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LTC2928IG#TRMPBF

更新时间： 2024-01-16 20:36:31
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
34页 1105K
描述
Power Supply Module

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中文翻译

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LTC2928IG#TRMPBF 技术参数

生命周期：Active包装说明：,
Reach Compliance Code：unknownBase Number Matches：1

LTC2928IG#TRMPBF 数据手册

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LTC2928  
Multichannel Power Supply  
Sequencer and Supervisor  
FEATURES  
DESCRIPTION  
The LTC®2928 is a four channel cascadable power  
supplysequencerandhighaccuracysupervisor.Sequenc-  
ing thresholds, order and timing are configured with just a  
few external components, negating the need for PC board  
layout or software changes during system development.  
Multiple LTC2928s may be easily connected to sequence  
an unlimited number of power supplies.  
n
Easily Configure Power Management  
without Software  
n
Controls Up to Four Supplies per Device  
n
Cascades for Additional Supplies  
n
Staged Supply Sequencing with  
Adjustable Time Positions  
n
Fault Event Reporting with Diagnostics  
n
Selectable System Shutdown on Fault  
Sequence outputs control supply enable pins or  
N-channel pass gates. Precision input comparators with  
individualoutputsmonitorpowersupplyvoltagesto1.5%  
accuracy. Supervisory functions include undervoltage  
and overvoltage monitoring and reporting as well as µP  
reset generation. RST may be forced high to complement  
margin testing.  
n
1.5% Undervoltage Monitor Accuracy  
n
Overvoltage and/or Fault Indication  
n
Configurable Undervoltage and  
Overvoltage Thresholds  
n
Charge Pumped Enable Pins Drive N-Channel MOSFETs  
n
Operates from 2.9V to 16.5V  
n
5mm × 7mm 38-lead QFN and  
Application faults, whether internally or externally gener-  
ated, can shut down all controlled supplies. The type and  
source of faults are reported for diagnosis. Individual  
channel controls are available to independently exercise  
enable outputs and supervisory functions.  
36-lead SSOP Packages  
APPLICATIONS  
n
Network/Telecom Infrastructure  
n
Sequencing for Multiple I/O and Core Voltages  
A high voltage input allows the LTC2928 to be powered  
from voltages as high as 16.5V. A buffered reference  
output permits single negative power supply sequencing  
and monitoring operations.  
n
Power Management  
All registered trademarks and trademarks are the property of their respective owners. Protected  
by U.S. patents, including 4843302, 6949965.  
TYPICAL APPLICATION  
Sequencing Up and Down  
LTM4600  
3.3V  
12V  
V
V
OUT  
RUN  
IN  
ꢀ.ꢀꢁ  
ꢂ.ꢃꢁ  
ꢄ.ꢅꢁ  
ꢄ.ꢂꢁ  
LTC3414  
10k  
1.2V  
V
IN  
V
OUT  
RUN  
LTC1628  
2.5V  
1.8V  
V
V
OUT  
RUN  
IN  
AUSTIN LYNX  
V
Si7894ADP  
ꢄꢁꢗꢐꢘꢁ  
V
IN  
OUT  
ꢆꢇ  
AXA010AY93  
100Ω  
EN2 EN1 EN4 EN3  
12.1k  
36.5k  
0.1µF  
23.2k  
51.1k  
HV  
CC  
ON  
V1  
V2  
V3  
ON  
95.3k  
24.3k  
9.53k  
1.5k  
RT1  
RT2  
RT3  
RT4  
ꢐꢆꢇꢋ  
LTC2928  
V4  
SYSTEM  
RESET  
RST  
OV  
FLT  
3.4k  
DONE  
ꢈꢉꢊRꢉ  
ꢈꢋꢌꢍꢋꢇꢎꢋ  
ꢍꢏ  
ꢈꢋꢌꢍꢋꢇꢎꢋ  
ꢐꢆꢑꢇ  
ꢎꢆꢒꢏꢓꢋꢉꢋ  
V
FAULT  
CC  
ꢈꢋꢌꢍꢋꢇꢎꢋ ꢍꢏ  
ꢎꢆꢒꢏꢓꢋꢉꢋ  
ꢈꢉꢊRꢉ  
ꢈꢋꢌꢍꢋꢇꢎꢋ  
ꢐꢆꢑꢇ  
GND MS1 VSEL  
RTMR PTMR STMR  
0.047µF 3300pF  
1µF  
10k  
10k  
10k  
10k  
ꢂꢔꢂꢅ ꢉꢊꢕꢖ  
ALL RESISTORS 1%  
2928 TA06  
Rev. B  
1
Document Feedback  
For more information www.analog.com  
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中文翻译

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