WMSIC Electronic Components

CONSONANCE CN5502

ModelCN5502
PackageSOP-8-EP
BrandCONSONANCE
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CONSONANCE CN5502
Type
CONSONANCE
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CONSONANCE
Electronic Component
CN5502
Electronic Component
1
Package
SOP-8-EP
Electronic Component
LEDDriver
Electronic Component
PWM; Analog
Electronic Component
0.12g
Electronic Component
1
Channel Count
1
Features
(SCP)
Electronic Component
BM0264491151
Operating Temperature
40℃~+85℃
Switching Frequency
100Hz~160Hz
Electronic Component
5%
Output Current
1A

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

CN5502 恒流LED驱动器 产品概述

一、简介

CN5502 是由 CONSONANCE(上海如韵)推出的一款单通道恒流输出集成电路,工作电压范围宽广(DC 4V〜32V),输出电流最高可达 1A。芯片集成了开关管与短路保护电路,并提供 PWM 与模拟两种调光接口,适合舞台、建筑、汽车与各类高亮度 LED 驱动应用。SOP-8-EP 封装便于散热与 PCB 布局,工作温度范围 -40℃〜+85℃,可靠性满足工业级应用需求。

二、主要性能参数

  • 工作电压(DC):4V ~ 32V
  • 开关频率:100Hz ~ 160Hz(典型内部 PWM 约 130Hz)
  • 通道数:1 路
  • 最大输出电流:1A
  • 恒流精度:±5%
  • 调光方式:PWM 调光 / 模拟电压调光(支持剧院级模拟调光效果)
  • 保护功能:短路保护(SCP)
  • 开关管:内置开关晶体管(简化外部电路)
  • 工作温度:-40℃ ~ +85℃
  • 封装:SOP-8-EP

三、功能特点

  • 宽电压输入,适配 4V 到 32V 的多种电源环境,支持 12V/24V 等常见系统。
  • 内置开关管,简化外围结构,减小 PCB 板面积与设计复杂度。
  • 提供稳定的恒流输出,通过外接电流检测电阻设定 LED 工作电流,恒流精度达 ±5%。
  • 同时支持 PWM 与模拟调光:
    • PWM 调光接口配合外部 PWM 信号实现高精度亮度控制;
    • 内置约 130Hz 的 PWM 发生电路,可直接实现柔和、无级的模拟调光效果,适合舞台与剧院照明。
  • 短路保护功能在异常时可限制或关断输出,提高系统可靠性与安全性。
  • SOP-8-EP 散热良好,适用于中功率 LED 驱动场景。

四、典型应用

  • 舞台与剧院照明:支持模拟调光产生渐变与无跳变的光效。
  • 建筑与景观照明:恒流稳定,适合长串 LED 驱动。
  • 汽车灯具(辅助/装饰灯):工作电压兼容车载 12V/24V,具备短路保护。
  • 广告牌与商业照明:单通道高亮 LED 驱动,便于模块化设计。
  • 手持与便携照明设备:低压工作能力与集成化设计带来体积优势。

五、设计与布局建议

  • 电流设置:通过串联在 LED 串中的电流检测电阻设定输出电流。选择电阻与功率等级时应考虑最大工作电流及散热。具体电阻取值请参照 CN5502 详细资料与计算公式。
  • 输入去耦:在芯片电源输入端靠近引脚放置低 ESR 电解/固态电容与陶瓷电容,以抑制开关瞬态与降低 EMI。
  • 散热与封装:SOP-8-EP 的热焊盘(EP)应与 PCB 大面积铜箔或热沉连接,以保证热量快速导出,避免温升导致性能退化。
  • 布线要点:高电流路径(Vin、LED+/LED-、检测电阻)应采用宽铜线或多层过孔连通,减小电阻与热量集中;检测电阻应靠近芯片布置以保证检测精度。
  • 保护器件:若应用环境可能出现逆向接入或电压突波,建议在输入端增加 TVS 二极管与输入滤波器;如应用在感性负载附近考虑增加合适的缓冲元件以抑制振荡。
  • EMI 与频率考虑:CN5502 的开关频率处于 100Hz〜160Hz,频率较低,有利于降低开关损耗但需留意在某些光学感应或摄影场合可能产生可见闪烁,必要时通过外部 PWM 提高显影频率或优化驱动方式。

六、注意事项

  • 在并联或多路并联使用时,应确保每一路有独立电流检测与限流设计,避免通道间相互影响。
  • 工作温度超出额定范围会影响恒流精度与可靠性,请在高温环境下加强散热设计并做过温保护考虑。
  • 具体的电路连接、检测电阻计算、启动与保护模式等建议参考完整芯片数据手册与应用笔记,以实现可靠的工程级设计。

总结:CN5502 以其宽电压输入、内置开关管、1A 输出能力及双模调光支持,适合多种中低功率高亮度 LED 应用。合理的 PCB 布局与散热设计,加上遵循数据手册的电阻选型与保护措施,可获得稳定且响应良好的恒流驱动性能。

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