- HR1000A
HR1000A
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详情
HR1000A是一款专用于谐振半桥拓扑的控制器。它提供两个驱动信号通道,以50%的占空比输出互补信号。两个互补栅极信号之间的内部固定死区时间为350ns,可确保瞬态期间的零电压开关,从而实现高频操作。它集成了自举二极管,简化了上管开关的外部驱动电路。HR1000A可以承受高达600V的电压,并具有高dV / dt噪声抗扰性。其调制开关频率可调节拓扑输出电压。HR1001A 还包含一个可调振荡器,用以设置最大和最小开关频率。控制器以设定的最大开关频率启动,并逐渐降低速度,直到控制环路接管工作,从而避免了过大的输入浪涌。还可以设置器件在轻载条件下强制进入受控突发模式操作,以最大程度地降低功耗并加强输出调节 。HR1001A还具有多种保护功能,包括锁存关断、自动恢复、掉电保护和过温保护,这提高了变换器设计的安全性,而不会增加电路复杂性。该IC为上下管栅极驱动器提供了1.5A/2A拉/灌电流能力。HR1000A 采用 SO-16 封装。
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产品特性和优势
- 50% 占空比,为谐振半桥变换器提供多种频率控制功能
- 集成自举二极管的 600V 上管栅极驱动器,具有高dV/dt抗扰度
- 为上管和下管栅极驱动器提供1.5A/2A拉/灌能力
- 高精度振荡器
- 工作频率高达 600kHz
- 两级过流保护:频移和锁存关断模式,具有可调持续时间
- 远程控制开/关和通过BO引脚提供的掉电保护
- 锁存禁用输入端,用于实现简单的保护功能
- 提供与PFC控制器的接口
- 轻载可调突发模式
- 用于输出电压单调上升的非线性软启动
- 采用 SO-16 封装
正在供货产品型号
HR1000AGS-P HR1000AGS-Z HR1000AGS HR1000AXN
以 P 和 Z 结尾的零件编号是相同的零件。P 和 Z 仅表示卷筒尺寸
P&Z的含义
HR1000A Resources
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PRODUCT CATEGORY
AC-DC产品选型产品类目 -
APPLICATION
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PRODUCT CATEGORY
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MPSCHOLAR
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MPSCHOLAR
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MPSCHOLAR
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