WMSIC Electronic Components

ETA ETA1617S2G

ModelETA1617S2G
PackageSOT23-6
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ETA ETA1617S2G
Type
ETA
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ETA
Electronic Component
ETA1617S2G
Electronic Component
1
Package
SOT23-6
Electronic Component
LEDDriver
Electronic Component
PWM
Electronic Component
0.054g
Electronic Component
1
Channel Count
1
Features
(OVP); LED; (OTP)
Electronic Component
BM0257282485
Operating Temperature
40℃~+85℃
Switching Frequency
800kHz
Electronic Component
Electronic Component
Output Current
60mA

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

ETA1617S2G 产品概述

一、产品简介

ETA1617S2G 是钰泰(ETA)推出的一款单通道升压型恒流 LED 驱动器,采用 SOT23-6 小封装,集成开关管,工作电压范围宽(2.7V 至 6V),适合便携式电源或电池供电的白光/单颗高亮 LED 驱动场景。器件开关频率高达 800kHz,支持 PWM 调光,最大输出电流可达 60mA,并具备过压保护(OVP)与过温保护(OTP),适合空间受限、对静噪和效率有要求的应用。

二、主要特性

  • 输入电压:DC 2.7V ~ 6V
  • 拓扑结构:升压(Boost),单通道
  • 内置开关管,开关频率:800kHz
  • 输出恒流能力:最高 60mA(典型单 LED 驱动)
  • 调光方式:PWM(外部 PWM 信号控制)
  • 保护功能:过压保护(OVP)、过温保护(OTP)
  • 工作温度范围:-40℃ ~ +85℃
  • 封装:SOT23-6,适合小型化设计

三、电气性能要点

ETA1617S2G 在 2.7V~6V 范围内稳定工作,内部开关管减小外围元件数量。800kHz 的高开关频率有利于减小电感体积与输出滤波电容,提升系统的小型化能力。PWM 调光接口可实现高频调光,避免可见闪烁。保护机制在异常工况下自动介入,提升系统可靠性。

四、典型应用场景

  • 手电筒与便携照明(单颗或小串 LED)
  • 移动电源/电池供电的补光灯
  • 仪表照明、指示灯和背光应用
  • 空间受限的消费电子小型照明模块

五、设计与选型建议

  • 电感选择:建议选择适配 800kHz 的低 DCR、高饱和电流贴片电感,常见初始取值范围 1µH~4.7µH,具体按输出电流与效率优化。
  • 整流二极管:若非同步方案,选择低压降肖特基二极管以减少损耗,封装与电流等级应满足峰值电流要求。
  • 输出电容:推荐低 ESR 电解或陶瓷电容,放置靠近芯片输出端以抑制纹波与提高稳定性。
  • PWM 调光:使用 100Hz~10kHz 以内的 PWM 信号可实现无频闪可见调光,高频调光可减少可见感知,但需注意效率与 EMI 影响。

六、封装与热管理

SOT23-6 小封装便于小型化设计,但散热受限。高功率或高占空比工作时需注意 PCB 散热:增大 GND 铜箔面积,设计散热钢琴键或加热散热垫,并保证电感、二极管布置合理以降低温升。

七、保护与可靠性说明

ETA1617S2G 集成 OVP 与 OTP,遇到输出异常或器件过热时会自动限制输出或进入保护关断,保证 LED 与器件安全。建议在系统级增加保险与过流检测以提高整体可靠性。

八、布局与实用注意事项

  • LX、二极管、电感应尽量靠近芯片,减小开关环路面积以降低 EMI。
  • VIN 与 GND 的去耦电容要靠近芯片 VIN/GND 引脚放置。
  • PWM/EN 信号线应避免与高电流开关节点平行走线,防止干扰。
  • 测试时关注热斑与效率曲线,在高环境温度下评估 OTP 行为。

ETA1617S2G 以其小封装、高频率与内置开关的集成度,适合对体积、成本和电池驱动效率有要求的小功率 LED 驱动应用。在实际设计中按上述建议选择外部被动元件并优化 PCB 布局,可获得较好的效率与稳定性。

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