中国电子技术网
设为齐乐娱乐老虎机官网 网站地图 加入收藏
 
  1. MCU|FPGA|嵌入式|模拟设计|RF|电源管理|传感器|测试测量|LED|DSP|存储器|AC/DC转换器|DC/DC转换器|放大器|铁电存储|
  1. 齐乐娱乐老虎机官网|自动化与马达控制|人工智能|智能能源|智能电源|VR/无人机|智能手机|智能照明|智能医疗|5G技术|智能汽车|智能可穿戴
  1. 齐乐娱乐老虎机官网 >  解决方案 >  [齐乐娱乐老虎机官网] ADI LTM4700 400A数字电源系统管理功能多相降压μModule电源解决方案

[齐乐娱乐老虎机官网] ADI LTM4700 400A数字电源系统管理功能多相降压μModule电源解决方案

关键词:电源管理 DC/DC转换器 μ Module电源 LTM4700 时间:2019-07-02 11:23:19       来源:齐乐娱乐老虎机官网

ADI公司的LTM4700是单路100A降压μModule®(电源模块)DC/DC稳压器,可在PMBus(基于开放标准I2C数字接口协议)对电源管理参数进行遥控配置和遥测监测.LTM4700包括有快速模拟控制回路,精密混合信号电路,EEPROM,功率MOSFET,电感和支持的元件.宽工作电压4.5V-16V,输出电压范围0.5V-1.8V,100A时从12VIN 到1VOUT的满负载效率~90%,DC输出温度误差最大为±0.5%,25℃到125℃时的电流反馈精度±3%,器件集成了输入电流检测放大器,400kHz PMBus兼容I2C串行接口,支持遥测轮询率高达125Hz,集成了16位ΔΣ ADC,采用恒频电流模式控制,并行和电流共享多种模式,15mm×22mm×7.87mm BGA封装,主要用在原型,量产和现场环境的系统优化,特性化和数据挖掘以及电信,数据通信与存储系统.本文介绍了LTM4700主要特性,简化框图和功能框图,测试电路图,以及4xLTM4700 400A演示板DC2784A-C主要特性,和PC的建立图,以及电路图,材料清单和PCB设计图.

The LTM®4700 is a dual 50A or single 100A step-downμModule® (power module) DC/DC regulator featuringremote configurability and telemetry-monitoring of powermanagement parameters over PMBus— an open standardI2C-based digital interface protocol. The LTM4700 iscomprised of fast analog control loops, precision mixedsignal circuitry, EEPROM, power MOSFETs, inductors andsupporting components. The LTM4700 product video isavailable on website.

The LTM4700’s 2-wire serial interface allows outputs tobe margined, tuned and ramped up and down at programmableslew rates with sequencing delay times. Input andoutput currents and voltages, output power, temperatures,uptime and peak values are readable. Custom configurationof the EEPROM contents is not required. At start-up,output voltages, switching frequency, and channel phaseangle as-signments can be set by pin-strapping resistors.

The LTpowerPlay® GUI and DC1613 USB-to-PMBus converterand demo kits are available.

The LTM4700 is offered in a 15mm × 22mm × 7.87mmBGA package available with SnPb or RoHS compliantterminal finish.

LTM4700主要特性:

Dual 50A or Single 100A Digitally Adjustable Outputs withDigital Interface for Control, Compensation and Monitoring
Wide Input Voltage: 4.5V to 16V
Output Voltage Range: 0.5V to 1.8V
~90% Full Load Efficiency from 12VIN to 1VOUT at 100A
±0.5% Maximum DC Output Error Over Temperature
±3% Current Readback Accuracy (25℃ to 125℃)
Integrated Input Current Sense Amplifier
400kHz PMBus-Compliant I2C Serial Interface
Supports Telemetry Polling Rates Up to 125Hz
Integrated 16-Bit ΔΣ ADC
Constant Frequency Current Mode Control
Parallel and Current Share Multiple Modules
15mm × 22mm × 7.87mm BGA Package
Readable Data:
Input and Output Voltages, Currents, and Temperatures
Running Peak Values, Uptime, Faults and Warnings
Internal EEPROM and Fault Logging with ECC
Writable Data and Configurable Parameters:
Output Voltage, Voltage Sequencing and Margining
Digital Soft-Start/Stop Ramp
Optimize Analog Loop Compensation
OV/UV/OT, UVLO, Frequency and Phasing

