WMSIC Electronic Components

HGSEMI UC2844BM/TR UC2844BM

ModelUC2844BM/TR
PackageSOP-8
BrandHGSEMI
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
HGSEMI UC2844BM / TR
Type
HGSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
UC2844BM/TR
Electronic Component
1
Package
SOP-8
Electronic Component
AC-DC Controllers and Regulators
Electronic Component
0.261g
Electronic Component
1
Features
(UVP); (OCP)
Electronic Component
BM0264336359
Electronic Component
PWM
Operating Temperature
40℃~+85℃
Operating Voltage
10V~28V
Switching Frequency
100kHz~500kHz
Isolation
Isolated
Output Current
1A

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

UC2844BM/TR 产品概述

一、产品简介

UC2844BM/TR 是一款面向工业级开关电源的隔离型 PWM 控制器,属于纯国产 HGSEMI(华冠)系列替代料,作为 UC3844M/TR 的升级替代方案,适用于 AC-DC 控制器与稳压器设计。器件以高可靠性、电磁兼容友好和工业温度等级为设计目标,兼顾功耗与开关性能,适合批量生产与长期供应。

二、主要规格

  • 是否隔离:隔离型
  • 工作电压:10V ~ 28V
  • 开关频率:100kHz ~ 500kHz(可外加元件调整)
  • 输出电流:典型 1A(驱动端)
  • 最大耗散功率 (Pd):850mW
  • 最大占空比:50%
  • 工作温度:-40℃ ~ +85℃
  • 工作模式:固定频率 PWM 调制(电流模式控制兼容设计)

三、功能特性

  • 欠压锁定(UVLO):确保电源启动与停机有可靠的阈值控制,防止异常工作。
  • 欠压保护(UVP):在输入或参考异常时快速进入保护态,提升系统安全性。
  • 斜坡补偿:在高占空比或并联运行时有效抑制亚谐振,改善稳定性与并联共享性能。
  • 过流保护(OCP):快速响应电流突变,限制开关管与变压器过载。
  • PWM 调制:适用于电流模式 PWM 设计,便于实现电流限制与快速瞬态响应。

四、封装与替代性

  • 封装:SOP-8(工业常用封装,便于 PCB 布局与散热)
  • 替代性:兼容 UC3844M/TR 引脚与功能架构,可作为升级替代器件使用。建议在现有设计上做试样验证以确认时序与外围元件匹配。

五、典型应用与建议试样

适用于中小功率开关电源、离线开关适配器、充电器、LED 驱动、DC-DC 升降压模块及工业控制电源等场景。针对不同频率与带载特性,建议:

  • 先在实验室板上按推荐外围网络完成 UVLO、补偿与采样电阻调整;
  • 在 100kHz~300kHz 区间先行试验,结合散热验证耗散功率 Pd 与热阻;
  • 并联或多路输出时重点验证斜坡补偿与 OCP 协调情况。

如需样品或详细参数手册(含引脚图、推荐外围、电气特性曲线与典型应用电路),建议联系 HGSEMI 供应渠道索取以便快速试样验证与量产导入。

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