MAX17639

推荐用于新设计

3V to 36V, 6A/8A/10A, 12A Peak, High-Efficiency, Synchronous Step-Down DC-DC Converter

数据手册 (Rev. 1) 产品选型表
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。
Viewing:

概述

  • Designed for Ultra-High Efficiency
    • 22mΩ/8mΩ RDS-ON Power MOSFETs
    • 94.9% Efficiency from 24VIN to 5VOUT, 10A with 95.6% Peak Efficiency at 6A
    • External Bias Input for Improved Efficiency
    • 40μA IQ Regulating 24VIN to 3.3VOUT
  • 10A Maximum Continuous, 12A Peak Transient Output for MAX17639
  • Die Temperature Monitoring
  • Designed for Low EMI
    • Symmetrical Input Voltage Pins
    • 400kHz to 2.2MHz Adjustable Switching Frequency with External Clock Synchronization
    • 4mm x 4mm 18L-FC2QFN
  • Reduces External Components and Total Cost
    • No Schottky–Synchronous Operation
    • Adjustable Output Range from 0.6V to 90% of VIN
    • Programmable Soft-Start and EN/UVLO Threshold
  • Operates Reliably in Adverse Industrial Environments
    • Built-in Hiccup-Mode Overload Protection
    • Built-in Output-Voltage Status Monitoring and Die Temperature Monitoring with RESET/TJ Pin
    • High Industrial -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range

The MAX1763x are the high-efficiency, high-voltage, synchronous step-down DC-DC converters with integrated MOSFETs operating over an input voltage range of 3V to 36V. The MAX17636, MAX17638, MAX17639 can deliver up to 6A, 8A, and 10A continuous currents, respectively. Additionally, MAX17639 can support up to 12A peak current. These devices can generate output voltages ranging from 0.6V up to 90% of VIN.

These devices feature a MODE/SYNC pin that can be used to program the device in forced pulse-width modulation (PWM) or switching frequency modulation (SFM) modes of operation and to synchronize the internal clock to an external clock. These devices offer an enable/input undervoltage lockout (EN/UVLO) pin to program the desired input voltage at which the converter turns on/off. These devices also have a soft-start (SS) pin to reduce inrush currents during startup. In addition, these devices feature a RESET/TJ, pin which can be used either to monitor the status of output voltage or die temperature. The die temperature monitor allows the user to directly measure the silicon die temperature instead of relying on theoretical estimation, thus enabling robust, reliable power supply design.

APPLICATIONS

  • Factory and Building Automation
  • Distributed DC Power Systems
  • General Purpose Power Supply
MAX17639
3V to 36V, 6A/8A/10A, 12A Peak, High-Efficiency, Synchronous Step-Down DC-DC Converter
MAX17639 Simplified Application Diagram MAX17639 Chip Illustration
添加至 myAnalog

将产品添加到myAnalog 的现有项目或新项目中（接收通知）。

创建新项目
提问

参考资料

数据手册 1

用户手册 1

了解更多
添加至 myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

创建新项目

软件资源

找不到您所需的软件或驱动?

申请驱动/软件

评估套件

eval board
schematic 1
schematic 2
schematic 3
MAX17639EVKITA

Evaluates: MAX17639 in 5V Output-Voltage Application

立即购买 更多内容

特性和优点

  • Operates from a 6.5V to 36V Input Supply
  • Up to 10A Load Current
  • 5V Output Voltage
  • 400kHz Switching Frequency
  • 95.6% Peak Efficiency
  • Selectable PWM and SFM Modes of Operation
  • Enable/UVLO Input, Resistor-Programmable InputUndervoltage Lockout (UVLO) Threshold
  • Adjustable Soft-Start Time
  • Die Temperature Monitor
  • Open-Drain RESET Output
  • External Frequency Synchronization
  • Overcurrent and Overtemperature Protection
  • Proven Printed Circuit Board (PCB) Layout
  • Fully Assembled and Tested
  • Complies with CISPR 32 (EN55032) Class B Conducted and Radiated Emissions

产品详情

The MAX17639 5V output evaluation board provides a proven design to evaluate the MAX17639 high-voltage, high-efficiency, synchronous step-down DC-DC converters. The application circuit is configured to demonstrate optimum performance and component sizes in the evaluation board. The evaluation board also provides a good layout example, optimized for conducted, radiated electromagnetic interference (EMI), and thermal performance.

The evaluation board is configured to operate at 400kHz switching frequency over a 6.5V to 36V input voltage range and deliver up to 10A load current.

The evaluation board features an adjustable input undervoltage-lockout, adjustable soft-start, open-drain RESET/TJ, die temperature monitor, external clock synchronization, thermal shutdown, and selectable mode of operation [pulse-width modulation (PWM) or switching frequency modulation (SFM)].

The MAX17639 converter data sheet provides a complete description of the part that should be read in conjunction with this user guide before operating the evaluation board.
MAX17639EVKITA
Evaluates: MAX17639 in 5V Output-Voltage Application
MAX17639EVKITA Board Photo Angle View MAX17639EVKITA Board Photo Top View MAX17639EVKITA Board Photo Bottom View

最新评论

需要发起讨论吗？ 没有关于 MAX17639的相关讨论？是否需要发起讨论？

在EngineerZone®上发起讨论

近期浏览