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LTM4675EY#PBF

更新时间： 2024-02-21 18:57:08
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
132页 2804K
描述
LTM4675 - Dual 9A or Single 18A µModule (Power Module) Regulator with Digital Power System Management; Package: BGA; Pins: 108; Temperature Range: -40°C to 85°C

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中文翻译

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LTM4675EY#PBF 技术参数

是否Rohs认证： 符合生命周期：Active
零件包装代码：BGA包装说明：BGA-108
针数：108Reach Compliance Code：compliant
风险等级：2.22Base Number Matches：1

LTM4675EY#PBF 数据手册

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LTM4675  
Dual 9A or Single 18A  
µModule Regulator with Digital  
Power System Management  
DescripTion  
FeaTures  
The LTM®4675 is a dual 9A or single 18A step-down  
µModule® (micromodule) DC/DC regulator with 40ms  
turn-on time. It features remote configurability and  
telemetry-monitoring of power management parameters  
n
Dual, Fast, Analog Loops with Digital Interface for  
Control and Monitoring  
n
Wide Input Voltage Range: 4.5V to 17V  
n
Output Voltage Range: 0.5V to 5.5V  
2
n
overPMBus—anopenstandardI C-baseddigitalinterface  
±0.5ꢀ Maꢁiꢂuꢂ DC Output ꢃrror Oꢄer ꢅeꢂperature  
n
protocol . The LTM4675 is comprised of fast analog  
control loops, precision mixed-signal circuitry, EEPROM,  
power MOSFETs, inductors and supporting components.  
±±.5ꢀ Current Readꢆacꢇ Accuracꢈ at ꢉA Load  
±
n
400ꢇHz PMBus-Coꢂpliant I C Serial Interface  
n
Integrated 16-Bit ∆Σ ADC  
n
Supports ꢅeleꢂetrꢈ Polling Rates Up to 1±5Hz  
TheLTM4675’s2-wireserialinterfaceallowsoutputstobe  
margined,tunedandrampedupanddownatprogrammable  
slew rates with sequencing delay times. Input and output  
currentsandvoltages,outputpower,temperatures,uptime  
and peak values are readable. Custom configuration of  
the EEPROM contents is not required. At start-up, output  
voltages, switching frequency, and channel phase angle  
assignments can be set by pin-strapping resistors. The  
LTpowerPlay™GUIandDC1613USB-to-PMBusconverter  
and demo kits are available.  
n
Constant Frequencꢈ Current Mode Control  
n
Parallel and Current Share Multiple Modules  
n
All 7-Bit Slave Addresses Supported  
n
Drop-In Pin-Compatible to Dual 13A LTM4676A and  
Dual 18A LTM4677  
n
16mm × 11.9mm × 3.51mm BGA Package  
Readaꢆle Data:  
n
Input and Output Voltages, Currents, and Temperatures  
n
Running Peak Values, Uptime, Faults and Warnings  
Onboard EEPROM Fault Log Record with ECC  
n
The LTM4675 is offered in a 16mm × 11.9mm × 3.51mm  
BGA package available with SnPb or RoHS compliant  
terminal finish.  
L, LT, LTC, LTM, Linear Technology, the Linear logo, µModule and PolyPhase are registered  
trademarks and LTpowerPlay is a trademark of Linear Technology Corporation. All other  
trademarks are the property of their respective owners. Protected by U.S. Patents including  
5408150, 5481178, 5705919, 5929620, 6144194, 6177787, 6580258, 7420359, 8163643.  
Licensed under U.S. Patent 7000125 and other related patents worldwide.  
Writaꢆle Data and Configuraꢆle Paraꢂeters:  
n
Output Voltage, Voltage Sequencing and Margining  
n
Digital Soft-Start/Stop Ramp  
n
OV/UV/OT, UVLO, Frequency and Phasing  
applicaTions  
Clicꢇ to ꢄiew associated Video Design Idea.  
n
System Optimization in Prototype and Production  
Using PMBus and LꢅpowerPlaꢈ to Monitor ꢅeleꢂetrꢈ and Margin  
VOUꢅ0/VOUꢅ1 During Load Pattern ꢅests. 10Hz Polling Rate. 1±VIN  
Typical applicaTion  
Dual ꢉA µModule Regulator with Digital  
Output Voltage Readback, V  
OUT  
Margined 7.5% Low  
Input Current Readback  
Interface for Control and Monitoring*  
1.1  
1.0  
0.9  
0.8  
1.9  
1.0  
0.5  
0
2.0  
1.0  
0
V
,
OUT0  
V
IN  
V
V
V
ADJUSTABLE  
UP TO 9A  
1.8  
1.7  
1.6  
IN0  
IN1  
OUT0  
+
5.75V TO 17V  
22µF  
×2  
V
V
OSNS0  
SV  
100µF  
×4  
IN  
LOAD  
0
RUN  
RUN  
–
0
1
ON/OFF CONTROL  
OSNS0  
0
3
6
9
12  
0
3
6
9
12  
4675 TA01d  
V
,
OUT1  
LTM4675  
TIME (s)  
4675 TA01b  
TIME (s)  
V
ADJUSTABLE  
UP TO 9A  
OUT1  
GPIO  
GPIO  
FAULT INTERRUPTS,  
POWER SEQUENCING  
0
1
V
OSNS1  
Output Current Readback, Varying Load Pattern  
Power Stage Temperature Readback  
100µF  
×4  
10  
5
10  
5
60  
57  
54  
51  
60  
57  
54  
51  
LOAD  
2
1
PWM CLOCK AND  
TIME-BASE  
SGND  
SYNC  
SHARE_CLK  
SYNCHRONIZATION  
SCL  
SDA  
ALERT  
I C/SMBus I/F WITH  
PMBus COMMAND SET  
TO/FROM IPMI OR OTHER  
BOARD MANAGEMENT  
CONTROLLER  
REGISTER WRITE  
PROTECTION  
WP  
GND  
0
0
4675 TA01a  
0
3
6
9
12  
0
3
6
9
12  
4675 TA01e  
TIME (s)  
4675 TA01c  
TIME (SEC)  
*FOR COMPLETE CIRCUIT, SEE FIGURE 61  
4675fb  
1
For more information www.linear.com/LTM4675  
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中文翻译

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