WMSIC Electronic Components

On-Bright OB3330XCPA

ModelOB3330XCPA
PackageSOP-8
BrandOn-Bright
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

20 specifications

Core information

Product name
On-Bright OB3330XCPA
Type
ON-BRIGHT
Unit
Electronic Component
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ON-BRIGHT
Electronic Component
OB3330XCPA
Electronic Component
1
Package
SOP-8
Electronic Component
LEDDriver
Electronic Component
0.131g
Electronic Component
1
Channel Count
1
Features
(OVP); LED; (OTP); (SCP)
Electronic Component
BM0264971756
Operating Temperature
40℃~+150℃
Switching Frequency
300kHz
Electronic Component
Electronic Component
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.

On-Bright昂宝OB3330XCPA LED驱动产品概述

OB3330XCPA是昂宝电子(On-Bright)推出的一款面向LED照明领域的反激式驱动集成芯片,专为满足中小功率LED驱动的高效性、可靠性及宽环境适应性需求设计,集成多重保护机制,支持外置开关管扩展功率范围,是户外、工业及室内LED照明电源的实用选择。

一、品牌与核心定位

昂宝电子作为国内电源管理IC领域的知名厂商,其LED驱动产品线以“高性价比+高可靠性”为核心优势。OB3330XCPA属于该产品线的经典型号,聚焦隔离式中小功率LED驱动场景,针对反激拓扑结构优化电路设计,平衡了成本控制与性能表现,适配多种LED照明应用的安规与效率要求。

二、基础参数核心特性

OB3330XCPA的关键基础参数明确,满足主流LED驱动的设计需求:

  • 开关频率:固定300kHz(高频设计可有效减小变压器、电感等磁性元件的体积,利于电源模块的小型化集成);
  • 通道数:1通道(单路LED输出,适合集中式驱动或单组LED负载场景);
  • 工作温度范围:-40℃~+150℃(覆盖工业级宽温范围,可适应极端环境温度,如户外寒冷地区、高温车间或冷库照明);
  • 封装形式:SOP-8(8脚贴片封装,体积紧凑,兼容常规SMT自动化生产,便于驱动电源的小型化设计)。

三、多重保护机制详解

为提升LED驱动的可靠性与安全性,OB3330XCPA集成了四大核心保护功能,全面覆盖异常工况:

  1. 过温保护(OTP):芯片内部温度超过阈值时自动关断输出,防止器件因过热损坏,同时避免LED因温度过高加速光衰;
  2. 过压保护(OVP):输出电压超出设定值时触发保护,切断开关管驱动,避免LED过压击穿或电源端过压损坏;
  3. 短路保护(SCP):输出端发生短路故障时,芯片快速响应并锁定输出,防止持续大电流烧毁开关管与LED负载;
  4. 欠压保护(UVP):输入电压低于芯片工作阈值时,芯片进入欠压锁定状态,避免电压不足导致的不稳定工作或器件损坏。

四、拓扑结构与应用适配

OB3330XCPA采用反激式拓扑结构,该拓扑具有以下适配优势:

  • 支持隔离式驱动(满足LED照明的安规要求,避免高压直接接触LED);
  • 电路结构简单,外围元件少,降低电源设计成本与体积;
  • 适配中小功率LED负载(通常10W~50W范围,可通过外置开关管扩展至更高功率);
  • 适用于多种LED照明场景:户外路灯、庭院灯、室内面板灯、球泡灯、工业照明(如车间灯、冷库灯)等。

五、开关管配置特点

OB3330XCPA采用外置开关管设计,相比内置开关管方案具有明显灵活性:

  • 可根据实际功率需求选择合适的MOSFET(如不同耐压、电流等级的器件),避免内置管的功率限制;
  • 便于散热设计(外置MOSFET可通过散热片或PCB铜箔优化散热,提升功率密度);
  • 降低器件成本(用户可选择性价比更高的外置MOSFET,而非芯片内置的固定管)。

六、总结与应用场景

OB3330XCPA凭借宽温适应性、多重保护、外置开关管灵活性及反激拓扑的成本优势,成为中小功率LED驱动的可靠选择。其典型应用场景包括:

  • 户外照明:路灯、庭院灯、景观灯(适应-40℃低温与+150℃高温环境);
  • 工业照明:车间灯、冷库灯、防爆灯(满足工业级宽温与可靠性要求);
  • 室内照明:面板灯、球泡灯、筒灯(小型化封装适配紧凑型电源设计)。

综上,OB3330XCPA是一款性能均衡、可靠性高的LED驱动IC,可满足多种场景下的LED驱动需求。

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