WMSIC Electronic Components

HGSEMI ICM7555M/TR ICM7555M

ModelICM7555M/TR
PackageSOP-8
BrandHGSEMI
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
HGSEMI ICM7555M / TR
Type
HGSEMI
Minimum package
2500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
ICM7555M/TR
Electronic Component
1
Package
SOP-8
Electronic Component
555 Timer
Electronic Component
0.222g
Electronic Component
1
Features
Electronic Component
Electronic Component
BM0265591112
Electronic Component
1
Operating Temperature
40℃~+85℃
Operating Voltage
4.5V~15V
Operating Current
30uA
Electronic Component
Electronic Component
Electronic Component
2500

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

ICM7555M/TR 产品概述

一、产品简介

ICM7555M/TR 是华冠(HGSEMI)推出的单路低功耗定时器/振荡器器件,功能与经典 555 定时器兼容,但采用 CMOS 设计以实现更低的静态电流和更宽的工作电源范围。该器件适用于占空比可调的振荡、电平延时、单稳脉冲发生等时钟与计时场合,封装为标准 SOP-8,便于 PCB 布局与批量生产装配。

二、主要参数

  • 定时器数量:1 路
  • 工作电压:4.5 V ~ 15 V
  • 工作电流:典型 30 μA(低静态电流)
  • 工作温度:-40 ℃ ~ +85 ℃
  • 功能特性:占空比可调振荡(Astable)、单稳(Monostable)等
  • 封装:SOP-8(ICM7555M/TR)
  • 品牌:HGSEMI(华冠)

三、功能特点

  • CMOS 低功耗设计,静态电流极小,适合电池供电与能耗敏感型产品。
  • 支持占空比可调的稳态振荡,可通过外接电阻、电容精确设定频率与占空比。
  • 兼容常见 555 配置(占空比调节、单稳/多谐振荡),便于采用既有电路设计。
  • 宽电源电压范围,适用于 5 V、12 V 等多种电源系统。
  • 工作温度范围 -40 ℃ 至 +85 ℃,适合工业级环境。

四、典型应用

  • 振荡/脉冲发生:方波时钟、PWM 信号源、占空比可调的驱动信号。
  • 定时与延时:按键消抖、时间延迟电路、脉宽整形。
  • 控制与测量:脉冲宽度调制(PWM)控制、简易频率发生器、脉冲计时器。
  • 低功耗电子设备:便携式电子产品、电池驱动模块、功耗敏感的传感器节点。

五、设计与使用建议

  • 基本公式(参考经典 555/7555 配置):
    • 自激振荡频率 f ≈ 1 / [0.693 × (RA + 2RB) × C]
    • 占空比 D ≈ (RA + RB) / (RA + 2RB)
    • 单稳脉冲宽度 t ≈ 1.1 × R × C
  • 选择电阻与电容时注意元件偏差与温漂对定时精度的影响,需时精确场合建议使用精密电阻与低温漂电容。
  • 对于长时间常开/低频定时,优先选用低漏电电容(如钽电容或高品质陶瓷)以减小误差;同时避免使用过大电阻导致输入阈值误差累积。
  • 电源旁路:为保证定时稳定性,建议在电源引脚附近并联 0.01–0.1 μF 的陶瓷去耦电容,以抑制瞬态干扰。
  • 输出驱动:ICM7555M/TR 为 CMOS 输出结构,可直接驱动常见逻辑输入及轻负载。若驱动较大电流或感性负载,应加入限流或驱动级保护电路。
  • 热与封装:SOP-8 封装易于散热与安装,注意 PCB 走线与热管理以保证长期可靠性。

六、封装与可靠性

ICM7555M/TR 提供 SOP-8 封装,便于自动贴片与波峰/回流焊工艺。器件符合工业温度等级,适应宽温应用场景。采购与替换时可参考华冠产品编号与原厂技术文档,确保与设计规格一致。

总结:ICM7555M/TR 是一款面向低功耗与通用定时应用的单路 CMOS 定时器,具有宽电源范围、低静态电流和占空比可调等优势,适合各种时钟、脉冲与定时电路设计。按上述设计建议使用,可在精度、功耗与可靠性之间取得良好平衡。

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