- HR1001L
HR1001L
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详情
HR1001L 是一款增强型 LLC 控制器,可提供自适应死区时间调整(ADTA)和容性模式保护(CMP)两个新功能。HR1001L 是 HR1001B 的 OCP 锁定版本。
ADTA 在 2 个互补栅极输出之间自动插入一个死区时间,这可以在检测半桥转换节点的 dV/dt 电流时让驱动信号保持关断。ADTA 这一特性简化了设计、降低了 EMI 并且提高了效率。
HR1001L 包含(抗)容性模式保护,可以防止在输出短路或严重过载时发生具有潜在破坏性的容性模式开关。此特性可在异常情况下保护 MOSFET,保障变换器的可靠性。
HR1001L 集成了一个可编程振荡器,用来设置最大和最小开关频率。芯片启动时开关频率被调至最大,然后逐渐降低直至控制环路接管,这样可以防止产生过多的浪涌电流。HR1001L 在轻载时会进入可控的突发模式,能最大限度地减少功耗,并加大输出调节能力。
全方位保护功能包括两级过流保护(OCP)、外部锁定关断、欠压保护/开启、容性模式保护(CMP)和过温保护(OTP)。
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产品特性和优势
- 两级过流保护(OCP):频移和锁定模式
- 自适应死区时间调节(ADTA)
- 容性模式保护(CMP)
- 适用于谐振半桥变换器的 50% 占空比、可变频率控制功能
- 集成自举二极管的 600V 高端栅极驱动,具有高 dv/dt 抗扰度的高精度振荡器
- 工作频率高达 600kHz
- 锁定禁用输入端,用于简化保护
- 远程控制开启/关闭以及 BO 引脚欠压保护
- 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 SOIC-16 封装
正在供货产品型号
HR1001LGS-P HR1001LGS-Z HR1001LGS
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
HR1001L Resources
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PRODUCT CATEGORY
AC-DC产品选型产品类目 -
APPLICATION
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