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ElecSuper AO4485
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Elec Super AO4485
- Type
- ELECSUPER
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ELECSUPER
- Electronic Component
- AO4485
- Electronic Component
- 1
- Package
- SOP8
- Electronic Component
- 1 P
- Type
- P
- Electronic Component
- MOSFET
- Electronic Component
- 0.19g
- Electronic Component
- 1
- Electronic Component
- BM0228786380
- Operating Temperature
- 55℃~+150℃
- Power Dissipation(Pd)
- 3.2W
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage(Vdss)
- 40V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
AO4485 产品概述
一、产品简介
AO4485 是来自 ElecSuper（静芯微）的一款 P 沟道场效应管（MOSFET），单只器件采用 SOP8 封装，面向中低功率的高侧开关与功率管理场景。该器件在 40V 漏源耐压下提供较低的导通电阻和合理的开关性能，适合需要紧凑封装与良好热性能的应用。
二、主要电气参数
- 类型：P 沟道 MOSFET，数量：1 个
- 漏源电压 Vdss：40V
- 连续漏极电流 Id：11A
- 导通电阻 RDS(on)：13mΩ @ Vgs=10V；17mΩ @ Vgs=4.5V
- 耗散功率 Pd：3.2W
- 阈值电压 Vgs(th)：1.6V @ 250µA
- 栅极电荷 Qg：42nC @ 10V
- 输入电容 Ciss：2.5nF，输出电容 Coss：260pF，反向传输电容 Crss：180pF
- 工作温度范围：-55℃ ~ +150℃
- 封装：SOP8
三、核心特点与优势
- 低导通电阻：在 10V 驱动下 RDS(on) 仅 13mΩ，有助于降低导通损耗与发热。
- 宽电压与电流能力：40V 的耐压和 11A 的持续电流，适应常见车用或工业电源边界。
- 中等栅极电荷：Qg=42nC 表明开关切换时需要一定驱动能量，兼顾开关速度与 EMI 控制。
- 小型封装：SOP8 适合密集 PCB 布局并兼顾制造成本。
四、典型应用
- 高侧开关与负载断电控制（如电池保护、功率路径切换）
- 电源管理、电源开关与反向电流阻断
- 工业与通信设备的功率切换模块
- 需要紧凑封装的电源分配与保护电路
五、选用与 PCB 布局建议
- 驱动电压：若需最低导通损耗，建议在接近 10V 的 Vgs 下工作；在逻辑电平（4.5V）驱动时 RDS(on) 会升高。
- 栅极驱动与限流：由于 Qg 较大，建议配置合适的门阻（10Ω~100Ω 视开关速度与 EMI 要求），并评估驱动器的瞬态电流能力。
- 散热处理：SOP8 封装下 Pd=3.2W，建议在 PCB 下方做大面积铜箔散热和多条散热过孔，以降低结温并提高可靠性。
- 布线要点：尽量缩短电源回路与功率回路的走线，减小寄生电感；在换相节点加并联 RC 或 TVS 抑制过压与振铃。
六、封装与可靠性说明
SOP8 小型封装便于自动贴装与批量生产，但热阻较大，需通过 PCB 散热设计保证长期工作在安全结温范围内。器件工作温度覆盖 -55℃ 至 +150℃，适应较宽环境温度范围，但在高温高流条件下应留有裕量以确保寿命。
总结：AO4485 在 40V 耐压区间提供低 RDS(on) 与合理的开关成本，适合高侧开关、负载切换与功率管理应用。正确的驱动和 PCB 散热设计能充分发挥其性能。
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