WMSIC Electronic Components

MICRONE ME8115FD7G

ModelME8115FD7G
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 Electronic Component

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICRONE ME8115FD7G
Type
MICRONE
Minimum package
2000 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICRONE
Electronic Component
ME8115FD7G
Electronic Component
1
Package
DIP-7
Electronic Component
AC-DC Controllers and Regulators
Electronic Component
0.72g
Electronic Component
1
Features
(OTP); (SCP); (UVP); (OVP); (OCP)
Electronic Component
Electronic Component
Electronic Component
BM0265427884
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.

ME8115FD7G 产品概述

一、产品简介

ME8115FD7G 是南京微盟(MICRONE)推出的一款面向离线小功率开关电源的 AC-DC 控制器与稳压器,采用反激式拓扑并以 PWM 调制方式工作。器件封装为 DIP-7,适合批量生产的传统电源模块以及实验/样机开发。器件集成多重保护功能(过热、短路、欠压、过压、过流),并支持较宽的工作温度范围与较高的晶体管耐压,适合通用交流输入和多种应用场景。

主要基础参数(摘要)

  • 最大占空比:61%
  • 工作模式:PWM 调制
  • 拓扑结构:反激式
  • 开关频率:52 kHz ~ 66 kHz
  • 工作电压(VCC 范围):4.3 V ~ 9 V
  • 晶体管耐压:700 V
  • 工作温度:0 ℃ ~ +100 ℃
  • 主要保护:过热保护(OTP)、短路保护(SCP)、欠压保护(UVP)、过压保护(OVP)、过流保护(OCP)
  • 封装:DIP-7
  • 品牌:MICRONE(南京微盟)

二、功能与保护特点

ME8115FD7G 将电源控制与多种保护机制集成在单芯片中,能显著提升电源系统的可靠性与安全性:

  • 过热保护(OTP):当芯片或周边温度超过安全阈值时,自动限制或停止开关动作,防止因过热导致的器件损坏或失效。
  • 短路保护(SCP):检测到次级负载短路或严重过流事件时,快速响应以限制电流并进行保护,避免变压器和开关器件受损。
  • 欠压保护(UVP):当 VCC 或参考电压低于规定值时,芯片暂停正常开关动作,防止在欠压条件下出现不稳定的输出或误动作。
  • 过压保护(OVP):在输出侧异常升压或反馈回路失效时,芯片触发保护以阻止输出电压继续上升。
  • 过流保护(OCP):在持续或瞬态过流情况下限制开关导通时间或进入保护模式,保护开关器件与初级电路。

这些保护功能使 ME8115FD7G 特别适合需要高可靠性和安全防护的消费电子电源与工业小功率电源。

三、设计注意事项与应用建议

  1. VCC 供电与启动方案
    芯片的工作电压范围为 4.3 V ~ 9 V,设计时需保证 VCC 在芯片启动与稳态工作期间稳定。常见做法是通过初级高压启动电阻或辅助绕组供电,并配置合适的去耦和稳压电路以抑制瞬态。

  2. 最大占空比与变压器设计
    最大占空比为 61%,在设计反激式变压器时需考虑该占空比与工作频率范围(52–66 kHz)对磁心及绕组匝数的影响,确保在最大占空比和最大输入电压下不出现磁饱和。

  3. 开关晶体管耐压考虑
    芯片内部晶体管耐压 700 V,适合 85–265 VAC 通用输入场景,可在设计上为离线反激式电源提供足够的耐压裕量。但仍需合理设计 RCD 吸收或钳位电路以吸收漏感能量,防止过电压脉冲损伤开关管。

  4. 频率与 EMI/滤波
    52–66 kHz 的工作频段带来的 EMI 需要通过输入滤波、适当的布线和屏蔽来控制。设计中应配合 EMI 滤波器、共模电感及回路最小化策略,以满足整机 EMC 要求。

  5. 热管理与封装限制
    DIP-7 封装便于装配与调试,但热散能力有限。工作在 0–100 ℃ 的环境范围内时,需要对功率损耗进行评估,必要时通过散热片、良好的 PCB 过孔或通风设计提升热性能,避免触发过热保护导致降额或停机。

  6. 反馈与稳压实现
    作为反激式 PWM 控制器,通常需外接光耦和基于次级电压的误差放大/参考回路来实现主输出电压调节。设计时注意补偿网络的稳定性与动态响应,确保在负载变化时有良好瞬态性能。

四、典型应用场景

  • 手机与小型消费电子适配器、充电器
  • 机顶盒、路由器等通信设备的待机电源
  • 小功率家电控制板的辅助电源
  • 工业和仪器仪表类的小功率离线电源

五、总结

ME8115FD7G 是一款为离线反激式开关电源优化的 PWM 控制器,集成多重保护、适配通用交流输入并具备较高的晶体管耐压和适中的开关频率。其 DIP-7 封装适合生产与开发试验,推荐用于小功率适配器与辅助电源设计。实际使用时,需重视 VCC 供电方案、变压器设计、能量吸收与 EMI 抑制以及热管理措施,以发挥器件的可靠性与性能优势。若需更详细的引脚定义、典型电路或参数曲线,请参考厂商规格书或联系 MICRONE 技术支持。

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