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LM25066

更新时间: 2024-11-15 12:50:07
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美国国家半导体 - NSC /
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18页 5358K
描述
Evaluation Board Insertion delay: 147 ms (typical)

LM25066 数据手册

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National Semiconductor  
Application Note 2100  
Dennis Hudgins  
LM25066 Evaluation Board  
February 8, 2011  
Introduction  
PCB Features  
The LM25066EVM evaluation board provides the design en-  
gineer with a fully functional intelligent monitoring and pro-  
tection controller board designed for positive voltage sys-  
tems. This application note describes the various functions of  
the board, how to test and evaluate it, and how to use the GUI  
design tool to change the components for a specific applica-  
tion. Use of the advanced telemetry and monitoring capabili-  
ties of this device requires the installation of the Intelligent  
Power Manager graphical user interface, however the  
LM25066 is capable of acting as a hot-swap and protection  
circuit without any software installation. Please check the  
LM25066 webpage for the latest software and datasheet in-  
formation.  
Input voltage range: +2.9V to 16V (limited by input clamp)  
Programmable Current limit: 50 Amps or 90 Amps (±10%)  
Q1 Power limit: 80W (typical), 100W (worst case)  
UVLO Thresholds: 2.9V and 3.1V  
PGD Thresholds: 10.8V and 10.25V  
Insertion delay: 147 ms (typical)  
Fault time-out period: 8.9 ms  
Restart time: 1.1 seconds  
PCB Size: 3.5” x 3.5”  
Solution Size: 0.75” x 0.75”  
Simplified Schematic  
30143540  
FIGURE 1. Simplified Evaluation Board Schematic  
The simplified schematic for the LM25066 evaluation board  
27 unique addresses. Jumpers also exist to set the device  
retry, circuit breaker, and current limit behavior. Test points  
are provided to connect to the input voltage, output voltage,  
VAUX, PGD, VREF and the TIMER pin.  
is shown in Figure 1. Connections to the PMBus interface is  
provided by J1. Panduit terminal lugs bolt down to the PCB to  
provide input and output connection. Jumpers ADR0, ADR1,  
and ADR2 set the PMBusTM address of the device to one of  
© 2011 National Semiconductor Corporation  
301435  
www.national.com  

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