WMSIC Electronic Components

MICRONE ME2170ASG

ModelME2170ASG
PackageSOP-8
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MICRONE ME2170ASG
Type
MICRONE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MICRONE
Electronic Component
ME2170ASG
Electronic Component
1
Package
SOP-8
Type
DC-DC
Electronic Component
LEDDriver
Electronic Component
0.183g
Electronic Component
1
Electronic Component
BM0227695474
Operating Temperature
40℃~+150℃
Switching Frequency
800kHz~1.2MHz
Electronic Component
Electronic Component
Output Current
750mA
Operating Voltage(DC)
2.5V~6V
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.

ME2170ASG 产品概述

ME2170ASG 是南京微盟(MICRONE)推出的一款高频升压型 DC‑DC LED 驱动器,采用 SOP‑8 封装,内部集成开关晶体管,适合电池供电或车载及工业类中高亮 LED 驱动场合。芯片工作电压范围宽(2.5V~6V),开关频率高(800kHz~1.2MHz),峰值输出能力强,器件在-40℃~+150℃的温度范围内可靠工作,具备欠压保护(UVP),可实现稳健的升压恒流驱动。

一、主要规格与特点

  • 类型:DC‑DC 升压(Boost)LED 驱动器
  • 输入电压范围:2.5V ~ 6V
  • 开关频率:800kHz ~ 1.2MHz(高频工作,器件尺寸小)
  • 最大输出电流:750mA(适合中大功率 LED)
  • 拓扑结构:升压,内部集成开关管(简化外部设计)
  • 保护功能:欠压保护(UVP)
  • 工作温度:-40℃ ~ +150℃(适用于严苛环境)
  • 封装:SOP‑8(便于手工与自动化装配)

二、典型应用场景

  • 手持设备/便携式照明:3.7V 锂电池给单颗或多颗串联高亮 LED 供电
  • 车用照明与信号灯(需配合车规外设)
  • 工业照明、指示灯、警示灯等需要高可靠温度耐受的场合
  • 需要小尺寸、高频率以减小被动器件体积的空间受限应用

三、设计与选型建议

  • 电感:选择磁芯和电流容量适配的升压电感,饱和电流建议大于 1.0A 以保证峰值电流余量;低 DCR 有利于提高效率。因开关频率较高,优先选择在 0.5MHz‑2MHz 有良好性能的元件。
  • 整流二极管:优先使用低正向压降的肖特基二极管,电流额定值≥750mA,耐压需高于目标输出电压加余量。
  • 电容:输入侧和输出侧使用低 ESR 的陶瓷电容(如 X5R/X7R),容量视实际输出电流和纹波要求选择,常见范围 10µF~47µF。布局上将输入电容紧邻 VIN‑GND 引脚放置。
  • 热设计:SOP‑8 虽便于散热,但在高电流、高温环境下需考虑 PCB 铜箔散热与热过孔(via)配置,增加散热铜箔面积和多处过孔有助于降低结温。
  • 元件耐温:器件工作温度上限 150℃,周边被动元件应选用同等或更高温度等级(如 125℃/150℃ 级别)以保证可靠性。

四、保护与可靠性说明

ME2170ASG 内置欠压保护,当输入电压低于设定阈值时自动停止切换,避免异常工作导致输出不稳定或元件损坏。建议在系统中增加输入反接保护和熔断保护等外围措施以提升整机可靠性。长期在高温环境运行时,请确保周边器件、焊接工艺与 PCB 材料符合高温要求。

五、PCB 布局与 EMI 建议

  • 最短回路:将开关节点(SW)、电感、肖特基与输出电容构成的高频回路布线最短;增大地铜箔,减少回流环路面积。
  • 去耦:VIN 与 GND 旁放足够去耦电容,靠近芯片引脚放置。
  • EMI 抑制:高频工作带来较高电磁干扰,必要时在输入端加入共模滤波或差模电感,并优化地线与走线以降低辐射。
  • 热管理:在 SOP‑8 下方及 VIN、GND 引脚周围铺厚铜并打散热过孔,提升散热效率。

ME2170ASG 以其高频、小体积、内置开关与宽温工作能力,适合对尺寸、效率与环境适应性有要求的中高功率 LED 驱动应用。实际应用时,请参考厂商完整数据手册进行参数校核与参考电路设计。

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