LTC3882
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LTC3882

具有数字电源系统管理功能的双输出 PolyPhase 降压型 DC/DC 电压模式控制器

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Info : 推荐新设计使用 tooltip
Info : 推荐新设计使用 tooltip
产品详情
产品模型 9
特性
  • PMBus/I2C兼容串行接口
    • 监控电压、电流、温度和故障
    • 数字可编程电压、限流、软启停、时序控制、裕量调节、AVPUV/OV阈值
  • 3V VINSNS 38V0.5V VOUT  5.25V
  • 输出电压精度:±0.5%
  • 可编程PWM频率或外部时钟同步频率范围为250kHz1.25MHz
  • 精确PolyPhase®均流
  • 具有故障记录和ECC功能的内部EEPROM
  • IC电源范围:3V13.2V
  • 电阻或电感DCR电流检测
  • 对关键参数进行可选电阻编程
  • 40引脚(6mm × 6mm) QFN封装
  • 通过 AEC-Q100 汽车应用认证
更多细节
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LTC3882是一款双通道、多相DC/DC同步降压型开关稳压控制器,具有符合PMBus标准的串行接口。它使用恒频、前沿调制、电压模式架构,可实现出色的瞬态响应和输出调节性能。每个PWM通道可使用各种3.3V兼容功率级(包括电源模块、DrMOS或分立FET驱动器)产生0.5V至5.25V的输出电压。最多四个LTC3882可以并行工作,以实现2相、3相、4相、6相或8相操作。

LTpowerPlay®软件工具支持LTC3882系统配置和监测。该器件的串行接口可用于回读输入电压、输出电压和电流、温度和故障状态。各种工作参数可以通过数字接口设置或存储在内部EEPROM供上电时使用。也可使用外部配置电阻对开关频率和相位、输出电压和器件地址进行编程设置。



PWM 使能输出 TG/BG 控制 硬件写保护 专用PGOOD 差分Vout检测
LTC3882 否  仅 VOUT0
LTC3882-1  否 VOUT0 和 VOUT1

应用

  • 高电流分布式电源系统
  • 服务器、网络和存储设备
  • 智能高能效电源调节
  • 工业/电信/ATE系统
产品模型 9

产品技术资料帮助

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ADI公司所提供的资料均视为准确、可靠。但本公司不为用户在应用过程中侵犯任何专利权或第三方权利承担任何责任。技术指标的修改不再另行通知。本公司既没有含蓄的允许,也不允许借用ADI公司的专利或专利权的名义。本文出现的商标和注册商标所有权分别属于相应的公司。

参考资料

参考资料

视频

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LTC3882CIUJ#TRPBF
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LTC3882EUJ#WTRPBF
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LTC3882IUJ#PBF
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LTC3882IUJ#TRPBF
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LTC3882IUJ#WPBF
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LTC3882IUJ#WTRPBF
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软件和型号相关生态系统

软件和型号相关生态系统

评估套件

评估套件 5

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DC2291A

LTC3882EUJ Demo Board │LTC3882 (x2) 4-Phase PMBus Buck , 7V ≤ VIN ≤ 14V; 0.5V ≤ VOUT ≤ 2V @ 140A

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DC2291A

LTC3882EUJ Demo Board │LTC3882 (x2) 4-Phase PMBus Buck , 7V ≤ VIN ≤ 14V; 0.5V ≤ VOUT ≤ 2V @ 140A

LTC3882EUJ Demo Board │LTC3882 (x2) 4-Phase PMBus Buck , 7V ≤ VIN ≤ 14V; 0.5V ≤ VOUT ≤ 2V @ 140A

产品详情

Demonstration circuit 2291A is a high current, high efficiency, PolyPhase® synchronous buck converter featuring the LTC3882EUJ, a dual output voltage mode controller. This demo board incorporates two LTC3882 controllers which provide four phases to deliver up to 140A. The default output voltage is 1V and can be adjusted from 0.5V to 2V. The LTC3882 has the PMBus interface and digital power system management functions.

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DC1936A

LTC3882EUJ Demo Board | Dual Buck Voltage Mode Controller with PSM, 7V ≤ VIN ≤ 14V; 0.8V ≤ VOUT0 ≤ 1.8V @ 30A, 0.8V ≤ VOUT1 ≤ 1.8V @ 30A

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DC1936A

LTC3882EUJ Demo Board | Dual Buck Voltage Mode Controller with PSM, 7V ≤ VIN ≤ 14V; 0.8V ≤ VOUT0 ≤ 1.8V @ 30A, 0.8V ≤ VOUT1 ≤ 1.8V @ 30A

LTC3882EUJ Demo Board | Dual Buck Voltage Mode Controller with PSM, 7V ≤ VIN ≤ 14V; 0.8V ≤ VOUT0 ≤ 1.8V @ 30A, 0.8V ≤ VOUT1 ≤ 1.8V @ 30A

产品详情

Demonstration circuit 1936A is a high current, high efficiency, polyphase synchronous buck converter featuring the LTC3882EUJ, a dual output polyphase voltage mode controller. The LTC3882 has the PMBus interface and power system management functions.


