WMSIC Electronic Components

ETA ETA6280S2F

ModelETA6280S2F
PackageSOT23-5
BrandETA
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ETA ETA6280S2F
Type
ETA
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ETA
Electronic Component
ETA6280S2F
Electronic Component
1
Package
SOT23-5
Type
Load Switch
Electronic Component
Power Electronic Switch
Electronic Component
0.06g
Electronic Component
1
Channel Count
1
Features
Current; Output
Electronic Component
BM0226462299
Resistor
70mΩ
Operating Temperature
40℃~+85℃
Operating Voltage
2.1V~6V
Current
2.2A

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

ETA6280S2F 产品概述

ETA6280S2F 是钰泰(ETA)推出的一款单通道负载开关,专为便携、电池供电及空间受限的电子系统提供安全、可控的电源通断解决方案。器件集成了多项保护功能和低导通电阻特性,能在 2.1V 至 6V 的电压范围内稳定工作,适合多种电源管理场景。

一、主要特性一览

  • 类型:单通道负载开关(Load Switch)
  • 工作电压范围:2.1V ~ 6V
  • 最大连续电流:2.2A
  • 导通电阻(RDS(on)):典型 70 mΩ
  • 通道数:1
  • 输入控制逻辑:高电平有效(EN 为高电平时导通)
  • 过热保护(OTP)、过压保护(OVP)、欠压保护(UVP)
  • 工作温度范围:-40℃ ~ +85℃
  • 封装:SOT23-5
  • 品牌:ETA(钰泰)

二、功能与保护机制说明

ETA6280S2F 将基础的开关功能与多重保护机制结合,提升系统可靠性:

  • 过热保护(OTP):在芯片内部温度超过安全阈值时触发,自动关闭或限制输出,防止器件及周边电路因过热受损。
  • 过压保护(OVP):输入或输出电压超出安全范围时,保护电路会介入以避免下游电路遭受高压冲击。
  • 欠压保护(UVP):当输入电压低于设定阈值时,器件可避免在不稳定电源条件下误动作或对下游产生异常影响。

这些保护功能使 ETA6280S2F 特别适合对短路、过载和电源异常敏感的应用场景,提高系统安全性和可靠性。

三、电气性能与使用要点

  • 导通电阻为 70 mΩ,与 2.2A 的最大连续电流组合,可在中等负载下保持较低功耗和较小的压降。设计时需注意功耗 P = I^2·R,连续大电流情况下器件自身发热应考虑散热及降额处理。
  • 控制逻辑为高电平有效,便于与 MCU、PMIC 等数字控制信号直接连接。在设计时确认 EN 引脚的电平范围与系统控制器兼容,并考虑上拉/下拉电阻以定义默认状态。
  • 工作电压 2.1V~6V 覆盖常见的 3.3V、5V 电源及部分锂电池供电场景。用于 USB(5V)或电池供电系统时应确认外围电路的瞬态和稳态条件。

四、封装与热管理

  • SOT23-5 小封装占板面积小,适合空间受限的便携设备和消费电子产品。
  • 由于最大连续电流达 2.2A,设计 PCB 时应为器件提供合适的散热路径:加宽铜箔、增加过孔或使用散热层以降低结温,必要时评估在高温或持续大电流工作下的降额方案。
  • 建议在输入侧和输出侧靠近器件各布置旁路电容以抑制瞬态尖峰、稳定电源以及减少 PCB 上的电压跌落。

五、典型应用场景

  • 移动终端与便携设备:供电路径控制、功耗管理与电源顺序控制
  • 电池供电系统:电池上电/下电控制与过流、过压保护
  • IoT 与可穿戴设备:节能方案中作为电源开关,按需供电
  • USB 外设与模块:为 5V 外围器件提供可控上电与保护
  • 工业与消费类电子:对电源异常敏感的负载保护与隔离

六、设计建议与注意事项

  • 输入/输出端应放置低 ESR 旁路电容,抑制开关瞬态及改善稳定性。根据负载特性选择适当电容值与布局。
  • 考虑到导通电阻带来的功耗,若长期接近 2.2A 工作,需评估结温并适当降额使用或增加散热措施。
  • 若系统存在严重的浪涌或大电流瞬态,推荐在上游增加限流或浪涌抑制电路,避免因过流触发保护频繁跳闸。
  • 确认 EN 控制信号的上升/下降时间与系统需求匹配,必要时在控制端加滤波或缓冲以避免误触发。

七、总结

ETA6280S2F 是一款集基础开关功能与多重保护于一体的单通道负载开关,适合对体积、可靠性和成本有综合要求的中低功率应用。其 2.1V~6V 的宽工作电压、2.2A 的连续电流能力以及 OTP/OVP/UVP 等保护机制,使其在便携设备、电池供电系统及消费类电子中具有良好的应用前景。设计时应注意热管理与旁路电容布局,以充分发挥器件性能并保证长期可靠性。

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