LTM4700应用:

System Optimization, Characterization and Data Miningin Prototype, Production and Field Environments
Telecom, Datacom, and Storage Systems

图1.简化LTM4700框图

图2. LTM4700功能框图

图3. LTM4700测试电路1:ATE高Vin工作范围配置,5.75V ≤ VIN ≤ 16V

图4. LTM4700测试电路2:ATE底Vin工作范围配置,4.5V ≤ VIN ≤ 5.75V

演示板DC2784A-C

LTM4700 High Current, PolyPhase Step-Down Power μModule Supply with Digital Power System Management 4×LTM4700, 400A Demonstration circuit 2784A-C is a high efficiency, highdensity, μModule regulator with 4.5V to 16V input range.

The output voltage is adjustable from 0.5V to 1.8V and itcan supply 400A maximum load current. The demo boardhas four LTM®4700 μModule regulators, which is a dual50A or single 100A step-down regulator with digital powersystem management. Please see LTM4700 data sheet formore detailed information.

DC2784A-C powers up to default settings and producespower based on configuration resistors without the needfor any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensivepower system management features of the part, downloadthe GUI software LTpowerPlay® onto your PC and useADI’s I2C/SMBus/PMBus dongle DC1613A to connect tothe board. LTpowerPlay allows the user to reconfigure thepart on the fly and store the configuration in EEPROM,view telemetry of voltage, current, temperature andfault status.

图5.4xLTM4700 400A演示板DC2784A-C外形图

图6.4xLTM4700 400A演示板DC2784A-C和PC建立图

图7.4xLTM4700 400A演示板DC2784A-C测量设备建立图

图8.400A演示板DC2784A-C电路图(1)

图9.400A演示板DC2784A-C电路图(2)

图10.400A演示板DC2784A-C电路图(3)

图11.400A演示板DC2784A-C电路图(4)

图12.400A演示板DC2784A-C电路图(5)

图13.400A演示板DC2784A-C电路图(6)
400A演示板DC2784A-C材料清单:




图14.400A演示板DC2784A-C PCB设计图(1)

图15.400A演示板DC2784A-C PCB设计图(2)

图16.400A演示板DC2784A-C PCB设计图(3)

图17.400A演示板DC2784A-C PCB设计图(4)

图18.400A演示板DC2784A-C PCB设计图(5)

图19.400A演示板DC2784A-C PCB设计图(6)

图20.400A演示板DC2784A-C PCB设计图(7)

图21.400A演示板DC2784A-C PCB设计图(8)

图22.400A演示板DC2784A-C PCB设计图(9)

图23.400A演示板DC2784A-C PCB设计图(10)

图24.400A演示板DC2784A-C PCB设计图(11)

图25.400A演示板DC2784A-C PCB设计图(12)

图26.400A演示板DC2784A-C PCB设计图(13)

图27.400A演示板DC2784A-C PCB设计图(14)

图28.400A演示板DC2784A-C PCB设计图(15)

图29.400A演示板DC2784A-C PCB设计图(16)

图30.400A演示板DC2784A-C PCB设计图(17)
详情请见:
https://www.analog.com/media/en/technical-documentation/data-sheets/LTM4700.pdf
https://www.analog.com/media/en/dsp-documentation/evaluation-kit-manuals/DC2784A-C.pdf
以及https://www.analog.com/media/en/technical-documentation/eval-board-schematic/DC2784A3ABC-SCH.pdf
DC2784A3ABC-SCH.pdf
DC2784A-C.pdf
LTM4700.pdf
DC2784A.zip

  1. 分享到:
 
猜你喜欢
  1. 验证码: 点击换一张
  2. 注册|忘记密码?
齐乐娱乐老虎机官网 中国电子行业研发工程师一站式服务平台 关于齐乐娱乐老虎机官网| 广告招商| 联系我们| 招聘信息| 友情链接| 齐乐娱乐老虎机官网导航| 手机齐乐娱乐老虎机官网 |   齐乐娱乐老虎机官网官方微博 Copyright © 2000- 齐乐娱乐老虎机官网 版权所有      京ICP备19016262号-2      增值电信业务经营许可证粤B2-20050142      公安机关备案号44030402002188 Tel: 010-62985649, 0755-33322333     Fax: 0755-33322099
齐乐娱乐老虎机