The DC1936A uses 6mm × 6mm DrMOS as the power stage. The input range of this board is from 7V to 14V, and the output voltage can be programmed from 0.8V to 1.8V. The DC1936A provides two outputs, with each output capable of 1V/30A. The DC1936A has optional discrete driver (LTC4449EDCB) and MOSFET footprints for high input voltage applications up to 38V. The DC1936A also has an on-board dynamic load circuit, which makes it easy for the customer to evaluate the transient performances.



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DC2174A-A

LTC3882EUJ Demo Board | 7V ≤ VIN ≤ 14V; 0.5V ≤ VOUT0 ≤ 2V @ 35A, 0.5V ≤ VOUT1 ≤ 2V @ 35A

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DC2174A-A

LTC3882EUJ Demo Board | 7V ≤ VIN ≤ 14V; 0.5V ≤ VOUT0 ≤ 2V @ 35A, 0.5V ≤ VOUT1 ≤ 2V @ 35A

LTC3882EUJ Demo Board | 7V ≤ VIN ≤ 14V; 0.5V ≤ VOUT0 ≤ 2V @ 35A, 0.5V ≤ VOUT1 ≤ 2V @ 35A

产品详情

Demonstration circuit 2174A-A is a high current, high efficiency, dual-phase dual-output synchronous buck converter featuring the LTC3882EUJ, a dual output voltage mode controller. The DC2174A-A operates with a 7V to 14V input voltage and is configured for 1.5V at 35A and 1V at 35A. The output voltage adjustment range is 0.5V to 2V. The LTC3882 has the PMBus interface and power system management functions.


 


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DC2174A-B

LTC3882EUJ演示板 | 双相单路输出PMBus降压器件,7V ≤ VIN ≤ 14V;0.5V ≤ VOUT0 ≤ 2V (70A)

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DC2174A-B

LTC3882EUJ演示板 | 双相单路输出PMBus降压器件,7V ≤ VIN ≤ 14V;0.5V ≤ VOUT0 ≤ 2V (70A)

LTC3882EUJ演示板 | 双相单路输出PMBus降压器件,7V ≤ VIN ≤ 14V;0.5V ≤ VOUT0 ≤ 2V (70A)

产品详情

演示电路2174A-B是一款高电流、高效率、双相单路输出同步降压转换器,内置双路输出电压模式控制器LTC3882EUJ。DC2174A-B采用7V至14V输入电压工作,且配置为70A时提供1V输出。输出电压调整范围为0.5V至2V。LTC3882具有PMBus接口和电源系统管理功能。


 


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DC2252A-A

LTC3882EUJ Demo Board | EEPROM Programming Board for LTC3882

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DC2252A-A

LTC3882EUJ Demo Board | EEPROM Programming Board for LTC3882

LTC3882EUJ Demo Board | EEPROM Programming Board for LTC3882

产品详情

Demonstration circuit 2252A-A is a lab tool to program and verify the EEPROM inside the LTC3882 IC. The DC2252A-A is shipped with a LTC3882 placed in the clamshell style programming socket. The EEPROM contains the factory default configuration. The demo system also requires a Windows PC, the DC1613A USB-to-I2C/SMBus/PMBus Controller and the LTpowerPlay software. The LTpowerPlay .proj file that corresponds to the factory default can be found in the GUI.

工具和仿真

工具及仿真模型 4

LTspice®是一款强大高效的免费仿真软件、原理图采集和波形观测器,为改善模拟电路的仿真提供增强功能和模型。

Linduino

Linduino是ADI公司的Arduino兼容系统,用于开发和分配面向集成电路的固件库和示例代码。每个支持Linduino的产品包括示例主程序(在LTSketchbook/产品型号文件夹中定义)和驱动程序代码(在LTSketchbook/库文件夹中定义)。

GitHub上的Linduino代码存储库以及有关如何使用代码的说明

购买Linduino

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参考电路

参考电路 1

QorIQ LS1088A-RDB Dev Kit

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nxp-freescale-qoriq-ls1088a-rdb

nxp-freescale-qoriq-ls1088a-rdb

参考设计

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特性和优点

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
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