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TI产品 - PTB78560B介绍
PTB78560B - 30W、24V/48V 输入 DC/DC 转换器,使用自动跟踪定序

PTB78560B是TI公司的一款隔离式模块产品,PTB78560B是30W、24V/48V 输入 DC/DC 转换器,使用自动跟踪定序,本页介绍了PTB78560B的产品说明、应用、特性等,并给出了与PTB78560B相关的TI元器件型号供参考。

PTB78560B - 30W、24V/48V 输入 DC/DC 转换器,使用自动跟踪定序 - 隔离式模块 - 电源模块 - TI公司(Texas Instruments,德州仪器)

产品描述

The PTB78560x is a series of 30–W rated isolated dc/dc converters, designed to operate from a standard 24–V or 48–V telecom central office (CO) supply. Housed in a 1×2 package, each model has a wide-adjust output voltage that can be set to one of the common intermediate bus voltages of 3.3 V, 5 V, or 12 V.

The PTB78560 series incorporates Auto-Track™, a feature that simplifies the power-up sequencing of multiple power modules that operate from the same intermediate bus. During a power-up cycle, modules with this feature have the capability of following a common ramp voltage applied to an input called Track. The PTB78560 series is specifically designed to control the Track voltage of any number of nonisolated downstream modules powered from its output. This ensures that the outputs of the downstream modules all rise simultaneously during power up. The PTB78560B (3.3 V) has an additional sequenced output, VO Seq, which also rises with the Track voltage. This allows the VO Seq output to power up simultaneously with the outputs from other power modules under the control of Auto-Track.

Whether used to facilitate power-up sequencing, or operated as a stand-alone module, the PTB78560 series includes many other features expected of high-performance dc/dc converter modules. Precise output voltage regulation is ensured with a differential remote sense. Operational features include an input undervoltage lockout (UVLO) and a dual-logic output enable control. Overcurrent and overtemperature protection ensure survival against load faults.

Typical applications include distributed power architectures in both telecom and computing environments, particularly complex digital systems requiring power sequencing of multiple power supply rails.

产品特性

  • Input Voltage: 18 V to 60 V
  • 30-W Total Output Power
  • Output Voltages: 3.3 V, 5 V, and 12 V
  • Wide-Output Adjust/Trim
  • Up To 88% Efficiency
  • Overcurrent Protection
  • Overtemperature Shutdown
  • Undervoltage Lockout
  • Input Overvoltage Protection
  • Auto-Track™ Power-Up Sequencing (Includes Sequenced Output with PTB78560B)
  • Smart-Sense Remote Sensing (PTB78560B)
  • Dual-Logic Enable Control
  • Space-Saving 1×2 Footprint
  • Surface Mount Package
  • Lead (Pb) - Free Option Available
  • 1500-Vdc Isolation
  • Agency Approvals (Pending): UL/cUL 60950, EN 60950
  • APPLICATIONS
    • Intermediate Bus Architectures
    • Telecom, High-End Computing Platforms
    • Multi-Rail Power Systems with Power-Up Sequencing

Auto-Track is a trademark of Texas Instruments.

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