WMSIC Electronic Components

Joulwatt JW1123SOTB#TRPBF JW1123SOTB

ModelJW1123SOTB#TRPBF
PackageSOT-23-6
BrandJoulwatt
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
Joulwatt JW1123SOTB#TRPBF
Type
JOULWATT
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JOULWATT
Electronic Component
JW1123SOTB#TRPBF
Electronic Component
1
Package
SOT-23-6
Electronic Component
LEDDriver
Electronic Component
PWM
Electronic Component
0.055g
Electronic Component
1
Features
(SCP); (OTP)
Electronic Component
BM0257676445
Switching Frequency
600kHz
Electronic Component
Electronic Component
Output Current
2A
Operating Voltage(DC)
4.5V~28V
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.

JW1123SOTB#TRPBF 产品概述

一、产品简介

JW1123SOTB#TRPBF 是杰华特(Joulwatt)推出的一款紧凑型同步降压 LED 驱动器,封装为 SOT-23-6。芯片内置功率开关和同步整流,支持宽输入电压 4.5V~28V,开关频率 600kHz,能够为 LED 提供最高 2A 恒流输出,适用于车规和通用照明场景。

二、主要特性

  • 工作电压(DC):4.5V ~ 28V,适配 5V/12V/24V 等常见电源系统。
  • 输出电流:恒流 2A,适合中功率至高功率 LED 串联应用。
  • 拓扑:同步降压(Synchronous Buck),内置开关管,降低外部元件数并提高效率。
  • 开关频率:600kHz,兼顾效率与体积,便于采用小尺寸电感与滤波器。
  • 调光方式:PWM 调光,响应快、兼容主流 MCU/驱动器。
  • 保护功能:过温保护(OTP)、短路保护(SCP)、欠压保护(UVP),提高系统可靠性。
  • 封装:SOT-23-6,适合紧凑 PCB 布局与自动贴片生产。
  • 包装:#TRPBF 表示卷带盘装、无铅环保(RoHS)工艺,便于量产采购与 SMT 贴装。

三、优势与应用场景

由于内置同步开关且工作在 600kHz,JW1123SOTB 在保持小体积的同时提升转换效率与热性能,适用于:

  • 汽车车灯、日行灯与示宽灯(适配 12V/24V 电源)
  • 室内照明、轨道灯、筒灯的恒流驱动模块
  • 广告牌、标识灯及便携照明设备
  • 需要 PWM 调光的舞台或氛围照明系统

四、典型设计与注意事项

  • 常规设计中,芯片与外接电感、肖特基二极管(若需要)及输出电容配合形成恒流回路;建议参考厂商推荐电感电流与滤波方案以保证稳定 2A 输出。
  • PWM 调光信号需与器件规定的阈值电平匹配,避免高速开关产生的干扰影响调光精度。
  • SOT-23-6 小封装热阻较大,高功率工作时应优化 PCB 散热(加大铜箔、设置过孔)。在高环境温度或长时间满载时,留有适当电流/温度裕量以触发过温保护前保障可靠性。
  • 布线建议:VIN 与 GND 做短、粗回路,开关节点(SW)走线最短并远离敏感信号,输入/输出旁放置贴片陶瓷电容以抑制纹波与 EMI。

五、可靠性与采购信息

JW1123SOTB#TRPBF 集成多重保护机制,适合商用与车用场景的基本可靠性要求。器件通过标准卷带(TR)包装,#TRPBF 表示无铅环保处理,便于直接进入 SMT 生产线。具体引脚功能、典型应用电路、推荐外部器件与 PCB 布局图请参考杰华特官方数据手册与参考设计。

如需器件参数表、典型效率曲线、BOM 推荐或参考电路图,可提供更详细的设计支持资料。

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