WMSIC Electronic Components

ADI/LINEAR MAX253ESA+T MAX253ESA

ModelMAX253ESA+T
PackageSOP-8
BrandADI/LINEAR
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ADI(Analog Devices) / LINEAR MAX253ESA+T
Type
ADI/LINEAR
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
MAX253ESA+T
Electronic Component
1
Package
SOP-8
Type
Driver
Electronic Component
RS-485 / RS-422IC
Electronic Component
0.219g
Electronic Component
1
Features
Low Power
Electronic Component
BM0264771450
Operating Temperature
40℃~+85℃
Operating Voltage
5V;3.3V
Static Current
450uA
Electronic Component
Electronic Component
Electronic Component
2500

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

MAX253ESA+T 变压器驱动器产品概述

一、核心产品定位与应用场景

MAX253ESA+T是亚德诺(ADI,原Linear Technology)推出的低电压隔离式变压器驱动器,专为2.5V~6V供电系统设计,核心定位是简化小型化隔离电源的驱动电路设计。其应用场景覆盖三大领域:

  • 消费电子:智能穿戴(手表、耳机)的隔离充电电路、便携式医疗设备(血糖仪、血压计)的低功耗隔离电源;
  • 工业控制:PLC模块、传感器节点的隔离供电(适配-40℃~+85℃宽温环境);
  • 通信设备:5G小基站、光模块的辅助隔离电源,满足高密度PCB布局需求。

二、关键电气参数详解

该器件的核心参数围绕“低功耗、宽电压、高可靠性”设计,具体如下:

  1. 输入输出特性:输入电压范围2.5V~6V,兼容单节锂电池(3.7V)、3.3V/5V逻辑电源,无需额外电平转换;输出端可驱动变压器初级绕组,最大驱动电流满足10W以内隔离电源的功率需求。
  2. 功耗表现:静态电流典型值仅450μA,处于同类产品前列,待机状态下可显著降低系统总功耗(例如便携设备待机电流可减少30%以上)。
  3. 保护与稳定性:内置过流限制功能,当变压器绕组电流过大时自动关断输出,避免器件损坏;输出电压纹波控制在5%以内,适配对纹波敏感的模拟电路供电。

三、封装与环境适应性

MAX253ESA+T采用NSOIC-8(窄体小外形封装),尺寸为5.2mm×6.2mm,引脚间距1.27mm,相比普通SOP-8更紧凑,可节省约20%的PCB空间;封装材料符合RoHS无铅标准,满足欧盟环保合规要求。
环境适应性方面,工作温度范围为-40℃+85℃(工业级),存储温度-65℃+150℃,可稳定运行于户外、车载等极端温度场景,无需额外温度补偿电路。

四、典型应用电路特点

其典型应用为隔离式反激拓扑电源,电路设计仅需5个外围元件(2个电阻、2个电容、1个变压器),无需复杂的反馈网络,设计周期可缩短40%以上:

  • 输入侧:3.3V/5V电源通过电阻限流后接入器件VCC引脚;
  • 输出侧:变压器初级绕组接器件OUT引脚,次级绕组可通过整流二极管输出隔离电压(如5V/1A);
  • 保护侧:通过R_SET电阻设置过流阈值,避免绕组饱和损坏。

五、选型与使用注意事项

  1. 电压匹配:输入电压需严格控制在2.5V6V,若使用5V以上电源(如6V),需在VCC引脚串联10Ω20Ω限流电阻;
  2. 散热优化:满载运行时(如驱动10W变压器),需在PCB上增加散热焊盘(面积≥10mm²),避免器件结温过高;
  3. 替代选型:若需更高功率(>10W),可选择ADI同类产品LT3575(输入电压3V~40V);若需更小封装,可参考SOT-23封装的MAX254。

MAX253ESA+T凭借“低功耗、小体积、宽温适配”的核心优势,成为小型化隔离电源设计的主流选择,尤其适合对成本、功耗敏感的便携与工业应用场景。

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