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108-0740-001

更新时间: 2024-02-16 10:20:28
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英特矽尔 - INTERSIL 连接器
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7页 1283K
描述
ISL8225MEVAL3Z 30A, Single Output Evaluation Board Setup Procedure

108-0740-001 技术参数

生命周期:TransferredReach Compliance Code:unknown
风险等级:5.82连接器类型:INTERCONNECTION DEVICE

108-0740-001 数据手册

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Application Note 1790  
ISL8225MEVAL3Z 30A, Single Output 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  
Recommended Equipment  
• 0V to 20V power supply with at least 10A source current  
capability  
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, 30A design ready  
for use are the ISL8225M, a few passive components, and  
VOUT setting resistors.  
• Electronic load capable of sinking current up to 30A  
• Digital multimeters (DMMs)  
• 100MHz quad-trace oscilloscope  
The ease of use virtually eliminates design and manufacturing  
risks while dramatically improving time to market.  
Quick Start  
The inputs are J1 (VIN) and J2 (GND). The outputs are J3 (VOUT)  
and J4 (GND). Refer to Figure 1 for connections.  
The simplicity of the ISL8225M is its off-the-shelf, unassisted  
implementation. Patented module structure allows for higher  
power density and better efficiency than competing solutions.  
Patented current sharing in multi-phase operation greatly  
reduces ripple currents, BOM costs, and complexity.  
1. Connect a power supply capable of sourcing at least 10A to  
the input (VIN J1 and GND J2) of the ISL8225MEVAL3Z  
evaluation board, with a voltage between 4.5V to 20V.  
Connect an electronic load or the device to be powered to  
the output (VOUT J3 and GND J4) 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.  
The ISL8225MEVAL3Z evaluation board enables a single  
output by paralleling two phases to deliver 30A continuous  
load current. The ISL8225M supports input voltage from 4.5V  
to 20V and the output voltage ranges from 0.6V to 6V. With the  
single resistor modification, the output voltage can be easily  
adjusted to different voltages.  
2. Turn on the power supply. Measure the output voltage, VOUT  
,
which should be at 1.2V if the board is working properly.  
3. The ISL8225MEVAL3Z is manufactured with a default VOUT  
value of 1.2V; if different output voltages are desired, board  
Related Resources  
See how-to  
video at  
intersil.com/  
evid01  
resistors can be exchanged to provide the desired VOUT  
.
Please refer to the table printed on the backside of the  
evaluation board or Table 1 on page 2 for RVSET resistor values,  
which can be used to produce different output voltages.  
+
+
+
LOAD  
(0A~30A)  
V
IN  
V
4.5V TO 20V  
V
V
OUT  
-
-
-
FIGURE 1. ISL8225MEVAL3Z BOARD IMAGE  
December 3, 2012  
AN1790.0  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
Copyright Intersil Americas Inc. 2012. All Rights Reserved.  
1
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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