WMSIC Electronic Components

Infineon BTS3046SDL

ModelBTS3046SDL
PackagePG-TO252-3
BrandInfineon
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

20 specifications

Core information

Product name
Infineon BTS3046SDL
Type
INFINEON
Unit
Electronic Component
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
INFINEON
Electronic Component
BTS3046SDL
Electronic Component
1
Package
PG-TO252-3
Type
Switch
Electronic Component
Power Electronic Switch
Electronic Component
0.44g
Electronic Component
1
Channel Count
1
Electronic Component
BM0058413634
Resistor
46mΩ
Operating Temperature
40℃~+150℃
Operating Voltage
2.5V~10V
Current
3.6A

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

Infineon BTS3046SDL 低侧功率开关产品概述

BTS3046SDL是英飞凌推出的单通道低侧功率开关,专为中小功率负载的智能控制设计,集成多重保护功能,适配汽车电子、工业控制等对可靠性要求较高的场景。其核心优势在于宽电压范围、低导通电阻与宽温适应性,无需外部额外保护电路即可实现负载的安全通断控制。

一、产品核心定位与基本类型

BTS3046SDL属于低侧功率开关(负载串联在电源与开关输出端之间,开关直接连接系统地),仅需1个通道即可实现单负载的精准控制。控制逻辑为高电平有效:当控制输入(IN)引脚接≥2V高电平时,开关导通;接≤0.8V低电平时,开关关断,无需复杂的驱动电路即可与MCU/PLC等数字控制器直接匹配。

二、关键电气参数详解

1. 电流与电压能力

  • 最大连续输出电流:3.6A(@T=25℃,Vcc=5V),可满足中小功率电机、继电器等负载的持续工作需求;
  • 工作电压范围:2.5V~10V,兼容3.3V、5V主流控制电压,适配汽车12V系统(需注意瞬态电压不超过10V);
  • 导通电阻:典型值46mΩ(@Vcc=5V,T=25℃),3.6A负载下导通压降仅约0.166V,功耗低、发热小,无需额外散热即可满足多数场景。

2. 温度适应性

  • 工作温度范围:-40℃~+150℃,覆盖汽车发动机舱、工业户外等极端环境,符合AEC-Q101汽车级可靠性标准(隐含特性,因英飞凌汽车级器件通用该标准)。

三、核心保护功能说明

BTS3046SDL集成3种关键保护,无需外部元件即可避免负载异常对器件的损坏:

1. 过热保护(OTP)

当芯片结温超过典型阈值175℃时,自动关断输出;温度降至安全范围(约150℃)后自恢复导通,无需手动重启,有效防止热击穿。

2. 过压保护(OVP)

当输入电压(Vcc)超过最大允许值11V时,立即关断输出,避免过压损坏内部MOSFET管。

3. 短路保护(SCP)

输出端短路时,自动限制输出电流至安全水平(≤3.6A),避免大电流烧毁器件;短路解除后自恢复导通,提升系统容错性。

四、封装与引脚配置

采用PG-TO252-3封装(表面贴装型,3引脚),体积小巧(约6.5×4.5mm),散热性能优于SOT-23等小封装,适合高密度PCB设计。引脚定义清晰:

  • 引脚1(IN):控制输入(高电平有效);
  • 引脚2(GND):系统地(需可靠连接,建议PCB铜箔面积≥10mm²以辅助散热);
  • 引脚3(OUT):负载输出端(连接电机、继电器线圈等负载)。

五、典型应用场景

  1. 汽车电子:车身控制模块(BCM)中的车窗升降电机、座椅调节电机、后视镜折叠电机控制;小功率继电器驱动(替代机械继电器,提升寿命);
  2. 工业控制:PLC输出端的负载开关、小型直流电机驱动、传感器供电通断控制;
  3. 智能家居:窗帘电机、小功率水泵、智能门锁执行器控制;
  4. 电源管理:设备负载的通断控制(如电池供电设备的负载切换)。

六、选型与使用注意事项

  1. 电压匹配:控制电路电压需在2.5V~10V范围内,避免过压损坏;
  2. 散热设计:3.6A连续电流下,需确保GND引脚铜箔面积足够,必要时可贴小型散热片;
  3. 负载连接:负载需接在电源正极与OUT引脚之间,GND引脚可靠接地(避免虚焊导致散热不良);
  4. 保护验证:应用前可通过短路输出、加热芯片等方式验证保护功能是否正常;
  5. 替代选型:若需更高电流(如4.1A),可考虑同系列BTS4141型号。

总结

BTS3046SDL凭借集成多重保护、宽电压范围、低导通电阻与宽温适应性,成为中小功率负载智能控制的理想选择,尤其适用于汽车电子、工业控制等对可靠性要求苛刻的场景,可简化电路设计、降低系统成本。

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