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AOS AOZ1353DI-01
Configuration
1 options
Configuration
22+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- AOS AOZ1353DI-01
- Type
- AOS
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- AOS
- Electronic Component
- AOZ1353DI-01
- Electronic Component
- 1
- Package
- DFN-12-EP(3x3)
- Type
- Load Switch
- Electronic Component
- Power Electronic Switch
- Electronic Component
- 0.05g
- Electronic Component
- 1
- Channel Count
- 1
- Features
- Current
- Electronic Component
- BM0258716071
- Resistor
- 40mΩ
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 3.4V~5.5V
- Current
- 3.5A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
AOZ1353DI-01 产品概述
一、概述
AOZ1353DI-01 是一款单通道 N 沟负载开关，专为 3.4V 至 5.5V 供电系统设计，最大连续导通电流可达 3.5A。器件以低导通电阻（典型 40mΩ）实现低压降和低发热，适合 USB 电源分配、系统电源控制与外设供电保护等场合。输入控制为高电平有效，使系统控制逻辑集成简单直观。
二、主要参数
- 类型：负载开关（N 通道）
- 通道数：1
- 控制逻辑：高电平有效 EN
- 工作电压：3.4V ~ 5.5V
- 最大连续电流：3.5A
- 导通电阻：40mΩ（典型值）
- 工作温度范围：-40℃ ~ +85℃
- 封装：DFN-12-EP（3×3 mm）
- 品牌：AOS
三、关键特性与保护
器件集成多种保护功能以提升系统可靠性：
- 过流保护（OCP）：在过载或短路时限制电流，保护负载与开关本体。
- 过热保护（OTP）：在器件温度异常升高时关闭通路以防损坏。
- 过压保护（OVP）与欠压保护（UVP）：保障对上下游电源异常的响应，避免对后级电路造成冲击。
这些保护配合低 RDS(on) 可在保证性能的同时减小热应力。
四、封装与热管理
DFN-12-EP（3×3）带露热焊盘，利于热量通过 PCB 散发。根据最大电流与导通电阻估算，满载时功耗约为 P = I^2·R ≈ 0.49W（3.5A 时），因此在 PCB 设计上应留足铜箔面积与热沉过孔，加速散热。推荐在热焊盘下布置热 vias 并扩大 VIN/VOUT 的铜箔连接，确保器件在高温环境下的可靠工作。
五、典型应用
- USB/Type-C 电源开关与端口保护
- 嵌入式系统电源管理与外设上电控制
- 电池供电设备的负载连接/切换
- 工业控制与仪表中对外设的可控供电
六、设计建议与注意事项
- 在 VIN 端和 VOUT 端附近放置足够的去耦电容以抑制瞬态电流与稳定输入电压；推荐使用低 ESR 电容。
- 布局时尽量缩短高电流回路走线，增大铜厚与铜面积，使用多条过孔连接顶层与内层或底层散热区域。
- 考虑 OCP/OTP 的动作特性对启动和短路恢复行为的影响，必要时在系统层面增加软启动或限流策略以降低触发频率。
- 在 85℃ 以上环境或接近最大电流时应考虑合适的电流裕量或外部散热措施以保证长期可靠性。
总结：AOZ1353DI-01 提供了在 3.4–5.5V 范围内、最高 3.5A 的稳健负载开关解决方案，低 Rds(on) 与完善的保护功能适合对热管理和供电可靠性要求较高的便携与工业应用。
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