WMSIC Electronic Components

CJ CJ9340T6

ModelCJ9340T6
PackageSOT-23-6L
BrandCJ
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+

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Technical data

Product details

19 specifications

Core information

Product name
CJ CJ9340T6
Type
CJ
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
CJ9340T6
Electronic Component
1
Package
SOT-23-6L
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.049g
Electronic Component
1
Features
Electronic Component
Type
Electronic Component
Electronic Component
BM0230014860
Operating Temperature
40℃~+125℃
Operating Voltage
2V~24V
Switching Frequency
1.2MHz
Electronic Component
Electronic Component
Output Voltage
600mV~28V

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

CJ9340T6 产品概述

CJ9340T6 是江苏长电/长晶(CJ)推出的一款高集成度升压型 DC-DC 转换器,适用于电池供电和工业温度等级的升压场景。芯片内部集成开关管,采用升压拓扑,开关频率高达 1.2MHz,可实现体积小、效率优的升压设计。器件工作电压范围广、静态电流低,非常适合对待机功耗要求严格的便携与物联网应用。

一、主要规格(关键参数一览)

  • 输出类型:可调
  • 拓扑结构:升压式(Boost)
  • 开关管:内置
  • 静态电流 (Iq):50µA
  • 输入电压范围:2V ~ 24V
  • 开关频率:1.2MHz
  • 输出电压范围:0.6V ~ 28V(可调)
  • 输出通道数:1 路
  • 工作温度:-40℃ ~ +125℃(工业级)
  • 封装:SOT-23-6L
  • 品牌:CJ(江苏长电/长晶)

二、功能与性能亮点

  • 高集成度:内部集成开关管,外围元件数量少,有利于缩小 PCB 面积和降低物料成本。
  • 高频工作:1.2MHz 的开关频率允许使用更小的电感和电容,适合空间受限的应用。
  • 低静态电流:50µA 的低静态电流可延长电池寿命,适合体积小、功耗敏感的系统。
  • 宽输入/输出电压范围:输入 2V24V、输出 0.6V28V,覆盖从单节锂电池到更高电压源的多种升压需求。
  • 工业温度等级:-40℃~+125℃,适用于工业级和严苛环境下的长期运行。

三、典型应用场景

  • 电池供电便携设备(手持终端、蓝牙设备、可穿戴)
  • 物联网节点与传感器(长期待机、低功耗唤醒)
  • 工业控制与测量设备(需要工业温度范围)
  • 小型背光与驱动电源(在合适功率范围内替代线性方案)

四、设计与外部元件建议

  • 电感:建议选择低直流电阻且能承受峰值电流的功率电感。高频工作下常用 1µH ~ 10µH 范围的单层或多层功率电感,具体取值依据输出电压与电流计算。
  • 整流/回流二极管:若电路采用外置肖特基二极管,请选择低正向压降、快速恢复的肖特基二极管;若芯片支持同步整流,则可省去外置二极管(以器件资料为准)。
  • 输出电容:选择低 ESR 的陶瓷电容以保证稳定性与低纹波。电容容量与电压等级按目标输出电流和纹波要求设计。
  • 输入去耦:在 VIN 引脚附近放置合适的旁路电容,减小输入回路电感,防止振荡。
  • PCB 布局:输入回路、开关节点与功率回流路径需尽量短且宽;将敏感引脚(反馈、补偿)远离噪声源并靠近器件引脚放置外部补偿网络。

五、可靠性与保护(设计需确认)

CJ9340T6 适配工业温度,并针对此类应用通常配合必要的保护机制(例如过流保护、热关断、欠压锁定等)。在最终设计前应参考厂商数据手册确认芯片内建保护特性,并在 PCB 级增加熔断、TVS 等保护器件以提高系统可靠性。

六、封装与选型建议

SOT-23-6L 小巧封装便于空间受限设计。选型时请核对最大输出功率与热性能要求:若工作在较高输出电流或高环境温度条件下,需评估封装的散热能力并考虑热设计或改用更大封装器件。

总结:CJ9340T6 是一款面向低功耗、体积受限及工业温度应用的高集成升压转换器,以 1.2MHz 高频、低静态电流和宽输入输出范围为主要优势。设计时请参考官方数据手册,按负载需求选择合适的外部被动器件与 PCB 布局以获得最佳性能。

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