WMSIC Electronic Components

Broadcom ACPL-W346-500E

ModelACPL-W346-500E
PackageSOP-6-6.8mm
BrandBroadcom
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

20 specifications

Core information

Product name
Broadcom ACPL-W346-500E
Type
BROADCOM
Unit
Electronic Component
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
BROADCOM
Electronic Component
ACPL-W346-500E
Electronic Component
1
Package
SOP-6-6.8mm
Electronic Component
Logic Output Optocoupler
Electronic Component
0.338g
Electronic Component
1
Channel Count
1
CMTI(kV/us)
100kV/us
Features
Built-in Flip-Flop
Electronic Component
BM0230874015
Operating Temperature
40℃~+105℃
Operating Voltage
10V~20V
Type
DC

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

ACPL‑W346‑500E 产品概述

一、产品简介
ACPL‑W346‑500E 是 Broadcom(博通)出品的一款高隔离、单通道光隔离栅极驱动器,专为驱动功率开关器件(如IGBT、功率MOSFET)而设计。该器件在输入端采用高速LED‑光电耦合结构,在输出端集成功率驱动级,可在典型工业电力电子环境下提供可靠的信号隔离与强驱动能力。其主要面向逆变器、变频器、不间断电源(UPS)、光伏逆变、电机控制和开关电源等高 dv/dt 应用。

二、主要规格亮点

  • 隔离能力:5 kVrms(符合高电压隔离要求),适合需要保证一次侧与二次侧安全隔离的设计。
  • 抗共模瞬变:CMTI = 100 kV/µs,能在高 dv/dt 环境下保持稳定的逻辑传输和抗误动作。
  • 工作电压(输出电源 VCC):10 V ~ 20 V,兼容常见的驱动电压(如12 V、15 V)。
  • 输出峰值驱动能力:2.5 A(源/吸),可快速充放大功率器件栅极电荷,缩短开关时间。
  • 传播延迟:tpLH = 120 ns,tpHL = 120 ns(典型),提供对称且可预测的时序特性,便于系统级时序设计。
  • 输入特性:输入电流门限 FH = 4 mA,典型工作 LED 正向电流 If = 11 mA,正向压降 Vf ≈ 1.55 V,输入反向耐压 Vr = 5 V。
  • 功耗与温度:耗散功率 Pd = 550 mW(请参考数据手册进行热设计),工作温度范围 -40 ℃ ~ +105 ℃。
  • 封装:SOP‑6(宽度 6.8 mm),便于表面贴装工艺,并考虑隔离距离与爬电要求。

三、功能与应用场景
ACPL‑W346‑500E 将光隔离和高电流门驱动功能集成在单芯片中,适合以下典型应用:

  • 三相逆变器与电机驱动:为IGBT/MOSFET提供短延迟、高电流栅极驱动,降低开关损耗与功率器件应力。
  • 光伏逆变器与储能系统:在高电压隔离场景下提供可靠的驱动与抗干扰能力。
  • 服务器/电信电源、UPS:在对隔离等级和瞬态干扰敏感的应用中,确保控制信号完整传递。
  • 工业开关电源和功率转换器:适用于需要高 CMTI 的电力电子环境。

四、电气与时序特性(设计要点)

  • 输入侧:为保证驱动器可靠导通,输入 LED 的驱动电流应至少达到门限电流 FH(4 mA),推荐典型 If ≈ 11 mA。根据输入端控制逻辑电平与限流电阻计算所需的串联电阻,考虑 Vf ≈ 1.55 V。
  • 输出侧:器件能提供高达 2.5 A 的瞬时驱动能力,适合快速给栅极充/放电。为控制开关滞振与开关损耗,可在输出与栅极之间并联合适的门阻(Rg)和阻尼元件。
  • 时序:两向传播延迟均约 120 ns,设计时需考虑延迟与死区时间的配合,特别是在半桥或全桥拓扑中以避免短通态。
  • 抗干扰:CMTI = 100 kV/µs 显示在高 dv/dt 环境下误动作风险低,但布局仍需注意控制与功率走线的分离、接地点回流路径以及输出侧去耦电容。

五、封装与热管理
SOP‑6(6.8 mm)封装便于 PCB 布局与自动化贴装。尽管器件集成了驱动级,仍需关注功耗 Pd = 550 mW 的热耗散:

  • 在高温或连续开关频率较高的场景,应评估器件结温并提供足够的铜箔散热与通孔散热路径。
  • 输出驱动时的短时大电流会产生瞬时发热,建议基于典型工作条件参考数据手册中的热阻与功耗曲线做安全裕度设计。

六、使用建议与注意事项

  • 电源滤波:在输出侧 VCC 近侧放置 0.1 µF 陶瓷去耦电容,并在需要时加入 10 µF 的旁路电容以抑制瞬态电流需求。
  • 栅极阻尼:根据被驱动器件的栅电荷和系统开关速度,选择合适的门阻以限制峰值电流并控制 dv/dt。
  • 隔离与布线:保持输入与输出的爬电距离与走线清晰,避免飞线或穿越隔离沟道的噪声耦合。遵循系统的安全规范与认证要求。
  • 保护电路:在输出端考虑并联栅极箝位、TVS 或吸收网络来保护驱动器免受反向电压或瞬态冲击影响。
  • 驱动策略:在需要双极性驱动或快速关断时,可结合外部负向偏置或短时放电策略优化关断性能,但需遵从器件安全工作区。

总结
ACPL‑W346‑500E 是一款面向高隔离与高 dv/dt 场景的单通道光隔离栅极驱动器,结合 5 kVrms 隔离、100 kV/µs 的 CMTI 和 2.5 A 的瞬时输出能力,非常适合工业级功率电子应用。在实际工程中,通过注意输入驱动电流、输出侧去耦、栅极阻尼与热管理,可以发挥该器件在提升系统可靠性与开关性能方面的优势。欲获得更详尽的电气参数、绝对最大额定值和典型应用电路,请参考 Broadcom 官方数据手册。

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