WMSIC Electronic Components

MPS HF500GP-30

ModelHF500GP-30
PackagePDIP-8-7B
BrandMPS
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 22+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MPS HF500GP-30
Type
MPS
Minimum package
5000 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MPS
Electronic Component
HF500GP-30
Electronic Component
1
Package
PDIP-8-7B
Electronic Component
AC-DC Controllers and Regulators
Electronic Component
1g
Electronic Component
1
Features
(OTP); (SCP); (OVP)
Electronic Component
Electronic Component
Electronic Component
BM0058407794
Electronic Component
DCM
Operating Temperature
40℃~+125℃
Operating Voltage
12.5V~24V
Switching Frequency
25kHz
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

HF500GP-30 产品概述

一、产品简介

HF500GP-30 是 MPS 提供的一款固定频率反激式隔离开关稳压器,集成多模控制与过功率线路补偿功能,专为 12.5V–24V 直流母线的隔离电源设计。器件以 DCM 工作模式运行,具有完整的保护机制(过热保护 OTP、短路保护 SCP、过压保护 OVP),适用温度范围宽(-40℃ 至 +125℃),封装为 PDIP-8-7B,便于手工焊接与快速试验验证。

二、主要规格要点

  • 拓扑结构:反激式(Flyback)
  • 工作模式:DCM(断续导通模式)
  • 控制方式:固定开关频率,带多模控制与过功率线路补偿
  • 工作电压(输入参考):12.5V ~ 24V
  • 开关频率:25 kHz(固定)
  • 耗散功率 Pd:1.19 W
  • 内置开关晶体管耐压:700 V
  • 反馈方式:副边反馈(secondary-side feedback)
  • 保护功能:过热保护(OTP)、短路保护(SCP)、过压保护(OVP)
  • 工作温度范围:-40℃ ~ +125℃
  • 封装:PDIP-8-7B
  • 品牌:MPS

三、功能与设计亮点

  • 固定频率(25 kHz):便于变压器与磁性元件设计,频谱可控,有利于 EMI 管理与电磁兼容布局。
  • 多模控制:在不同负载条件下可实现稳定的输出与较高效率(例如在中高负载保持稳态控制,在轻载时实现节能策略),提高系统整体性能与可靠性。
  • 过功率线路补偿:当输入电压或线路条件变化时,器件通过补偿机制限制过量传输到次级的功率,降低器件与负载在极端线路条件下的应力。
  • DCM 工作方式:反激式 DCM 结构简化控制和变压器设计,利于快速瞬态响应与简单的磁性器件实现。

四、保护与可靠性

HF500GP-30 集成了关键的保护功能:

  • 短路保护(SCP):在输出短路或严重过流情况下,器件可限制或切断开关,保护变压器与负载。
  • 过压保护(OVP):当输出或辅助绕组监测到异常高压时触发,减少对后端电路的损害风险。
  • 过热保护(OTP):器件过热时进入保护,防止长期工作在热应力下导致失效。 这些保护有助于提高电源系统在工业与恶劣环境下的可靠性与安全性。

五、封装与热管理建议

PDIP-8-7B 封装适合手工焊接与样机验证,但在热管理上需要注意:

  • 器件耗散 Pd = 1.19 W,应在 PCB 设计中预留足够的散热铜箔面积,并考虑通过热导路径将热量传导至散热区域。
  • 对于连续高功率或高环境温度工况,建议采取增强散热措施(板上铜厚、散热片或辅助通风)。
  • 由于内置主开关耐压高(700 V),布板时注意保持引脚间和对地的爬电、间隙距离以满足安全绝缘要求。

六、应用场景与注意事项

适用场景:

  • 12.5V–24V 直流母线的隔离电源模块
  • 工业控制与自动化设备的辅助电源
  • 通信设备、测控仪表、电源模块样机与小批量产品
  • 需要隔离且对保护与可靠性有较高要求的电源设计

设计注意事项:

  • 次级反馈实现需合理设计光耦或副边参考电路,确保环路稳定性与足够的动态裕量。
  • 反激变压器与能量回收路径(吸收/箝位电路)应按最大反射电压与浪涌能量设计,利用器件 700 V 耐压裕量但仍应加防护元件(箝位/吸收网络)。
  • 布局上要优化高电压回路与开关节点的走线,控制寄生电感与环路面积,降低 EMI 与开关杂散振荡。

七、总结

HF500GP-30 是一款面向隔离反激电源的实用型开关稳压器,集成多模控制与过功率线路补偿,工作在 DCM 模式并以固定频率(25 kHz)运行,适配 12.5V–24V 的直流输入场合。器件具备完整的保护功能和宽温度范围,PDIP-8-7B 封装便于样机验证与更换。合理的磁性设计、热管理与副边反馈实现能使该器件在工业与通信等应用中发挥稳健的电源作用。

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