LT3999

量产

具有占空比控制功能的低噪声、1A、1MHz 推挽式 DC/DC 驱动器

产品模型
12
产品技术资料帮助

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。

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产品详情

  • 宽输入工作范围:2.7V 至 36V
  • 具可编程电流限值的双 1A 开关
  • 可编程开关频率:50kHz 至 1MHz
  • 频率同步可高达 1MHz
  • 采用占空比控制的 ΔVIN 补偿
  • 低噪声拓扑
  • 可编程输入过压和欠压闭锁
  • 交叉传导阻止电路
  • 可编程软起动
  • 低停机电流:<1μA
  • 10 引脚 MSOP 封装和 DFN 封装
LT3999
具有占空比控制功能的低噪声、1A、1MHz 推挽式 DC/DC 驱动器
12V to 12V, 10W Low Noise Isolated DC/DC Converter LT3999 Line Regulation with Duty Cycle Control Product Package 1 Product Package 2
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工具及仿真模型

LTspice 1


LTspice中提供以下器件型号:

  • LT3999
LTspice

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。


评估套件

eval board
EVAL-MICROSEMI-SIC-MODULE

MICROSEMI-SIC-MODULE评估板

特性和优点

  • 半桥拓扑
  • 1200V、50A、200kHz
  •  >100kV/us CMTI
  • 4层PCB
  • 12V VIN电源
  • 独立的高端和低端PWM输入(单一控制,70ns死区时间用于测试)
  • 1 LT3999 + 1 ADuM4135(同时适用于高端和低端)
  • 全面测试的“去饱和保护”
  • 用于V+、V-和AC相位连接的低电感和高电流端子
 

产品详情

高功率评估板,在200kHz开关频率下提供高达1200V电压和50A电流,包含组合ADI ADuM4135隔离式栅极驱动器 + LT3999隔离电源控制器 + 采用半桥配置的Microsemi SiC电源模块。


欲了解更多信息,请发送电子邮件至:RenwBoards@analog.com.

eval board
ADSKPMB10-EV-FMCZ

Single-Channel, Fully Isolated, Low Latency Data Acquisition System (DAQ)

特性和优点

  • Fully Isolated PMOD-to-FMC interposer board
  • Software programmable bipolar input ranges (±1.1 V to ±11.0 V)
    • Allows single-ended and differential signals
  • GΩ input impedance allows direct interface with sensors
  • On-board 5 V reference and buffer
  • Complete power management solution
  • SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface
  • PC software for control and data analysis of time and frequency domain

产品详情

The ADSKPMB10-EV-FMCZ signal chain kit is a two-board solution, which consists of a Precision Medium Bandwidth Data Acquisition Solution on a PMOD form factor and a Fully Isolated PMOD-to-FMC interposer board.

The Precision Medium Bandwidth Data Acquisition Solution features a discrete programmable gain instrumentation amplifier (PGIA) that was built using a 30V, High Speed, Low Noise, Low Bias Current, JFET Operational Amplifier, the ADA4627-1, a Precision Quad Matched Resistor Network, the LT5400, a Low Capacitance, 4-Channel, ±15 V/+12 V iCMOS Multiplexer, the ADG1209 and the internal Fully Differential Amplifier (FDA) ADC driver of the ADAQ4003. The PGIA in thru front-end offers high input impedance that allows direct interface with a variety of sensors. A programmable gain is often needed to adapt the circuit to different input signal amplitudes—unipolar or bipolar and single-ended or differential with varying common-mode voltages. The PGIA works with the ADAQ4003, an 18-Bit, 2 MSPS, µModule® Data Acquisition Solution.

The Fully Isolated PMOD-to-FMC interposer board was designed using a Low Noise, 1A, 1MHz Push-Pull DC/DC Driver with Duty Cycle Control, the LT3999, a Robust 3.0kVrms Digital Isolators w/ Fail-Safe for the SPI lines and PGIA gain control pins, the ADuM152N and the ADuM120N, and a Low noise and ultra-low noise LDO regulators the ADP7105 and the ADP150N respectively.

APPLICATIONS

  • Data acquisition and system monitoring
  • Automated test equipment
  • Instrumentation 
  • Medical equipment

eval board
DC2049A

LT3999EMSE隔离式演示板|双输出推挽式变压器驱动器,10V ≤ VIN ≤ 15.5V;VOUT = ±12V @ 0.2A

产品详情

DC2049A演示电源如何利用LT3999和低压差(LDO)调节器来调节两个输出电压。


LT3999是一款单芯片推挽式DC/DC驱动器,具有宽输入范围,采用小型外部无源元件。


LT3999提供ΔVIN补偿占空比控制,支持采用宽输入电压范围和低LDO损耗。

EVAL-MICROSEMI-SIC-MODULE
MICROSEMI-SIC-MODULE评估板
EVAL-MICROSEMI-SIC-MODULE
ADSKPMB10-EV-FMCZ
Single-Channel, Fully Isolated, Low Latency Data Acquisition System (DAQ)
ADSKPMB10-EV-FMCZ ADSKPMB10-EV-FMCZ - Top View ADSKPMB10-EV-FMCZ - Bottom View ADSKPMB10-EV-FMCZ Kit with SDP-H1 ADSKPMB10-EV-FMCZ Kit with SDP-H1 - Top View
DC2049A
LT3999EMSE隔离式演示板|双输出推挽式变压器驱动器,10V ≤ VIN ≤ 15.5V;VOUT = ±12V @ 0.2A
DC2049A Demo Board DC2049A Demo Board DC2049A Demo Board DC2049A Demo Board DC2049A demo board image DC2049A - Schematic

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