德州仪器公司(TI) introduced the industry’s fastest half-bridge gate driver for discrete power MOSFETs and IGBTs that operate up to 600 V. The UCC27714 high-side, low-side driver with 4-A source and 4-A sink current capability reduces component footprint by 50 percent, enabling higher power density in high-frequency, offline AC/DC power supplies used in server, telecom and industrial designs including uninterruptible power supplies. For more details, seewww.ti.com/UCC27714-pr.
The UCC27714 delivers 90 nanosecond (ns) propagation delay, 40 percent lower than existing silicon solutions, tight control of the propagation delay with a maximum of 125 ns across -40 C to 125 C and tight channel-to-channel delay matching of 20 ns across -40 C to 125 C. The device eliminates the need for bulky gate drive transformers, saving significant board space in high-frequency switch-mode power electronics.
Key features and benefits of the UCC27714:
- 较小的足迹创造了最高的功率密度解决方案：UCC27714在次级受控电源中将门驱动器组件的足迹降低了50％。
- 高级噪声耐受：Negative voltage handling of -6 V at the switched-node pin creates the ability to tolerate noise, causing virtually no malfunctions in the electronic system.
- MOSFETs have the ability to drive over a wide power range:The device’s high-current capability of 4 A enables MOSFETs to drive over a wide power range, from a few watts to a kilowatt.
- 跨温度运行：所有的选择rical characterizations have little variations across operating temperatures, creating a simplified design and speeding time to market.
Complementary devices to maximize system performance
系统中的每个门驱动程序都需要适当的控制器用于最终应用程序。ti提供了几种脉冲宽度调制（PWM），谐振,功率因数校正（PFC）和数字电源控制器. With the UCC27714 and TI’s recently releasedUCC29950combination PFC (power factor correction) + LLC controller, designers can develop a complete, offlineAC/DC电源额定值高达几百瓦。UCC29950的完全内在化的PFC补偿减少了设计步骤，实现了快速的上市时间，而三层级别的当前保护和打ic模式操作可确保在短路和过载条件下进行稳健的操作。
Tools and support to speed design
TI为UCC27714提供了广泛的支持工具，以加快上市时间。立即使用PSPICE瞬态模型仿真软件或以下全面测试的参考设计中的参考设计库：
- UCC27714 600W Phase Shifted Full Bridge Converter Evaluation Module (UCC27714EVM-551)
- 230-V，400-W高效率电池充电器电源，带PFC和LLC，用于36-V电动工具（TIDA-00355)
- 360W相移，全桥谐振有限责任公司，高侧较低侧驱动器（TIDA-00381)
- 340W Digital Controlled LLC Resonant Half-Bridge DC-to-DC Power Conversion (TIDA-00512)
- 300W PFC Plus Resonant LLC Half-Bridge Controller Offline AC/DC PSU Module (TIDA-00520)
包装，价格和可用性
UCC27714现在可以在ti商店并通过公司的授权分销网络。高速600 V高方向驱动器配备了一个小轮廓集成电路（SOIC）-14套件，价格为1,000个单位定量中的1.75美元。
德州仪器公司
www.ti.com
Filed Under:电力电子技巧,电源
