UCC24624 Dual-Channel Synchronous Rectifier Controller for LLC Resonant Converters

1 Features • 230-V VD pins rating • 23-ns turn-off delay to support LLC operating above resonant frequency and up to 625-kHz switching frequency • Proportional gate drive to extend the SR conduction time • Adjustable turn-off threshold for minimum body diode conduction • Automatic standby

文件：1.97063 Mbytes 页数：38 Pages

TI

德州仪器

Dual-Channel Synchronous Rectifier Controller for LLC Resonant Converters

文件：1.18966 Mbytes 页数：29 Pages

TI

德州仪器

用于 LLC 转换器的高频双路同步整流器控制器

UCC24624 高性能同步整流器 (SR) 控制器专用于 LLC 谐振转换器，以使用 SR MOSFET 替代有损耗二极管输出整流器并提高整体系统效率。 \n\nUCC24624 SR 控制器使用漏源极电压检测方法来实现 SR MOSFET 的开关控制。实现了比例栅极驱动器，以延长 SR 导通时间并最大程度地缩短体二极管导通时间。为了补偿由 SR MOSFET 寄生电感导致的偏移电压，UCC24624 实现了可调节正向关断阈值，以适应不同的 SR MOSFET 封装。UCC24624 具有内置的 475ns 导通时间消隐和固定的 650ns 关断时间消隐功能，以避免 SR 错误导通和关断。U • 230V VD 引脚额定值\n• 23ns 关断延迟，支持 LLC 以高于谐振频率和高达 625kHz 的开关频率运行 \n• 比例栅极驱动器，可延长 SR 导通时间\n• 可调节关断阈值，可最大程度地减小体二极管导通时间 \n• 具有 180µA 低待机电流的自动待机模式检测 \n• 具有内部钳位的 4.25V 至 26V 宽 VDD 工作范围\n• 自适应导通延迟，可实现更佳的 DCM 振铃抑制\n• 双通道互锁，可防止击穿 \n• 适用于 N 沟道 MOSFET 的集成式 1.5A 拉电流和 4A 灌电流能力栅极驱动器\n• 8 管脚 SOIC 封装;

TI

德州仪器

丝印：U24624；Package：SOIC(D)；UCC24624 Dual-Channel Synchronous Rectifier Controller for LLC Resonant Converters

1 Features • 230-V VD pins rating • 23-ns turn-off delay to support LLC operating above resonant frequency and up to 625-kHz switching frequency • Proportional gate drive to extend the SR conduction time • Adjustable turn-off threshold for minimum body diode conduction • Automatic standby

文件：1.97063 Mbytes 页数：38 Pages

TI

德州仪器

丝印：U24624；Package：SOIC(D)；UCC24624 Dual-Channel Synchronous Rectifier Controller for LLC Resonant Converters

1 Features • 230-V VD pins rating • 23-ns turn-off delay to support LLC operating above resonant frequency and up to 625-kHz switching frequency • Proportional gate drive to extend the SR conduction time • Adjustable turn-off threshold for minimum body diode conduction • Automatic standby

文件：1.97063 Mbytes 页数：38 Pages

TI

德州仪器

丝印：U24624；Package：SOIC(D)；UCC24624 Dual-Channel Synchronous Rectifier Controller for LLC Resonant Converters

1 Features • 230-V VD pins rating • 23-ns turn-off delay to support LLC operating above resonant frequency and up to 625-kHz switching frequency • Proportional gate drive to extend the SR conduction time • Adjustable turn-off threshold for minimum body diode conduction • Automatic standby

文件：1.97063 Mbytes 页数：38 Pages

TI

德州仪器

丝印：U24624；Package：SOIC(D)；UCC24624 Dual-Channel Synchronous Rectifier Controller for LLC Resonant Converters

1 Features • 230-V VD pins rating • 23-ns turn-off delay to support LLC operating above resonant frequency and up to 625-kHz switching frequency • Proportional gate drive to extend the SR conduction time • Adjustable turn-off threshold for minimum body diode conduction • Automatic standby

文件：1.97063 Mbytes 页数：38 Pages

TI

德州仪器

丝印：U24624；Package：SOIC(D)；UCC24624 Dual-Channel Synchronous Rectifier Controller for LLC Resonant Converters

1 Features • 230-V VD pins rating • 23-ns turn-off delay to support LLC operating above resonant frequency and up to 625-kHz switching frequency • Proportional gate drive to extend the SR conduction time • Adjustable turn-off threshold for minimum body diode conduction • Automatic standby

文件：1.97063 Mbytes 页数：38 Pages

TI

德州仪器

丝印：U24624；Package：SOIC(D)；UCC24624 Dual-Channel Synchronous Rectifier Controller for LLC Resonant Converters

1 Features • 230-V VD pins rating • 23-ns turn-off delay to support LLC operating above resonant frequency and up to 625-kHz switching frequency • Proportional gate drive to extend the SR conduction time • Adjustable turn-off threshold for minimum body diode conduction • Automatic standby

文件：1.97063 Mbytes 页数：38 Pages

TI

德州仪器

Dual-Channel Synchronous Rectifier Controller for LLC Resonant Converters

文件：1.18966 Mbytes 页数：29 Pages

TI

德州仪器