昂宝电子家电辅助电源IC OB364M，支持高压启动内置自供电模块

时间： 2024-08-27 来源：On-Bright官网

技术问答

昂宝电子推出一款高性能、高精度、低待机功耗、外围元器件精简的交直流转换电源芯片 OB364M，该芯片集成专用的开关控制器及高可靠性MOSFET（BVdss: 750V/Rdson: 20ohm），可以Pin to Pin兼容替代LNK364，广泛应用于家电、工业系统、电表等使用的辅助电源。

图1 OB364M系统应用图（VDD自供电）

OB364M内部集成高压启动及供电电路。系统上电后，母线电压直接通过Drain对VDD电容充电。VDD达到芯片开启阈值时，内部的控制电路开始工作，因此无需辅助绕组供电。当VDD加入辅助绕组供电之后，内部高压启动电路关断，从而实现超低待机功耗。

图2 待机功耗（VDD自供电）

图3 待机功耗（VDD外供电）

OB364M采用DIP7封装，集成丰富的保护和自恢复功能。包括软启动控制、逐周期限流、输出过流&短路保护、片上过温保护、VDD过压&欠压保护等。采用OB364M设计的演示方案基本信息可以参照如下介绍。

图4 演示方案原理图

图5 演示方案 BOM List

图6 演示方案Demo基本信息

图7 演示方案Demo效率测试

目前OB364M已在客户端批量供货，如需了解更多产品信息和演示方案，请联络世强平台工作人员获取更多信息。

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本文由雪飘梦飞转载自On-Bright官网，原文标题为:昂宝推出家电辅助电源IC OB364M，支持高压启动内置自供电模块，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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