UCC2807-3是TI公司的一款PWM与谐振控制器产品，UCC2807-3是可编程最大占空比 PWM 控制器，本页介绍了UCC2807-3的产品说明、应用、特性等，并给出了与UCC2807-3相关的TI元器件型号供参考。
UCC2807-3 - 可编程最大占空比 PWM 控制器 - PWM与谐振控制器 - 离线隔离型DC/DC控制器和转换器 - TI公司（Texas Instruments，德州仪器）
The UCC3807 family of high speed, low power integrated circuits contains all of the control and drive circuitry required for off-line and dc-to-dc fixed frequency current mode switching power supplies with minimal external parts count.
These devices are similar to the UCC3800 family, but with the added feature of a user programmable maximum duty cycle. Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor. The UCC3807 family also features internal full cycle soft start and internal leading edge blanking of the current sense input.
The UCC3807 family offers a variety of package options, temperature range options, and choice of critical voltage levels. The family has UVLO thresholds and hysteresis levels for off-line and battery powered systems. Thresholds are shown in the table below.
- User Programmable Maximum PWMDuty Cycle
- 100-A Startup Current
- Operation to 1 MHz
- Internal Full Cycle Soft Start
- Internal Leading Edge Blanking of Current Sense Signal
- 1-A Totem Pole Output
