WMSIC Electronic Components

HGSEMI ULN2003AM/TR ULN2003AM

ModelULN2003AM/TR
PackageSOP-16
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI ULN2003AM / TR
Type
HGSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
ULN2003AM/TR
Electronic Component
1
Package
SOP-16
Electronic Component
Darlington Transistor Array
Electronic Component
0.324g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0227597197
Operating Temperature
40℃~+85℃
Current(on)
0.93mA
Current(off)
100uA
Electronic Component
Electronic Component
Electronic Component
2500
Collector Current(Ic)
500mA

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

ULN2003AM/TR 产品概述(华冠 HGSEMI)

本文档面向电子设计与采购工程师,介绍华冠(HGSEMI)ULN2003AM/TR 七路达林顿晶体管阵列的主要特性、典型应用和设计注意事项,便于快速判定该器件在系统中的可行性与使用方法。

一、产品简介

ULN2003AM/TR 为高集成度七路达林顿晶体管阵列,采用 SOP-16 封装(适配贴片生产线的 TR — Tape & Reel 卷带包装)。器件内部包含七组 NPN 达林顿对,每路集成基极限流电阻与共用的反向续流二极管连接点(COM),便于直接驱动继电器、电磁阀、步进电机线圈、LED 阵列等感性或阻性负载。

主要基础参数(典型/最大值):

  • 通道数:7 路
  • 集电极-发射极击穿电压 Vceo:50 V
  • 单通道最大集电极电流 Ic:500 mA
  • 最大输入电压 VI:30 V
  • 工作温度范围:-40 ℃ ~ +85 ℃
  • 集电极漏电流 Ice(待机泄漏):约 20 μA
  • 输入电流(ON)典型:0.93 mA
  • 输入电流(OFF)典型:100 μA
  • 封装:SOP-16(ULN2003AM/TR,TR 表示卷带包装)
  • 品牌:HGSEMI(华冠)

二、内部结构与引脚说明

器件为七组达林顿对的集成,内部为每一路输入端串联基极电阻,并在输出端配置二极管连接至 COM 引脚,用于吸收感性负载的反向电压。标准引脚功能分配(与常见 ULN2003 兼容):

  • 引脚17:IN1IN7(输入)
  • 引脚8:GND(共地)
  • 引脚9:COM(续流二极管公共端,通常接至负载供电正极)
  • 引脚1016:OUT7OUT1(输出,注意输出与输入的对应关系)

在设计时,感性负载(继电器、线圈)应将 COM 接到正供电以启用内部续流二极管,避免尖峰电压损害器件。

三、主要特性与优势

  • 七路高密度输出,节省 PCB 面积,适合多通道驱动场景。
  • 高电压耐受:50 V 的 Vceo 可直接驱动较高电压的负载。
  • 每路可承受最大 500 mA,适用于中小功率继电器和小电机绕组驱动(需关注功耗与封装散热)。
  • 内置基极限流电阻,逻辑侧驱动电流低(典型 ON 输入电流 0.93 mA),便于与 MCU、TTL/CMOS 直接接口。
  • 内置续流二极管(COM),简化外部器件,利于驱动感性负载。
  • 工作温度宽(-40 ℃ ~ +85 ℃),适用工业级环境。

四、典型应用场景

  • 继电器驱动板(工业控制与自动化)
  • 步进电机驱动(与驱动器配合,用于小型一体化模块)
  • 灯阵、指示灯与 LED 驱动(需注意总电流与发热)
  • 低速马达、溶液泵、电磁阀等中小功率执行器控制
  • 单片机/逻辑电路的电平放大、低侧开关

五、设计与使用建议

  • COM 引脚:在驱动感性负载(线圈、继电器)时,务必将 COM 连接到负载的正极/电源线上,使内部续流二极管导通回流,抑制反向尖峰。
  • 散热与功率限制:单路 500 mA 为器件极限,请根据实际工作电流做热功率计算并留有裕量。多通道同时工作时,需关注封装的总功耗、PCB 铜箔散热面积及环境温度,必要时采用散热铜箔或降低工作电流。
  • 输入驱动:典型输入开启电流约 0.93 mA,可直接由 MCU GPIO 驱动。关断时输入漏电约 100 μA,应在系统静态功耗预算中考虑。
  • 漏电流:集电极漏电约 20 μA,作为关断泄漏参考,适用于对泄漏敏感的低电流场景时需留意。
  • 保护与滤波:为提高可靠性,关键应用建议在继电器等负载端加缓冲电容或 RC 抑制网络,用于滤除高速开关噪声;若负载电感或电源质量较差,可在供电侧加入合适的去耦电容与抑制元件。

六、封装与采购信息

  • 封装形式:SOP-16 表面贴装,适配自动化贴装及回流焊工艺。
  • 包装方式:TR 表示 Tape & Reel,便于电子制造线直接取料。
  • 选型提示:型号 ULN2003AM/TR(华冠 HGSEMI),如需样片或批量,请与供应商确认完整的器件规格书(datasheet)、可靠性测试报告与最小采购量。

结语:ULN2003AM/TR 提供了成熟、可靠的七路低侧开关解决方案,适合多种中小功率驱动场景。设计时需结合实际电流、功耗与散热条件进行余量评估,正确使用 COM 续流通道以保护器件并延长系统寿命。若需针对此器件的电路例程或热设计计算,可提供更具体的负载参数以便给出针对性建议。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

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.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.