WMSIC Electronic Components

MC33908NAE

ModelMC33908NAE
PackageLQFP-48(7x7)
BrandNXP
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 22+

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Technical data

Product details

15 specifications

Core information

Product name
NXP MC33908NAE
Type
NXP
Minimum package
250 托盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
NXP
Electronic Component
MC33908NAE
Electronic Component
1
Package
LQFP-48(7x7)
Electronic Component
Specialized Power Management(PMIC)
Electronic Component
0.22g
Electronic Component
1
Features
Electronic Component
Electronic Component
BM0265368662
Electronic Component
Electronic Component
Electronic Component
250

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

MC33908NAE 汽车电源管理IC产品概述

MC33908NAE是恩智浦(NXP)针对汽车电子场景推出的高集成度多输出电源稳压器,集成6路独立输出通道,适配宽电压输入范围,满足汽车环境下的可靠性与性能要求,是车身控制、车载信息娱乐等系统的核心电源组件。

一、产品定位与核心应用场景

MC33908NAE专为汽车电子的多模块供电需求设计,典型应用覆盖:

  • 车身控制系统(BCM):为传感器、执行器、微控制器提供稳定电源;
  • 车载信息娱乐(IVI):支撑显示屏、音频模块、通信单元的供电;
  • ADAS辅助驾驶:为摄像头、雷达等传感器稳压;
  • 动力系统辅助:如发动机管理、变速箱控制单元的辅助电源。

其汽车级设计确保在温度波动、电源干扰、机械振动等复杂场景下稳定工作。

二、关键参数与封装规格

2.1 核心电气参数

参数 规格值 应用意义 输入电压范围 -1V ~ 40V 覆盖汽车12V系统冷启动(低至6V)、负载突降(高至40V)及反向电压(-1V) 输出通道数 6路 独立输出,适配多模块不同电压需求 工作温度范围 -40°C ~ 125°C 符合汽车级AEC-Q100 Grade 1标准 封装类型 HLQFP-48(7×7mm) 表面贴装+暴露焊盘(EP),兼顾小型化与散热

2.2 输出特性

6路输出支持多重电压配置(典型值含3.3V、5V、12V等),部分通道为低压差线性稳压器(LDO),部分为开关模式,平衡效率与纹波控制。

三、核心功能特性

3.1 宽电压适应性

输入范围覆盖-1V至40V,应对汽车电源极端波动:

  • 冷启动时电压低至6V仍稳定输出;
  • 负载突降(点火关闭瞬间)承受40V高压;
  • 反向电压保护(-1V)防止极性接反损坏。

3.2 集成保护机制

内置多重保护提升可靠性:

  • 过流保护(OCP):各通道独立限流,避免负载短路损坏;
  • 过压保护(OVP):输出超限自动关断;
  • 过热保护(OTP):结温过高时降额或关断;
  • 欠压锁定(UVLO):输入低于阈值时禁止输出,防止不稳定。

3.3 散热与效率优化

  • 暴露焊盘(EP):通过PCB地平面增强散热,降低结温;
  • 低静态电流:待机模式电流消耗极低,符合汽车节能要求。

四、可靠性与环境适应性

MC33908NAE通过AEC-Q100 Grade 1认证,满足汽车电子严苛要求:

  • 温度循环:-40°C至125°C循环测试无失效;
  • 机械振动:符合ISO 16750汽车振动标准;
  • 电磁兼容(EMC):低噪声设计,减少对敏感电路的干扰。

五、典型应用设计要点

  1. 输入滤波:输入引脚并联10μF陶瓷电容+100μF电解电容,抑制瞬态电压;
  2. 输出电容:各通道并联1μF~10μF陶瓷电容,稳定输出纹波;
  3. 散热设计:EP焊盘连接PCB大面积地平面,必要时增加散热铜箔;
  4. 布局注意:电源路径尽量短,避免与模拟信号交叉,减少噪声耦合;
  5. 保护配置:外部电阻可调整部分通道过流阈值,适配不同负载功率。

六、选型与替换说明

MC33908NAE属于恩智浦MC33908系列,同系列型号(如MC33908NAER2)仅封装/后缀差异,功能参数一致。替换时需确保输出电压、通道数、输入范围、汽车级认证匹配。

总结:MC33908NAE凭借宽输入范围、多重保护、汽车级可靠性,成为车身控制、IVI、ADAS等系统的理想电源解决方案,满足汽车电子小型化、高可靠的设计需求。

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