use virtually eliminates design and manufacturing

risks while dramatically improving time to market. Need more

output current? Simply parallel up to six ISL8225M modules to

scale up to an 180A solution.

Quick Start

The inputs are J3 (VIN) and J4 (GND). The outputs are J1 and

J5 (VOUT), J2 and J6 (GND) and J6 (VOUT2). Please refer to

Figure 1. This 90A evaluation board can be easily modified to

30A (one module) or 60A (two modules) operation.

The ISL8225M has a thermally enhanced, compact 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.

1. Connect a power supply capable of sourcing at least 10A to

the input (VIN J3 & GND J4) of the ISL8225MEVAL2Z

evaluation board, with a voltage between 4.5V to 20V.

Connect an electronic load or the device to be powered to

the output (VOUT (J1, J5) & GND (J2, J6)) of the board. All

connections, especially the low voltage, high current V_OUT

lines, should be able to carry the desired load current and

should be made as short as possible. Duplicated tab

connections on VOUT (J1, J5) and GND (J2, J6) to carry large

current.

The ISL8225MEVAL2Z evaluation board allows for a single

6-phase paralleled output, which delivers high current up to

90A. The input voltage is 4.5V to 20V and the default output

voltage on this board is set at 1.2V. The current level for this

board is 90A with no extra cooling required.

Related Resources

2. Ensure the jumpers for EN2 and EN3 are in the “ON”

position and EN is open. 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

See how-to

video at

intersil.com/

evid02

connections in this case). Measure the output voltage, V_OUT

which should be at 1.2V.

3. The ISL8225MEVAL2Z is manufactured with a V_OUTdefault

value of 1.2V; if different output voltages are desired, board

resistors can be exchanged to provide the desired V_OUT. Please

refer to Table 1 on page 2 for R2/R64 resistor values, which

can be used to produce different output voltages.

LOAD

(0A~90A)

NOTE 1

4.5V TO 20V

OUT

NOTE:

1. Multiple loads can be paralleled to

reach 90A (i.e. Two 45A loads

paralleled together).

FIGURE 1. ISL8225MEVAL2Z BOARD IMAGE

December 3, 2012

AN1789.0

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

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.

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

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与ISL8225MEVAL2Z相关器件

型号	品牌	获取价格	描述	数据表
ISL8225MEVAL3Z	INTERSIL	获取价格	ISL8225MEVAL3Z 30A, Single Output Evaluation Board Setup Procedure
ISL8225MEVAL4Z	INTERSIL	获取价格	ISL8225MEVAL4Z Dual 15A/Optional 30A Cascadable Evaluation Board Setup Procedure
ISL8225MIRZ	INTERSIL	获取价格	Dual 15A/Single 30A Step-Down Power Module
ISL8225MIRZ-T	INTERSIL	获取价格	Dual 15A/Single 30A Step-Down Power Module
ISL8240M	RENESAS	获取价格	Dual 20A/Single 40A Step-Down Power Module
ISL8240MEVAL3Z	RENESAS	获取价格	Dual 20A/Single 40A Step-Down Power Module
ISL8240MEVAL4Z	RENESAS	获取价格	Dual 20A/Single 40A Step-Down Power Module
ISL8240MIRZ	RENESAS	获取价格	Dual 20A/Single 40A Step-Down Power Module
ISL8270M	RENESAS	获取价格	Digital DC/DC PMBus 25A Module
ISL8270MAIRZ	RENESAS	获取价格	Digital DC/DC PMBus 25A Module; MODULE40; Temp Range: -40° to 85°C

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