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LTC3886EUKG#PBF

更新时间： 2024-02-20 13:19:04
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
120页 1538K
描述
LTC3886 - 60V Dual Output Step-Down Controller with Digital Power System Management; Package: QFN; Pins: 52; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3886EUKG#PBF 技术参数

是否Rohs认证： 符合生命周期：Active
零件包装代码：QFN包装说明：7 X 8 MM, LEAD FREE, PLASTIC, QFN-52
针数：52Reach Compliance Code：compliant
风险等级：5.67Base Number Matches：1

LTC3886EUKG#PBF 数据手册

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LTC3886  
60V Dual Output  
Step-Down Controller with Digital  
Power System Management  
DescripTion  
FeaTures  
2
The LTC®3886 is a dual PolyPhase DC/DC synchronous  
n
PMBus/I C Compliant Serial Interface  
2
n
Telemetry Read-Back Includes V , I , V , I  
,
step-down switching regulator controller with I C-based  
PMBus compliant serial interface. This controller employs  
a constant-frequency, current-mode architecture, with high  
voltage input and output capability along with program-  
mable loop compensation. The LTC3886 is supported by  
theLTpowerPlay® softwaredevelopmenttoolwithgraphical  
user interface (GUI).  
IN IN OUT OUT  
Temperature and Faults  
n
Programmable Voltage, Current Limit, Digital  
Soft-Start/Stop, Sequencing, Margining, OV/UV/OC,  
Frequency, and Control Loop Compensation  
OutputErrorLessThan 0.5%OverTemperature  
Integrated16-BitADCand12-BitDAC  
n
n
n
n
n
IntegratedHighSideCurrentSenseAmplifier  
InternalEEPROMwithECCandFaultLogging  
IntegratedN-ChannelMOSFETGateDrivers  
The EXTV pin supports voltages up to 14V allowing for  
CC  
optimized circuit efficiency and die temperature, and for  
the controller output to supply the chip power. Switching  
frequency, output voltage, and device address can be  
programmed both by digital interface as well as external  
configuration resistors. Parameters can be set via the  
digital interface or stored in EEPROM. Both outputs have  
an independent power good indicator and FAULT function.  
Power Conversion  
n
Wide V Range: 4.5V to 60V  
OUT0 OUT1  
Analog Current Mode Control  
IN  
, V  
n
V
Range: 0.5V to 13.8V  
n
n
Accurate PolyPhase® Current Sharing for  
Up to 6 Phases (100kHz to 750kHz)  
Available in a 52-Lead (7mm × 8mm) QFN Package  
The LTC3886 can be configured for discontinuous (pulse-  
skipping) mode or continuous inductor current mode.  
n
L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule, PolyPhase, LTpowerPlay and  
LTpowerCAD are registered trademarks of Analog Devices, Inc. All other trademarks are the  
property of their respective owners. Protected by U.S. Patents including 5481178, 5705919,  
5929620, 6100678, 6144194, 6177787, 5408150, 6580258, 6304066, 7420359, 8786268  
Patent Pending. Licensed under U.S. Patent 7000125 and other related patents worldwide.  
applicaTions  
n
Telecom, Datacom, and Storage Systems  
n
Industrial and Point of Load Applications  
Typical applicaTion  
10µF  
2Ω  
5mΩ  
V
IN  
18V TO 48V  
10µF  
1µF  
+
–
INTV  
TG0  
V
I
I
CC IN IN IN  
TG1  
Efficiency and Power Loss  
vs Load Current  
0.1µF  
0.1µF  
BOOST0  
SW0  
BOOST1  
3.1µH  
6.82µH  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
9
8
7
6
5
4
3
2
1
0
SW1  
BG1  
V
V
f
= 48V  
IN  
OUT  
= 150kHz  
= 12V  
BG0  
LTC3886*  
SW  
6.81k  
1µF  
7.5k  
1µF  
SDA  
SCL  
FAULT0  
FAULT1  
PGOOD0  
PGOOD1  
FAULT MANAGEMENT  
PMBus  
ALERT  
RUN0  
RUN1 SHARE_CLK  
INTERFACE  
TO/FROM  
OTHER LTC DEVICES  
+
+
I
I
I
SENSE0  
SENSE1  
SENSE1  
6.81k  
7.5k  
0.22µF  
0.22µF  
–
–
I
SENSE0  
V
12V  
15A  
V
EXTV  
OUT1  
OUT0  
5V  
15A  
CC  
+
–
V
V
V
SENSE0  
SENSE0  
SENSE1  
TSNS1  
TSNS0  
+
I
I
+
TH0  
TH1  
0.01  
0.1  
1
10  
100  
I
I
530µF  
530µF  
THR0  
THR1  
10nF  
10nF  
LOAD CURRENT (A)  
V
DD33  
GND V  
DD25  
4700pF  
220pF  
2200pF  
220pF  
3883 TA01b  
1µF  
1µF  
*SOME DETAILS OMITTED FOR CLARITY  
3886 TA01a  
3886fe  
1
For more information www.linear.com/LTC3886  
1234567...120

中文翻译

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