• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

These two families of high speed drivers are designed to provide drive waveforms for complementary switches. Complementary switch configurations are commonly used in synchronous rectification circuits and active clamp/reset circuits, which can provide zero voltage switching. In order to facilitate the soft switching transitions, independently programmable delays between the two output waveforms are provided on these drivers. The delay pins also have true zero voltage sensing capability which allows immediate activation of the corresponding switch when zero voltage is applied. These devices require a PWM-type input to operate and can be interfaced with commonly available PWM controllers.

In the UC1714 series, the AUX output is inverted to allow driving a p-channel MOSFET.

特性

• Single Input (PWM and TTL Compatible)
• High Current Power FET Driver, 1.0A Source/2A Sink
• Auxiliary Output FET Driver, 0.5A Source/1A Sink
• Time Delays Between Power and Auxiliary Outputs Independently Programmable from 50ns to 500ns
• Time Delay or True Zero-Voltage Operation Independently Configurable for Each Output
• Switching Frequency to 1MHz
• Typical 50ns Propagation Delays
• ENBL Pin Activates 220uA Sleep Mode
• Power Output is Active Low in Sleep Mode
• Synchronous Rectifier Driver