WMSIC Electronic Components

Silergy SY58282NFAC

ModelSY58282NFAC
PackageSO-8
BrandSILERGY
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
silergy SY58282NFAC
Type
SILERGY
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SILERGY
Electronic Component
SY58282NFAC
Electronic Component
1
Package
SO-8
Electronic Component
LEDDriver
Electronic Component
0.192g
Electronic Component
1
Channel Count
1
Features
(SCP); LED;; (OTP)
Electronic Component
BM0265638760
Operating Temperature
65℃~+150℃
Switching Frequency
200kHz
Electronic Component
Electronic Component
Operating Voltage(DC)
7V~14.5V
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.

SY58282NFAC LED/照明驱动器产品概述

SY58282NFAC是矽力杰(Silergy)推出的单通道降压型LED专用驱动器,采用小型化SO-8贴片封装,针对中功率LED照明场景设计,具备宽输入电压范围、内置多重保护及宽温适应性,可满足工业、消费及户外照明的可靠性需求。

一、产品核心定位与基本信息

该器件属于高集成度LED驱动解决方案,核心特点是“内置功率开关管+单通道降压”,无需外部MOSFET即可实现LED串驱动,减少BOM成本与PCB空间;拓扑结构为降压(Buck),适配输入电压高于LED串总电压的场景,覆盖中功率LED(100mA~500mA输出电流)应用。

二、关键电气参数与拓扑特性

1. 核心电气指标

  • 输入电压范围:DC 7V~14.5V,覆盖主流电源场景:
    • 锂电池供电(7.4V/11.1V锂电池组);
    • 12V直流电源(适配器、车载12V系统);
  • 开关频率:固定200kHz,平衡效率与体积:
    中高频设计让电感/电容体积比低频方案小30%以上,同时开关损耗低于1MHz高频方案,EMC干扰更易通过滤波控制;
  • 内置开关管:集成低导通电阻功率管,简化电路设计,避免外部MOSFET的选型与散热问题;
  • 拓扑优势:降压结构转换效率可达85%~90%(典型应用下),适合将高输入电压转换为LED串所需的低电压大电流。

三、内置保护功能详解

该器件内置多重保护,提升系统可靠性,核心包括:

1. 短路保护(SCP)

输出端短路(LED串断开/短路)时,自动进入打嗝模式:开关管间歇性关断(占空比<10%),限制输出电流至安全值(通常<50mA),避免自身及LED损坏;故障排除后自动恢复,无需手动复位。

2. 过温保护(OTP)

内置结温检测,当结温超过150℃(与工作温度上限匹配)时,关断开关管;温度下降至120℃左右自动重启,防止热失控。

3. 过流保护(OCP)

输出电流超过额定值1.2~1.5倍时,限制电流至阈值,避免LED过流老化或损坏(与SCP联动,短路时触发OCP并进入打嗝模式)。

四、封装与环境适应性

1. 封装形式

采用SO-8贴片封装,尺寸为5.2mm×6.2mm,适合高密度PCB设计,兼容常规SMT生产流程,可直接替换同类小封装LED驱动器。

2. 宽温工作范围

  • 工作温度:-65℃~+150℃,覆盖极端环境应用:
    • 户外LED照明(庭院灯、路灯补光,适配低温/高温环境);
    • 工业设备指示灯(机床、控制柜状态灯,耐工业级温度波动);
    • 车载辅助照明(仪表盘背光、氛围灯,兼容车载温度范围)。

五、典型应用场景

该器件适配以下常见场景:

  1. 12V电源LED照明:橱柜灯、衣柜灯、小夜灯(输入12V,输出驱动35串LED,每串电流100300mA);
  2. 锂电池供电设备:应急灯、便携式台灯(输入7.4V锂电池,输出驱动2~4串LED);
  3. 工业状态指示:机床、PLC控制柜的电源/故障指示灯(宽温适配工业环境);
  4. 小型LED背光:小型LCD显示屏、车载显示屏背光(单通道驱动背光LED串)。

六、应用设计注意事项

  1. 元件选型:
    • 输入电容:10μF/16V陶瓷电容(滤除输入纹波);
    • 电感:10~22μH低DCR功率电感(避免饱和,DCR<0.1Ω);
    • 输出电容:1μF/16V陶瓷电容(稳定输出电压);
  2. 输出电流设定:由外部电阻Rset决定(公式:Iout=Vref/Rset,Vref典型值0.6V),如Iout=200mA时,Rset=3Ω;
  3. 散热设计:SO-8封装需在PCB上增加散热铜箔(引脚焊盘下铺大面积铜箔,连接地平面),避免结温过高;
  4. 保护验证:设计时需测试短路、过温保护,确保故障时器件可靠动作。

SY58282NFAC凭借高集成度、宽适配性及可靠保护,成为中功率LED照明领域的高性价比选择,适用于对成本、体积及可靠性有要求的应用场景。

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