WMSIC Electronic Components

MICRONE ME8115D7G

ModelME8115D7G
PackageDIP-7
BrandMICRONE
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICRONE ME8115D7G
Type
MICRONE
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICRONE
Electronic Component
ME8115D7G
Electronic Component
1
Package
DIP-7
Electronic Component
AC-DC Controllers and Regulators
Electronic Component
0.74g
Electronic Component
1
Features
(OTP); (SCP); (UVP); (OVP); (OCP)
Electronic Component
Electronic Component
Electronic Component
BM0227600489
Electronic Component
PWM
Operating Temperature
0℃~+100℃
Operating Voltage
4.3V~9V
Switching Frequency
52kHz~66kHz
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.

ME8115D7G 产品概述

一、产品简介

ME8115D7G 是南京微盟(MICRONE)推出的一款反激式 AC-DC PWM 控制器,采用 DIP-7 封装,集成高压开关晶体管,晶体管耐压达 700V。器件工作电压范围为 4.3V~9V,适用于传统离线开关电源的主控方案,尤其适合待机电源、小功率适配器与 LED 驱动等反激拓扑应用。

二、主要特性

  • 工作模式:PWM 调制,反激式拓扑专用。
  • 最大占空比:57%,有利于限制一次侧导通时间,便于变压器设计与稳态控制。
  • 开关频率:52kHz~66kHz(典型),兼顾效率与尺寸。
  • 内置保护:欠压保护(UVP)、过热保护(OTP)、短路保护(SCP)、过压保护(OVP)、过流保护(OCP)。
  • 热性能与功耗:器件耗散功率 Pd=1000mW,工作温度范围 0℃~+100℃。
  • 封装:DIP-7,便于通孔焊接与手板制作。

三、典型应用

  • 手机/小型适配器待机电源
  • 小功率开关电源(SMPS)与模块电源
  • LED 驱动与照明电源(低功率)
  • 家电待机和辅助电源

四、设计要点与建议

  • 变压器设计应考虑最大占空比 57% 与工作频率范围,确保一次侧能量在最大线电压下满足输出功率要求并留有安全裕度。
  • 因开关频率在 50kHz 以上,注意磁芯选材与漏感控制,必要时采用 RCD 或吸收网络抑制开关尖峰。
  • 保护功能齐全,但仍建议在设计中加入适当的电流采样电阻、过压分压、热贴片监测点以及可靠的软启动/启动电阻网络。
  • PCB 布局应将高压开关回路走短且粗的铜线,次级与控制地分离,辅助绕组返回点靠近控制器 Vcc。

五、保护功能说明

ME8115D7G 集成 UVP/OVP/OCP/SCP/OTP,能在异常工况下保护器件与负载。通常表现为触发保护后进入停机或自动重试(具体行为应参考厂商 datasheet),设计时仍需配合合理的外部限流与热设计以避免频繁触发影响系统可靠性。

六、封装与热管理

DIP-7 封装便于手工焊接与长期测试,但散热能力受限。考虑到 Pd=1000mW,长期高温环境下应保证良好散热路径:增大焊盘铜厚、避免高温元件邻近,并在必要时采用外部散热或减小负载以延长寿命。

七、选型与工程建议

在选型时关注最大输出功率需求、输入电压范围、效率与 EMI 要求。若需更高环境温度或更高功率,应考虑封装与耗散能力更强的替代器件。参考厂商典型应用电路进行外围元件选型(RCD、箝位、滤波、电阻/电容的额定值与耐压)。

八、总结

ME8115D7G 为经济、功能完整的反激式 PWM 控制器,适合多种小功率离线电源场景。其 700V 高压晶体管与多重保护机制,配合 52kHz~66kHz 的工作频率和 57% 的最大占空比,为常见消费类电源提供稳健的控制核心。设计时注意热管理、变压器和吸收电路的配合,可获得良好的性能与可靠性。

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