Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
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)
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:
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。
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。
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。
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。
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。
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。
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。
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。
Request for quote
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products